Author Topic: Fuel injection system  (Read 4562 times)

ben.king

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Fuel injection system
« on: July 21, 2014, 06:40:41 »
im Just in process of putting back on road a 1967 250sl . Having serious difficulty getting the engine set up after a major re-build and after checking out all the electrics it seems pretty certain that it's a problem with the fuel injectors/injection pump. I've checked the injectors and replaced a couple so it seems to be the injection pump. I'm getting fuel to 4,5,&6 but very poor supply on numbers 1 & 3 and nothing on number 2. Anybody with any experience of similar problems or better still any solutions - getting desperate and summer is running out!!

Fintail

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Re: Fuel injection system
« Reply #1 on: July 21, 2014, 07:01:30 »
Hi Ben I do home visits to set up injection systems and engine, give me a call 0789107024

Regards John

hkollan

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Re: Fuel injection system
« Reply #2 on: July 21, 2014, 07:26:54 »
Hello,

Did you chek that the fuel lines fom the pump to injectors are not clogged?
Can happen if you don't plug them before the zinc plating process, if you had that done as part of your major rebuild.
This can of course also  happen if they are just exposed to the elements, or debris enters the fine lines.

Hans

« Last Edit: July 21, 2014, 09:26:21 by hkollan »
Hans K, Cuenca, Spain
1968 280 SL 387 Blue met., parchment leather
1971 280 SL 462 Beige met, Brown leather
1968 280 SL 180 Silver, Red leather
1964 300 SE Lang 040 Black w/Red leather
1985 500 SL 735 Astral Silver w/Black leather
1987 560 SEC 199 Black met., Black leather

ja17

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Re: Fuel injection system
« Reply #3 on: July 21, 2014, 13:57:30 »
Most likely some pistons are stuck in your IP.  When this happens the rack in the IP is also stuck. To confirm this remove the small round cover on the front end of the IP and check to see if the rack moves freely. If not get back with us and we will guide you through the fix.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

ben.king

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Re: Fuel injection system
« Reply #4 on: July 21, 2014, 14:56:21 »
hi John thanks for the info ive been trying to call you but the number keeps failing , have you given me the right number ,and where abouts are you based ?
Ben

Fintail

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Re: Fuel injection system
« Reply #5 on: July 21, 2014, 18:36:05 »
Hi Ben
Great a mental block on my own phone 07891070248 based in Shropshire but all over UK at weekends attending our poor running cars

Regards

John