Author Topic: setting the oil level in a 280SE injection pump  (Read 3177 times)

perry113

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setting the oil level in a 280SE injection pump
« on: September 27, 2010, 22:37:15 »
This weekend may in fact be the moment of truth whereby I will be putting fuel and spark in project W111 280SE 2.8. This will be its first test for life as a six.  ::)

One of my concerns prior to start up is setting the oil level in the injection pump. I had the injection pump solenoid off of the pump which caused all of the oil to run out. Unlike my 230SL there is no dipstick on the pump.  ???

I was told by an old retired Benz mechanic that the oil from the engine would circulate to the pump once its started. Can anyone verify this. The shop manual does not point out my concern.

Any and all help is always appreciated.  ;D

Cheers
Peter
Peter Perry
1970 911T Bahia Red
1972 911T Albert Blau
1963 220seb coupe barn
1965 230SL Light Ivory automatic
1966 230SL Havana Brown 4 speed Barn Find
1970 280SE living 3.5 donor car

ja17

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Re: setting the oil level in a 280SE injection pump
« Reply #1 on: September 28, 2010, 03:41:57 »
Hello Peter,

Nice car, I always loved those W111 coupes.

Yes,engine  oil does circulate in and out of these later IPs.   That is as long as that tiny metal oil supply line between the IP and the engine is not clogged.  I always dump some oil in the IP just to make sure everything is lubed up. No need to worry about oil level, since any excess will drain  off into the engine block. About a pint will keep you out of trouble. You can add it by removing the barometric compensator or the WRD.
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