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+--- Thread: compatible fuel filters om617 (/showthread.php?tid=2171)
compatible fuel filters om617 - larsalan - 01-22-2011
I was just at the auto store getting a spare secondary filter and started to wonder...
Is there an advantage to putting a larger filter on that stock housing? Maybe there is a better/cheaper option than the MB spec filter.
There would be room for a taller filter. Would it last longer?
Or is the stock the best?
the stock filter cost $12 and change. and even shopping around they seem to be close to $11 at best.
RE: compatible fuel filters om617 - DeliveryValve - 01-22-2011
(01-22-2011, 05:07 PM)larsalan I was just at the auto store getting a spare secondary filter and started to wonder...
Is there an advantage to putting a larger filter on that stock housing? Maybe there is a better/cheaper option than the MB spec filter.
There would be room for a taller filter. Would it last longer?
Or is the stock the best?
the stock filter cost $12 and change. and even shopping around they seem to be close to $11 at best.
Yes there are several advantages. Cheaper, longer life, water separator, and 2 micron fuel filtering.
See thread.
http://www.superturbodiesel.com/std/fuel-water-separator-t-176.html
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RE: compatible fuel filters om617 - larsalan - 01-22-2011
So...
1.buy a 16mm* 1.5 thread screw and drill it into a banjo shape
2. get the baldwin filter BF7591-D
right?
or was there also an issue with the height of the filter that needs to be adjusted?
--
shit, I will have to return this stock filter. That baldwin is like twice the size and looks to be a few dollars cheaper.
RE: compatible fuel filters om617 - DeliveryValve - 01-23-2011
(01-22-2011, 06:10 PM)larsalan So...
1.buy a 16mm* 1.5 thread screw and drill it into a banjo shape
2. get the baldwin filter BF7591-D
right?
or was there also an issue with the height of the filter that needs to be adjusted?
--
1-2 yes, also need to tap the filter head to accept the larger banjo.
You'll need to make an extension plate to move the filter head out further so the filter housing can clear the powersteering mount.
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RE: compatible fuel filters om617 - larsalan - 01-23-2011
Yeah, I see that I'll need to tap a bigger opening in the housing. I have also seen pics of people just rotating the housing a bit without making an extension plate.
Waiting for the baldwins to arrive in the mail then I'll go get a bolt and try to make it into a good banjo.
RE: compatible fuel filters om617 - larsalan - 01-25-2011
So, where can I get the bolt from?
boltdepot?
http://www.boltdepot.com/product.aspx?cc=20&cs=77&cm=21&cd=1385
and what length should I order? Not a single shop in town has 1.5 threads on a 16mm
RE: compatible fuel filters om617 - casioqv - 01-25-2011
The stock filter is more than sufficient for most purpouses, but if you're really serious about running crap fuel (say from rural stations with very low turnover) nothing that fits on the stock housing will cut it.
On my dads offshore diesel trawler he's using two large Racor filter/water separators with an isolation valve and a large stockpile of spare cartridges. This way if you're stuck with some seriously crappy fuel you can switch back and forth and replace cartridges without shutting the engine down.
We used to use the same setup on our diesel Suburban we took to Baja often, and it saved us many times.
RE: compatible fuel filters om617 - larsalan - 01-25-2011
very interesting now back to the bolt question...
should it be the same length at the 14*1.5mm stock banjo bolt?
RE: compatible fuel filters om617 - casioqv - 01-25-2011
I dunno about the length but I've had good luck with boltdepot, other than their shipping prices being pretty high. If you already have the cartridge, just measure how long it will need to protrude to use all the threads.
I'm curious if a stock VW/Volvo cartridge would be a screw-on solution on the Mercedes... they're considerably longer and have a built in water separator.
RE: compatible fuel filters om617 - larsalan - 01-25-2011
I am looking at a whole'nother thread
re:
http://www.peachparts.com/shopforum/showthread.php?t=225004
re:
http://www.superturbodiesel.com/std/fuel-water-separator-t-176.html
looks like the stock bolt is 35mm length. The shortest at the boltdepot is 50mm. Guess I'll try that one.
edit: guess not. The bolt it $3.03 and shipping would be $10+
fuck that. gotta find a different one.
RE: compatible fuel filters om617 - DeliveryValve - 01-25-2011
(01-25-2011, 05:14 PM)casioqv ...
I'm curious if a stock VW/Volvo cartridge would be a screw-on solution on the Mercedes... they're considerably longer and have a built in water separator.
The Baldwin BF7591-D is the 2 micron filter that can be used in place of the VW/Volvo 10 micron filter. The stock VW/Volvo filter share the same 16X1.5 MM thread and gasket size as the Baldwin filter.
(01-25-2011, 05:42 PM)larsalan I am looking at a whole'nother thread
re:
http://www.peachparts.com/shopforum/showthread.php?t=225004
re:
http://www.superturbodiesel.com/std/fuel-water-separator-t-176.html
looks like the stock bolt is 35mm length. The shortest at the boltdepot is 50mm. Guess I'll try that one.
edit: guess not. The bolt it $3.03 and shipping would be $10+
fuck that. gotta find a different one.
50mm will work, I think the units I've purchase were 45mm.
I purchased my bolts locally. I don't remember the price, but if you can't find it, let me know and I'll investigate for you.
.
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RE: compatible fuel filters om617 - casioqv - 01-25-2011
Thanks for that info. I guess the VW/Volvo filter isn't a screw-on solution for the Mercedes, but the Baldwin is a screw-on improvement for VW/Volvo diesels! Then I can copy this mod larsalan is doing, and stock spares of just one diesel cartridge.
larsalan- yep Bolt Depot is outrageous for shipping although I usually do it anyway instead of driving around all day looking for obscure bolts at places like home depot only to find nobody stocks the exact one I need.
RE: compatible fuel filters om617 - DeliveryValve - 01-25-2011
(01-25-2011, 05:59 PM)casioqv Thanks for that info. I guess the VW/Volvo filter isn't a screw-on solution for the Mercedes, but the Baldwin is a screw-on improvement for VW/Volvo diesels! Then I can copy this mod larsalan is doing, and stock spares of just one diesel cartridge...
Yes that would be the advantage. I am not familiar with the 602, but I believe the 603 has an issue of the Baldwin filter being too tall to fit in the stock location. The 602 may have the same issue.
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RE: compatible fuel filters om617 - casioqv - 01-25-2011
(01-25-2011, 06:05 PM)DeliveryValve I am not familiar with the 602, but I believe the 603 has an issue of the Baldwin filter being too tall to fit in the stock location. The 602 may have the same issue.
I'm certain everything about the filter mount is the same between the 602/603 but I actually have a whole garage full of Volvo diesel crap, so I can just grab the Volvo filter mount and add it before the lift pump and never replace the tiny stock MB filter again.
RE: compatible fuel filters om617 - DeliveryValve - 01-25-2011
(01-25-2011, 06:08 PM)casioqv(01-25-2011, 06:05 PM)DeliveryValve I am not familiar with the 602, but I believe the 603 has an issue of the Baldwin filter being too tall to fit in the stock location. The 602 may have the same issue.
I'm certain everything about the filter mount is the same between the 602/603 but I actually have a whole garage full of Volvo diesel crap, so I can just grab the Volvo filter mount and add it before the lift pump and never replace the tiny stock MB filter again.
Well there you go.... Replace your primary with a better fuel/water separator filter.
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RE: compatible fuel filters om617 - larsalan - 01-25-2011
(01-25-2011, 05:55 PM)DeliveryValve 50mm will work, I think the units I've purchase were 45mm.
I purchased my bolts locally. I don't remember the price, but if you can't find it, let me know and I'll investigate for you.
Well, I would love some help. I don't have a drill press either so we'll see how well I can free hand it into a banjo. I'm going on a road trip on friday and will look at some other towns for a 16*1.5*
found a scrap plate to make into an adapter. It's even big enough to delete my egr. Just need some better weather.
RE: compatible fuel filters om617 - larsalan - 01-25-2011
here are some that are already banjo fashion.
http://www.pegasusautoracing.com/productdetails.asp?RecID=5088
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170512762406#ht_500wt_950
do they seem legit? That ebay one looks awful short but says it's 33.5 mm. even if it's 30mm I believe it would work.
RE: compatible fuel filters om617 - casioqv - 01-25-2011
I think those will work if they're long enough!
If the VW filter is the same dimensions as the Baldwin then perhaps you could pull a banjo nut from the junkyard from any IDI diesel VW.
Although the casting those filters mount to is thinner than the Mercedes one, so I don't know if it would be long enough. There might be many other sources of the correct banjo bolt in the junkyard though... even power steering systems often have long banjo bolts in various sizes. You'll also find 'em on some gasoline engine fuel systems.
I can't imagine free-hand drilling a banjo nut would work very well. If nothing else, I doubt a machinist would charge much to do it.
RE: compatible fuel filters om617 - DeliveryValve - 01-26-2011
(01-25-2011, 09:51 PM)larsalan here are some that are already banjo fashion.
http://www.pegasusautoracing.com/productdetails.asp?RecID=5088
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170512762406#ht_500wt_950
do they seem legit? That ebay one looks awful short but says it's 33.5 mm. even if it's 30mm I believe it would work.
I measured an extra filter head. The thickness is approximately 25mm. You have to remember the thread portion on a filter recessed a bit, so the 30mm shank would probably be on the short side and may or may not reach the filter depending how thick the gasket is. A 33.5 mm shank would be much better.
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RE: compatible fuel filters om617 - larsalan - 01-26-2011
![[Image: 3242-036.JPG]](http://www.pegasusautoracing.com/images/M/3242-036.JPG)
claims to be 32mm cost like $22![[Image: bolt.png]](http://i88.photobucket.com/albums/k176/larsalan/bolt.png)
claims to be 33mm and cost $12
I really want one made into a banjo already. Just having a hard time fining one. And I imagine that ebay one is 33mm from the bolt's top not just the shank. Look at the threads in those pics. Maybe the red one is not a actual pic of the item. The ebay pic seems to be of the actual bolt.
Is this one any good?
http://www.tubesnhoses.com/proddetail.asp?prod=EHMBB1615
looks like it's a double. And I haven't been able to order it as I am not a dealer. Though I have emailed them.
RE: compatible fuel filters om617 - larsalan - 01-26-2011
Yeah the ebay guy says the 33mm is overall length. I believe it is part 775-165S.
That has a 28mm shank. Seems to be the one I see all over and the price is about in line. I'll see if it works and let you guys know.
maybe a little less from
http://www.techna-fit.com/fuelbanjo.html
they said $3.50 + shipping but, I don't know how much that will be.
RE: compatible fuel filters om617 - larsalan - 02-15-2011
Update on that bolt I bought. It is in fact too short. So, I have ground off the hex top and am going to weld another piece of bolt onto it.
Also, one of the allen bolts holding the housing in needs to be extracted so another piece of work
RE: compatible fuel filters om617 - larsalan - 02-15-2011
Make no mistake, I am a junkyard amateur mechanic but, I bet I can tack these 2 pieces together. The harder task for me is reaming out the housing. I bought a 5/8 bit off amazon for like $7.50 but silly me I ordered one with a straight shaft. And I have no chuck that big so, will have to figure that out after I successfully make the bolt.
I also, wonder about the o rings like you mention. Not so much the top one because the top will be sealed with a washer. But what would stop fuel from leaking down around the side of the bolt? Maybe I can just cut a slot in the bolt and switch the 14mm o-ring onto th e16mm bolt.
RE: compatible fuel filters om617 - DeliveryValve - 02-16-2011
The reason to thread the filter housing is to 1) ensure the crush washer on top stays sealed. 2) effectively making it a spin on filter instead of removing the bolt. There is a possibility of fuel leaking up into the filter head, but you can use loctite to seal it. I too is concerned about leaking down into the the filter, I use a thick O-ring to take care of the that. It sits in between the top of the filter and filter head. I got a bunch from Harborfrieght in the past.
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RE: compatible fuel filters om617 - larsalan - 02-16-2011
now, I'm lost. Do you have to cut threads into the housing? I thought I was just making a 16mm version of the 14mm banjo bolt that was the stock.
RE: compatible fuel filters om617 - DeliveryValve - 02-17-2011
(02-16-2011, 05:31 PM)larsalan now, I'm lost. Do you have to cut threads into the housing? I thought I was just making a 16mm version of the 14mm banjo bolt that was the stock.
Well you don't have to, but you do have to drill out the filter housing so the new banjo will go through. To make it work, you'll need to be able to seal the top. You can probably get away using a very soft aluminum crush washer or maybe finding an o-ring that will fit nicely between the shank and housing. You'll need to do some testing to see what works.
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RE: compatible fuel filters om617 - larsalan - 03-20-2011
I think the bolt is made. Maybe a few touch-ups to add o rings. Just waiting for a spare housing from dieselboy to arrive.
2 bolts made into 1. Almost like it was machined that way
![[Image: IMG_0248.jpg]](http://i88.photobucket.com/albums/k176/larsalan/IMG_0248.jpg)
RE: compatible fuel filters om617 - ForcedInduction - 03-20-2011
How will that possibly seal at all?
Even a n o-ring would have a tough time contouring to that.
RE: compatible fuel filters om617 - larsalan - 03-20-2011
Seal at the top with just washer(s) and the bottom near the threads with an o-ring. Maybe need to cut a channel for the ring to sit in. We'll see if I can get it working. The stock setup doesn't seem as if the top is sealed with an o-ring anyway. Maybe just weld that bolt into the housing. that could seal it.
RE: compatible fuel filters om617 - larsalan - 03-20-2011
The one I bought was like 28mm. Not long enough so I welded on part of another bolt. Now must be like 38-46mm dunno.
As for the second part I'll have to see when the my extra housing arrives. But I think close will be good enough for the holes. There should be some room for oil to flow around in the housing till it can flow into the holes. Does not need to be lined up directly, I think.
RE: compatible fuel filters om617 - larsalan - 03-24-2011
(03-20-2011, 07:13 PM)ForcedInduction How will that possibly seal at all?
I tried to cut a seat in there and fiddle with some o-rings. Did not work, fuel pumped out the top.
At least the relocating plate is made.
Think I will need to try and thread a m16 x 1.5mm like this.
![[Image: ZZZ3.jpg]](http://i242.photobucket.com/albums/ff279/Diesel911/ZZZ3.jpg)
To seal the bottom and maybe some o-rings/crush washers will seal the top of a factory bolt.
Just need to get the bolt
hmm
DeliveryValve Wrote:
50mm will work, I think the units I've purchase were 45mm.
I purchased my bolts locally. I don't remember the price, but if you can't find it, let me know and I'll investigate for you.
RE: compatible fuel filters om617 - larsalan - 03-30-2011
You are so much better and faster at this than I
I am still needing to find a starting bolt. That sh!t I ordered before was too short and too thin walled.
RE: compatible fuel filters om617 - DeliveryValve - 03-30-2011
(03-30-2011, 03:50 PM)larsalan You are so much better and faster at this than I
I am still needing to find a starting bolt. That sh!t I ordered before was too short and too thin walled.
larsalan asked me to check, but I haven't been able to get away to get a bolt for him. I may have some time tomorrow.
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RE: compatible fuel filters om617 - DeliveryValve - 04-02-2011
(04-01-2011, 05:54 PM)smoke026 OK Im all done..
...
Great job. Looks good!
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RE: compatible fuel filters om617 - DeliveryValve - 04-02-2011
The original Mercedes filter dose not have any O-ring sealing the filter. The o-ring is on the Banjo at the bottom of the filter head. Some guys sealed their new banjo to the filter head with a thread locker. I did not do this, so I just use a thick O-ring to do the sealing.
I think it's just preference. It should be OK either way.
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RE: compatible fuel filters om617 - larsalan - 04-02-2011
look at where unfiltered fuel enters the whole unit. It pushes onto the top of the filter and cannot squeeze out the sides cause there is that rubber gasket. But, the unfiltered fuel could flow up into the upper part where clean fuel is meant to be. Get it? Like before the dirty fuel goes down into the filter it could go directly up next to the shaft of the bolt if it was not sealed.