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197 240D injector pump oil

1158 Views 4 Replies 3 Participants Last post by  mercmad
I have a 1973 240 D. There is a red cap on the diesel injector marked "Oel". What kind of oil goes in there? Thanks
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Ordinary motor oil.

As I recall, there is a threaded plug below the oel cap which you remove, then add oil through the top until it runs out the hole. It only takes a small amount.
I doubt if the pump oil is related, but the pump oil gets contaminated with fuel after a while, so it doesn't hurt to get some fresh oil in there.

Are you having a starting problem?

Describe what you mean when you say you don't get much fuel to the injectors.
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