W202 C250TD OM605 leaking fuel!

[philhoward]

Why is it a simple job turns into a nightmare?

Yesterday replaced the glow plugs - bit of a pig of a job but I've known worse. This morning was fitting a set of replacement injectors I'd rebuilt with new nozzles and it was going pretty well. Took a while to start (as I expected) but as I left it sat on the drive warming up (and defrosting!) saw a constant drip of diesel on the floor which looks to be coming from the lift pump/shut off valve? I've done a Google and it looks like a prime suspect is the o rings to the shut off valve - is this always the case or could it be leaking from one of the clear pipes which don't all seem that solidly in place? It apparently had "all" the o rings replaced about a year ago before I bought it (have an MB receipt somewhere) but the same searching shows that MB don't sell the ones for the shut off valve, just the whole valve so is it safe to assume these won't have been touched?

Now have a car that drips diesel about one drip every 5-10 seconds when it was running - turned it off to investigate further and now it won't start. Battery now on charge

Any help and/or advice would be most welcome! It started off a really good week of fiddling after I replaced the heater motor brushes yesterday

 

[neilrr]

Unless you can pinpoint the spot it's leaking from it could be quite a number of things.

Happy reading!

http://www.mbclub.co.uk/forums/search.php?searchid=8103500

http://www.mbclub.co.uk/forums/search.php?searchid=8103504

 

[philhoward]

Thanks for the search results links - some of which I'd already looked at but a few I hadn't.

No closer to pinpointing the leak point but having a play with the clips (are they meant to be fully depressed or "unclipped"?) and running it up to temp seems to have stopped the leak.

Downside is that the recon injectors haven't cured the knocking..but that's for another day now.