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hame1 11-27-2007 12:26 PM

fuel leak
 
1 Attachment(s)
My 93 300D is leaking fuel out of I think it is the fuel pump. Is there a good way to pinpoint where it is leaking from? and is there any special tools i might need?

TMAllison 11-27-2007 01:39 PM

Guessing you have a leaky #1 delivery valve seal but is so dirty is impossible to say for certain.

Spray it down with carb or brake cleaner to clean it and then look again after idling 10 minutes to confirm.

If it is the DV you will need a special MB splined socket to remove the DV holder.

hame1 11-27-2007 04:11 PM

thanks. where is the #1 delivery valve in the picture?

ForcedInduction 11-27-2007 04:30 PM

It's the round device the injection lines attach to that has 30 splines on the outside of it.

There are o-rings under them that can leak from age.


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