New here, need tips
New here, need tips
Hi, guys.
Just thought I'd introduce myself and tell alittle about the car I just acquired and hopefully get some tips or corrections lol. Not new to the car scene at all but I am sort of new to the mercedes side of things. I know this will be a long post but please bare with me as I want to give as much info as I can so i can recieve the best assistance.
Just recently acquired a 85 300sd. The car was given to my wife and myself. We are a young couple with a 1 year old. We had to sell my wifes new car b/c of a recent major change in salary.(damn economy) any way, a very close family member gave me this car and an 83 300d parts car.
The 300sd was in what I would call a pretty neglected state. (hey it was free right) The oil was allways changed at correct intervals but I think that was about it. The odometer reads 83K and is broken. The PO said it had not worked the 7 years he had owned. Figured he had put around 250k on it himself. So I am going to guess prolly at least 350 to 400K on this car. When I got it was EXTREMLY sluggish, i mean 0-60 in like 25 seconds. So on to the list of what I have completed so far.
First off Oil change
Changed fuel filters & air(PO had NEVER in 7 years changed the spin on filter, Didn't know it was there)
Cleaned banjo bolt and hooked up and adjusted the alda all the way out.
New battery
used the alternator from the 300d.mine wasn't charging
glow plug relay from 300d (apparently thats y the alt wasn't charging)
Fixed A/C
Cleaned out the in tank fuel screen
adjusted throttle linkage and bowden cable
picked up some decent seats and floormats from local pull a part
Now on to my questions
My 0-60 time is now 16-17 seconds VAST improvement. However it still feels really sluggish up untill the turbo spools and then it is O.K. With the alda adjusted all the way out and revving the engine from idle to about 3.5k RPM I get a small puff of black smoke from the exhaust. Does this mean that I could possibly still be underfueled and I need to completly remove the ALDA or would that even help? Now i know that a plume of smoke is not what u want but with it all the out shouldn't I get more than a little puff?
Plans for the near future.
swap the injectors from the parts car. (it only had 145k when wrecked) so lower mileage injectors
Need to do a valve adjustment. (Hard to do b/c of my work schedule and my wifes school schedule/daycare, can't afford for the car to be down more than a few hours)
Thanks for putting up with the long post. Any tips or criticism I am open.
You could maybe try removing the alda completely, and definitely want to adjust your boost up a little bit also, I think12psi is about where it should be for the amount of fuel your pump is capable of putting out. Another thing that will make a pretty noticeable difference is removing one or both of the mufflers and putting straight sections of pipe in their place. Other than that you seem to be pretty much on top of stuff dude, keep up the good 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?
So....how big do you want to go?
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?
(10-18-2012, 08:04 AM)Simpler=Better So....how big do you want to go?
(10-18-2012, 08:04 AM)Simpler=Better So....how big do you want to go?
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?
Check out the cheap tricks in my sig. If you have the stock merc muffler, don't cut it out-you won't really notice much vs your wife not liking the noise (presumambly)
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?
(10-18-2012, 11:21 AM)Simpler=Better Check out the cheap tricks in my sig. If you have the stock merc muffler, don't cut it out-you won't really notice much vs your wife not liking the noise (presumambly)
(10-18-2012, 11:21 AM)Simpler=Better Check out the cheap tricks in my sig. If you have the stock merc muffler, don't cut it out-you won't really notice much vs your wife not liking the noise (presumambly)
Well, straight pipe sounds cool and I think an air filter modification maybe adds to the woosh. I do find my car a little loud for talking on the cell but, I ought to be driving and not talking anyway
Maybe you can start a project thread and add some pics?
Decided I would revive this and let u guys know where the merc is right now.
I replaced the resonators with a section of pipe (things were literally falling apart inside) I left the muffler alone and now its got a little tone to it but not much.
Pulled fuel injectors from my parts car, reads 240k on the odometer so they're not new but they've got A LOT less miles than my old ones.
Also done the valve adjustment.
After all this I don't think It can run any better. 0-60 is in the 15-16 second range. and I'm actually not scared to pass someone on the hwy anymore. lol
I clamped off the line that runs to wastegate to see if I noticed any improvement (never installed the boost gauge). It wasn't any faster with the line clamped at all. So I'm going to assume that my boost pressure is at an acceptable level.
Oh, and for anyone who says the seats are not interchangable b/w models, your wrong.
I searched and searched to find out if I could swap in some w116 seats into my w126(my junkyard seats fell apart, Had some free w116 seats in perfect shape) Every thread I found said NO no NO no it won't work (mb world) what a joke of a site. Any way. they will fit. just take the seats out of the car and unbolt the brackets from them. Then bolt your bracket back to the seat you want. It all lined up perfect. I even checked some w123 seats I had and they line up as well.
(12-16-2012, 08:20 PM)jandamerc Decided I would revive this and let u guys know where the merc is right now.
I replaced the resonators with a section of pipe (things were literally falling apart inside) I left the muffler alone and now its got a little tone to it but not much.
Pulled fuel injectors from my parts car, reads 240k on the odometer so they're not new but they've got A LOT less miles than my old ones.
Also done the valve adjustment.
After all this I don't think It can run any better. 0-60 is in the 15-16 second range. and I'm actually not scared to pass someone on the hwy anymore. lol
I clamped off the line that runs to wastegate to see if I noticed any improvement (never installed the boost gauge). It wasn't any faster with the line clamped at all. So I'm going to assume that my boost pressure is at an acceptable level.
Oh, and for anyone who says the seats are not interchangable b/w models, your wrong.
I searched and searched to find out if I could swap in some w116 seats into my w126(my junkyard seats fell apart, Had some free w116 seats in perfect shape) Every thread I found said NO no NO no it won't work (mb world) what a joke of a site. Any way. they will fit. just take the seats out of the car and unbolt the brackets from them. Then bolt your bracket back to the seat you want. It all lined up perfect. I even checked some w123 seats I had and they line up 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?
(12-16-2012, 08:20 PM)jandamerc Decided I would revive this and let u guys know where the merc is right now.
I replaced the resonators with a section of pipe (things were literally falling apart inside) I left the muffler alone and now its got a little tone to it but not much.
Pulled fuel injectors from my parts car, reads 240k on the odometer so they're not new but they've got A LOT less miles than my old ones.
Also done the valve adjustment.
After all this I don't think It can run any better. 0-60 is in the 15-16 second range. and I'm actually not scared to pass someone on the hwy anymore. lol
I clamped off the line that runs to wastegate to see if I noticed any improvement (never installed the boost gauge). It wasn't any faster with the line clamped at all. So I'm going to assume that my boost pressure is at an acceptable level.
Oh, and for anyone who says the seats are not interchangable b/w models, your wrong.
I searched and searched to find out if I could swap in some w116 seats into my w126(my junkyard seats fell apart, Had some free w116 seats in perfect shape) Every thread I found said NO no NO no it won't work (mb world) what a joke of a site. Any way. they will fit. just take the seats out of the car and unbolt the brackets from them. Then bolt your bracket back to the seat you want. It all lined up perfect. I even checked some w123 seats I had and they line up 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?