Author Topic: Fuel injection pump air filter  (Read 3614 times)

fred

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Fuel injection pump air filter
« on: May 29, 2010, 03:14:10 »
What is the best way to remove and clean the fuel injector pump air filter.

stickandrudderman

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Re: Fuel injection pump air filter
« Reply #1 on: May 29, 2010, 08:33:24 »
AFAIK it's not possible.
The PAPER filter is sealed inside the metal housing and the whole thing must be replaced.
I did see on Jaj's recent post about FIP restoration that th photos showed a reconditioned filter, but it doesn't show the method and it's probably easier to just buy a new one anyway, even if they re a little pricey.

fred

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Re: Fuel injection pump air filter
« Reply #2 on: May 29, 2010, 13:39:48 »
Thank you Stick,

ja17

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Re: Fuel injection pump air filter
« Reply #3 on: May 30, 2010, 12:50:20 »

Hello,

Yes the fuel injection pump fiter is meant to be changed as a complete sealed unit. You can test your old one by removing it and blowing through it to see if it is clogged. A skinny 19mm or 22mm wrench(size depending on year) will be needed to remove it.
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

hauser

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Re: Fuel injection pump air filter
« Reply #4 on: May 30, 2010, 19:00:56 »
I just changed mine a couple weeks ago.  I got it from the Classic Center.

Shvegel

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Re: Fuel injection pump air filter
« Reply #5 on: June 17, 2010, 07:50:55 »
As a sidenote When I rebuilt the engine in my car(Froze up from 27 years of sitting) I replaced mine with the shiny looking one from a spare engine I bought for parts. It turns out when someone rebuilt the injection pump they re-plated the filter as well. I struggled for a year to sort out an odd warm up running problem only to find the filter had disintegrated in the plating process and the metal disc on top of the filter was banging around in the housing occasionally blocking the secondary air from getting into the engine. That was a bugger to find.