Turbo 616 powered Astro Van build
Turbo 616 powered Astro Van build
I saw a thread on pirate4x4 where a guy cut the top off of the MB oil filter housing and welded a cap to the remaining stub with a threaded fitting there. This way he retained the thermostat, bypass, stock oil cooler lines but added a remote oil filter. If you've got enough clearance for the bottom of the oil filter housing, this might be the way to go.
(04-23-2013, 10:47 AM)raysorenson I saw a thread on pirate4x4 where a guy cut the top off of the MB oil filter housing and welded a cap to the remaining stub with a threaded fitting there. This way he retained the thermostat, bypass, stock oil cooler lines but added a remote oil filter. If you've got enough clearance for the bottom of the oil filter housing, this might be the way to go.
(04-23-2013, 10:47 AM)raysorenson I saw a thread on pirate4x4 where a guy cut the top off of the MB oil filter housing and welded a cap to the remaining stub with a threaded fitting there. This way he retained the thermostat, bypass, stock oil cooler lines but added a remote oil filter. If you've got enough clearance for the bottom of the oil filter housing, this might be the way to go.
oiling almost resolved, i went through a few different remote plates.
This was the first one where I welded some 10-AN fittings to a 1/4 inch steel plate. It was pretty, but it leaked-
Went back in and welded around and around and around, 4 beads. It was ugly and didn't leak, and of course had I stopped to consider what I was doing, I probably wouldnt have warped the plate as bad and made it unusable except for a machinist to cut down.
version 2-
Then I wised up and went with 1/2 inch steel plate, and drilled and tapped the 10-AN fittings instead, which was a lot cleaner-
fits nicely with the transmission plate, im going to be using pushlok hose and fittings for my connections. I was looking for a basic oil cooler I can adapt to the 10-AN, but after reading mach4's thread over on PP where he diesel converts a SL, ill be following what he did and tapping the holes in the stock MB oil cooler I have.
The major hurdle im waiting on still is the power steering line bump fitting ends so I can make custom ones. I do not recommend ordering from "parts dave" for your domestic vehicle, its been 8 days and hasn't shipped yet.
couple updates-
vac pump hooked up to stock GM line, still need to add a port for vac shut off when I get to that, but for now I should have power brakes when I test fire this sucker
New fuel filter installed, made a bracket to hold a 500FG racor fuel filter, huge leap over the stock filter that was for the diesel. Combined water separator as well, nice piece of hardware
also have the oil filter location mounted. Just waiting on a new oil cooler from summit right now, then I can get the three lines made up that I need. I probably already mentioned in this thread, but this moroso head has a provision for a pressure gauge outlet, and a small secondary output I can use for turbo oiling. With the exception of not having an oil thermostat, I should be able to do everything else that the stock oil filter did.
Was looking to adapt the MB oil cooler, but the one I have is so beat up it seems a waste of time making custom line ends to fit on it, so I went with a new one that already has NPT ports on it I can easily adapt to -10 AN
easy access-
one short line might be a bit cramped between the plate and filter head, but worst case scenario, I make a longer one and loop around-
glow plug relay mounted to GM airbox, this way the wiring harness for it is close to the wiring harness I will be creating for the engine. Fits nicely here though
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Looking good.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
getting close to the test drive!
Today made some progress on hydraulics-
brakes hooked up as it was. Im not sure if this was the original design with the splitter, but it was what was on the van when I started, so I just recreated it with mostly new hardware and following the same areas that the stock lines used to
brake side-
junction area-
also hooked up the clutch line. Im not totally happy with the number of connections I made in this line, a total of 5 pieces, but I adapted the fittings on both the slave and master to regular brake line, then used a generic flex line from some unknown application to compensate for vibration. Im considering building a solid bracket for the body side of this flex line to limit broken line issues over time
also decided to pull the fuel tank, here it looks pretty good under its protective plastic shielding-
but its pretty badly surface rusted, it was empty and easy to handle, so ive pulled it to refinish it with rust converter
also this allowed me to get rid of all this rusted fuel and brake line above. Im going full rubber for the fuel lines instead. And I have the obligatory rusted out rear brake line above the fuel tank id really just felt like removing. Ive never owned a single astro where this line was still intact. Everyone runs the line through the tank straps
notice this vice grip! ive owned this van for years and never noticed it
all the parking brakes have been ripped out up to the pedal for the eventual installation of a handbrake
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Haha I love finding mystery vice grips
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Will a plastic F150 (21gal long) or Ranger(16 gal long) tank fit back there? Or a plastic Jeep Grand Cherokee(16 gal, square)?
Also, for the brake lines-cunifer tubing is worth the $$. If that's too rich for your blood, the poly coated is great as well.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(05-23-2013, 08:11 AM)Simpler=Better Will a plastic F150 (21gal long) or Ranger(16 gal long) tank fit back there? Or a plastic Jeep Grand Cherokee(16 gal, square)?I second the cunifer brake lines/tubing. It bends and flares way easier than steel and will outlast most vehicles.
Also, for the brake lines-cunifer tubing is worth the $$. If that's too rich for your blood, the poly coated is great as well.
(05-23-2013, 08:11 AM)Simpler=Better Will a plastic F150 (21gal long) or Ranger(16 gal long) tank fit back there? Or a plastic Jeep Grand Cherokee(16 gal, square)?I second the cunifer brake lines/tubing. It bends and flares way easier than steel and will outlast most vehicles.
Also, for the brake lines-cunifer tubing is worth the $$. If that's too rich for your blood, the poly coated is great as well.
The cunifer is a great idea, I wish Id done some research on other options before installing whats already there, but at least its super easy to service and replace.
The rear brake lines need to be replaced soon, so ill probably start with the cunifer in that area first, as more prone to rust anyway.
These may do ok, as the plan once the swap is drivable and ive done the rear suspension change over to steel, is to undercoat the whole vehicle, which will rubbercoat the new brake lines.
(05-22-2013, 06:50 PM)Simpler=Better Haha I love finding mystery vice grips
(05-22-2013, 06:50 PM)Simpler=Better Haha I love finding mystery vice grips
todays update-
The underside of the fuel tank was crispy, but not terrible, with the exception of one area where it was pretty rusty, but not through fortunately
refinished ready for installation. Glad I went through with this, I doubt this tank had another winter before it rusted through, especially on the top-
bottom-
top with plastic shield installed-
oil system all hooked up with the exception of the turbo feed line, though I did have the opportunity today to get that made, so I should hopefully get things put together this weekend for the turbo side.
cooler-
lines run by the fuel filter, and you can see here my shut off valve for fuel on the inlet side of the filter-
moroso head. I can't say enough about how nice this oil filter head is, you can see here the small port on the top ill be using for turbo feed, and the port in the middle front will eventually be for my oil pressure gauge.
The way I have this plumbed flow wise is engine, cooler, filter, back to engine. The reason is just in case any crap in the cooler gets dumped downstream, the filter will pick it up before it gets to the motor
tank back up-
fuel pump removed and sender unit reinstalled-
also fill neck drilled out to accept the large diesel nozzle-
Fuel lines are all run with the exception of priming needing to happen still-
return line I needed to make this little brass T to compensate for where the return used to go to the stock fuel filter top. 3/16 for the return, 1/4 for the injection pump return, and 5/16 back to the tank
Installed- I may rework this and permanently mount this nicely after I work out power steering, but for now its zip tied to the dip stick. secure there fortunately. Ive also replumbed running outlet from the lift pump directly into inlet for injection pump. I may also put a small inline filter here as well, but for now it should be fine
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
On every 617 I've touched, that rear turbo bolt is always loose, you don't reeeeealy need it :p
It looks great, even if that front end is a big ol' bucket of ugly(I cannot let this go-that plastic gm front gets me every time ). You should graft a w123 front onto it, or at least stick a big bumper to fill that gap.
Advance auto had 25' rolls of 2ga wire for ~$30 last time I checked, you might want to see if that's still the current price. Proper connections are everything, I haven't ever been able to start a 617 with just jumper cables.
What's up with the water connection on the back of the head?
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Can you pull the manifold off and have a machine shop offset drill the hole out? Maybe not enough material to do so?
(05-29-2013, 10:30 AM)Simpler=Better On every 617 I've touched, that rear turbo bolt is always loose, you don't reeeeealy need it :p
It looks great, even if that front end is a big ol' bucket of ugly(I cannot let this go-that plastic gm front gets me every time ). You should graft a w123 front onto it, or at least stick a big bumper to fill that gap.
Advance auto had 25' rolls of 2ga wire for ~$30 last time I checked, you might want to see if that's still the current price. Proper connections are everything, I haven't ever been able to start a 617 with just jumper cables.
What's up with the water connection on the back of the head?
(05-29-2013, 11:51 AM)DeliveryValve Can you pull the manifold off and have a machine shop offset drill the hole out? Maybe not enough material to do so?
(05-29-2013, 10:30 AM)Simpler=Better On every 617 I've touched, that rear turbo bolt is always loose, you don't reeeeealy need it :p
It looks great, even if that front end is a big ol' bucket of ugly(I cannot let this go-that plastic gm front gets me every time ). You should graft a w123 front onto it, or at least stick a big bumper to fill that gap.
Advance auto had 25' rolls of 2ga wire for ~$30 last time I checked, you might want to see if that's still the current price. Proper connections are everything, I haven't ever been able to start a 617 with just jumper cables.
What's up with the water connection on the back of the head?
(05-29-2013, 11:51 AM)DeliveryValve Can you pull the manifold off and have a machine shop offset drill the hole out? Maybe not enough material to do so?
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
When wiring a car from scratch, if you can use overkill wire-always use it. Advance is crazy-their wire prices (when you buy the whole reel) are from like 1998.
For the offset hole, why don't you drill it where it needs to be, but 1/8" larger, then sleeve it back down with a 1/16" wall tube? That way you will seal the exhaust gases and don't have to cut it all up. It's a trick they used to do with bolt holes and valve guides in v8 heads that had thin walls when ported.
If you were closer I could bang that out no problem. Or if I was still up in the 'bucket, they had mills at work.....
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(05-29-2013, 02:25 PM)Simpler=Better When wiring a car from scratch, if you can use overkill wire-always use it. Advance is crazy-their wire prices (when you buy the whole reel) are from like 1998.
For the offset hole, why don't you drill it where it needs to be, but 1/8" larger, then sleeve it back down with a 1/16" wall tube? That way you will seal the exhaust gases and don't have to cut it all up. It's a trick they used to do with bolt holes and valve guides in v8 heads that had thin walls when ported.
If you were closer I could bang that out no problem. Or if I was still up in the 'bucket, they had mills at work.....
(05-29-2013, 02:25 PM)Simpler=Better When wiring a car from scratch, if you can use overkill wire-always use it. Advance is crazy-their wire prices (when you buy the whole reel) are from like 1998.
For the offset hole, why don't you drill it where it needs to be, but 1/8" larger, then sleeve it back down with a 1/16" wall tube? That way you will seal the exhaust gases and don't have to cut it all up. It's a trick they used to do with bolt holes and valve guides in v8 heads that had thin walls when ported.
If you were closer I could bang that out no problem. Or if I was still up in the 'bucket, they had mills at work.....
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
I'll try and find a pic, my method will definitely work for moving that hole over. You will still have to pull the manifold, but it will be less welding than an angle grinder.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
so after bleeding a few more times I have a good clutch pedal now, and I am having an issue predicted by a forum member where I cannot mechanically depress the clutch pedal enough to disengage it at the transmission. With a fully bled clutch and hard pedal, I cannot get into gear. Not even close.
I have been told by an astro owner with a 5-speed stock that the master cylinder plunger should hit horizontal and center with the pedal fully engaged. He also said that even on the stock astro that it was finicky, that there was zero play, and if it didn't depress enough by a millimeter, it would be problem.
The plunger does appear to hit center, BUT, it does not move the clutch enough to actually disengage it. The first thing im going to try is pulling the pedal, and drilling a second hole closer to the firewall in the same area for the plunger to attach, this way the plunger will be that much more depressed when I push the pedal in. Hopefully this helps the issue, if not ill be reworking the construction (curve where it hits the body) of the pedal and or where the plunger attaches.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Can you swap in a larger clutch MC? More volume at the pedal would give you more movement at the slave. I'm sure the astro guys would take your old stock MC
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(05-31-2013, 11:51 AM)Simpler=Better Can you swap in a larger clutch MC? More volume at the pedal would give you more movement at the slave. I'm sure the astro guys would take your old stock MC
(05-31-2013, 11:51 AM)Simpler=Better Can you swap in a larger clutch MC? More volume at the pedal would give you more movement at the slave. I'm sure the astro guys would take your old stock MC
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Sweet! I didn't know that about GM masters, that's a good trick. You better have this thing running in time for the PA benzfest
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(06-06-2013, 03:09 PM)Simpler=Better Sweet! I didn't know that about GM masters, that's a good trick. You better have this thing running in time for the PA benzfest
(06-06-2013, 03:09 PM)Simpler=Better Sweet! I didn't know that about GM masters, that's a good trick. You better have this thing running in time for the PA benzfest
here is the new master and pedal assembly-
a floor mounted wildwood setup, with a big 3/4 bore master
This thing is designed to bolt flat to a floor, and some modification had to be done to allow such a mounting on the van floor. Fortunately with the body lift I had some room to do the below-
First I cut out where it was going to sit-
Then I made this recessed plate, unfinished here, but you get the idea, hole will be drilled in the back for the master bore, and holes around the flange-
on the back side should be plenty of room for the new master, and I may be able to simply bend the existing line around and connect. The wildwood setup comes with 2 different reservoirs, and remote or on master mounting for them. Its a pretty nice kit with a lot of options
On the inside the pedal will sit at rest just about where the other pedals are-
Im way happier with this arrangement (once its done) than with the stock pedal. this has a lot of adjustment built in, and if it still doesn't get into gear, I know its not an issue with pedal throw. Also its considerably easier to get to vs struggling under the dash
floor clutch is all done, now dropping the transmission
final assembly-
installed-
good room underneath, a bit far down, so ill be mounting a remote reservoir up higher where the original stock master was.
feels really weird to have a clutch pedal pivot that way in anything other than an air cooled VW. No doubt eventually ill get used to it
JB3 - bloody fantastic work!
(06-21-2013, 07:37 AM)maxypriest JB3 - bloody fantastic work!
(06-21-2013, 07:37 AM)maxypriest JB3 - bloody fantastic work!
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Sooooooooooooooooooooooooooooon!
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(06-22-2013, 07:56 PM)Simpler=Better Sooooooooooooooooooooooooooooon!
(06-22-2013, 07:56 PM)Simpler=Better Sooooooooooooooooooooooooooooon!
ok, round 2 a failure. The van did move under its own power in 1st and reverse, but im still having a clutch engagement issue, and Ill be removing the transmission again to inspect
well heres a problem. Is it THE problem? time will tell.
nothing like a visual confirmation that the flywheel is contacting the adapter plate hardware to raise questions.
I recall a tight clearance, but no touching. Something has clearly changed, haven't pulled the transmission yet, but I did finally buy an appropriate jack, so I should get it done faster this time. Im cursing the day i ever moved this van off the lift
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Time to counter sink that and get some allen heads.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(06-27-2013, 10:21 PM)Simpler=Better Time to counter sink that and get some allen heads.
(06-27-2013, 10:21 PM)Simpler=Better Time to counter sink that and get some allen heads.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Yeah, I'm gonna have fun when It's my turn to do this
Also, mail me your spacer ring(or a spare) and I'll turn it nice and pretty for free on the lathe
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(07-02-2013, 10:52 AM)Simpler=Better Yeah, I'm gonna have fun when It's my turn to do this
Also, mail me your spacer ring(or a spare) and I'll turn it nice and pretty for free on the lathe
(07-02-2013, 10:52 AM)Simpler=Better Yeah, I'm gonna have fun when It's my turn to do this
Also, mail me your spacer ring(or a spare) and I'll turn it nice and pretty for free on the lathe
So update-
I finally drove this thing and its pretty interesting. I would say it takes some getting used to, but initially a little sluggish, but there is a learning curve like a 240, and I was zipping around decently once I found the right feel for the throttle. I instantly loved it, though I think I might want a better rear end ratio for later. Maybe a 4.10 ratio instead of 3.7. I only got up to 3rd gear, but the transmission feels pretty good, each ratio a bit shorter than the stock MB.
Wont do a highway test until I have all my gauges, and I still have big leak issues related to my remote oil filter plate. I have to take that off and repair it. Just looks like things arent threaded down tight enough, so might be able to do on the motor
here is a short video of the engine from the inside, unfortunately I was plagued by some traffic
http://www.youtube.com/watch?v=d-58YU9Qy...e=youtu.be
(07-04-2013, 02:19 PM)OM616 You haven't touched the Governor have you?? Adjusting it to take advantage of the turbo will make it a totally new engine!!!
(07-04-2013, 02:19 PM)OM616 You haven't touched the Governor have you?? Adjusting it to take advantage of the turbo will make it a totally new engine!!!
(07-04-2013, 02:33 PM)JB3 I haven't done anything to the governor. Basically the engine is stock apart from the turbo manifolds. I need to do this, I have never played with the injection pump, so slightly nervous. Same as the governor mod DIY in the egines forum?
You did this on yours?
(07-04-2013, 02:33 PM)JB3 I haven't done anything to the governor. Basically the engine is stock apart from the turbo manifolds. I need to do this, I have never played with the injection pump, so slightly nervous. Same as the governor mod DIY in the egines forum?
You did this on yours?
Interesting, thanks!
I will return to things like modding the pump after I get my gearing worked out.
I had thought on my RPO code for the van that i had a 3.73 diff, but after the test drive and sluggish first gear, I just went and verified at the axle tube and I actually have a FAS: 7.5", 3.23 open diff, which is way too low. The engine was originally mated with a 3.69 diff in the stock application, so im thinking a 3.73 would have been perfect, but a 4.10 would give me some nice low end torque for the heavier square body.
The manual trans ratios in the T5 im using are trans code 1352-201 which has really close gear ratios to the stock NA diesel gearboxes-
1-4.03
2-2.37
3-1.49
4-1.00
5-0.86
R-3.76
stock example MB trans gear ratios were-
1-3.90
2-2.30
3-1.41
4-1.00
R-3.66
the only ratios that are heavily off are the diff, 3.23 GM vs 3.69 MB.
If i convert to a 4.10 by swapping the ring and pinion, that should solve some of my sluggishness. If feels sort of if you are taking off in second for first gear as a comparison.
so heres what im doing about the battery. Turns out there is not enough room for the big mercedes diesel size battery to sit behind the passenger seat and still have room for the exhaust, so I had to move it to the other side of the driveshaft, even then it was a bit snug.
here is where the battery will live-
Here is the battery cage, I went a little overboard on the construction of this and may have heavily overbuilt it, on the left side in the pic there is a reinforced armor plate just in case there is a driveshaft issue. It should be able to take a major hit and be fine.
basically its just a stock MB battery tray in an angle iron structure-
The weight of this thing with the battery included might necessitate an inner piece to sandwich the floor instead of hanging from it
The plan is to predrill holes around this for splash shields and make those out of plastic sheet later on. I want to get it in and see if that makes sense.
here it is installed-
battery is a tiny bit snug getting down in there, but fine if its on a slight angle
armor plate next to driveshaft, pretty close, about 1.5 inchs-
this contraption takes up a lot of the available space in this area, but I should still be able to get the larger fuel tank in if I decide I want that
You are really going in on this project. I like the work!
good job!
thanks! would like to have it reliably useful.
so, ive permanently wired the starting system, and solved a massive oil leak I was having, so now the think can be driven for a distance over a block without fear of draining all the oil out on the street.
Power steering I was hoping to have done today, but im running into continuous issues with those dam metric fittings on the pump. (scrapped the idea of hanging the GM pump, getting the pulleys lined up was not a simple affair, decided I was reinventing the wheel)
so I have a custom high pressure line ready, and my plan is to use the MB fitting on some 3/8ths brake line and do a double flare on the lip, which "should" seal on the inverted flare style fitting that this pump seems to have. Can anybody identify exactly what this metric fitting is called they are using? would be nice to just be able to buy the correct part. I think my route will work, but just in case it doesn't.
after power steering, whats left to do is-
wire up charging system
wire up glow plugs
finish exhaust system
install gauges and or get gauges to work
figure out speedo
swap rear end ring and pinion (long term)
I get the charging and exhaust done and its a daily driver though.
couple updates-
so ive been tinkering around with power steering on this thing for a bit, and had gone so far as adapting a GM pump to a MB pulley. The GM pump sits low on the driver side and it could have worked If I could line the pulley up properly
stock GM
GM pump with MB pulley-
Unfortunately this is pretty hard to do properly, and ultimately decided I was reinventing the wheel, and put the MB power steering pump back on and adapted a high pressure line to it-
Line goes up and over to swing behind, I may redo this later, not really satisfied with the routing of this line-
However, power steering is all hooked up and its really nice to have that back, this thing has such a nice turning radius, it was a pleasure to start whipping it around with the power steering finally working.
Also, welded up exhaust, all I ended up doing is having a piece made with a little flex joint that ran back to the stock muffler and it was done. Used the opportunity to fix some rattling mounts that plagued this thing when I was using it with the gas motor. I still need to get in there and build a support bracket for the downpipe off I think the bell housing. Its a solid exhaust, but I would feel more comfortable with less potential stress on the turbo flange.
After that installed an aftermarket oil pressure and temp gauge, and I was ready for a day of test/use finally!
Puttered around for a few hours doing errands, where it did fine, took it out on the highway and 5th is really a hopeful gear. cruises along nicely in 4th, but 5th you really need a perfect flat to pull. I think this should improve when I get around to swapping the ring and pinion though, at least a little bit.
So far very pleased, sluggish in first takes getting used to, but I might be able to improve that by getting a new throttle cable or adapting some other style cable that is less sticky.
still need to-
-wire up charging system (priority)
-wire up glow plugs (priority)
-figure out shutting off by key Popping the clutch in first to kill it is effective, but hard on stuff.
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Have you tweaked the pump at all? I know OM616, ronnie, and purplecomputer have tweaked 616 pumps and they like em'
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(07-17-2013, 08:53 AM)Simpler=Better Have you tweaked the pump at all? I know OM616, ronnie, and purplecomputer have tweaked 616 pumps and they like em'
(07-17-2013, 08:53 AM)Simpler=Better Have you tweaked the pump at all? I know OM616, ronnie, and purplecomputer have tweaked 616 pumps and they like em'
so mileage and test update-
Yesterday I needed to take a fridge down to a rental property in southern CT from RI. I was excited as this was an ideal test run and shake down cruise.
I went first to a diesel station, and filled to the brim, then drove down to the property, completed the job, and drove back to the same diesel station, same pump, and filled to the brim.
On the way down I did all highway, and the way back I came cross country through hills and two lane back roads. The objective was to see how it performed on both.
I then later went into google maps and duplicated my route to get accurate mileage.
The trip down I traveled 157 miles, and the way back 141 miles for a total of 298 miles. When i filled up I had used 10.14 gallons of diesel, which is an astonishing 29.4 mpg for this thing in its first real trip! The best I had ever done before was 23 mpg, but more typically with the 4.3 the mileage was 18-21mpg. If I had done all highway, it might have broken 30mpg.
This represents a high water mark and I do not believe its sustainable, as the gearing is just not dialed in and its not super easy to drive, too much top end gearing, not enough granny gearing. It got great economy due to the diff, but it could not at any time pull 5th unless downhill and drafting, and is slower than a stock NA 240, but not by much, mostly first gear.
Most of the trip was done in 4th, and hills are rough on this arrangement, requiring you to wind it out a bit. One thing I really need is a tach, the sound level is so different in this tin box of a vehicle with most of the insulation stripped and multiple holes in the floor, that im not sure if im running redline, or just barely touching 3grand rpm. A tach will solve this problem.
When I got back and parked the van, I jumped in my DD 240, and was astonished at how peppy it was and how quiet.
As far as temp, the engine maintained a very steady 170 degrees even though it was about 95 all day, and I went over some really bad stretches of road and today am going to to a check of all custom brackets and fastners, as I rattled the heck out of this thing.
Issues noticed are the suspension settled a bit and the camber of the RF tire is horrendous, so bad it actually skids when you make a right hand turn under any speed. An alignment should take care of that.
First gear takeoff is still a real problem. Its hard to describe, but basically its like starting off a regular 240 in 2nd gear. You have to rev high, and still its a slow start, and you are close to the stall line until you are moving a bit. This is my biggest concern at the moment, its definitely drivable, but absolutely not possible to tow with this thing until I improve the gear ratios. First the diff, then Ill see how it does with the transmission, also going to drop tire sizes same time.
I think monday I will be going to the dump, so ill get a new weight measurement after the conversion and see how its changed, and how much heavier this van is than a regular 123.
does anyone know what the 207D TN vans had for a rear end ratio? Id like to compare once I get my new weight.
Chevy also did 4.57 rear ends, but I would have to custom modify the axle tubes to work with this van, which is not impossible, but still major work, its a heavier rear axle, whereas I can just up the current axle to a 4.10 with just gearing, not change the whole assembly.