Quote:
Originally Posted by Diseasel300
Which version of the secondary fuel filter do you have? Is it the one with the 1 O-ring and crush washer, or 2 O-rings on the bolt? Have you replaced the O-rings on the bolt?
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Quote:
Originally Posted by spock505
Check tank vent is clear, mine caused huge problems with pressure build up forcing fuel out over the diff housing.
Removed valve which appeared to be working but stuck, no problems since.
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Quote:
Originally Posted by spock505
That sounds fine but might be worth checking to eliminate altogether, on my 124 the valve had a small rubber bot which made it look like a water drain.
Looking at various online diagrams you could find it vents into a breather system, US versions are probably a different layout
I always remember seeing this photo, incredible how the engine kept on running.
edit, there's a description of vent location from above pic
fuel issues 300D 1984 - Mercedes-Benz Forum |
Yes, that is definitely not a fun prospect.
I haven't dealt with the clear lines but I haven't seen many (if any) instances of leaking, in the archives.