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806 Common Rail Diesel Leak problems - HELP!!!

Right, I`m at my wits ends with this car - 1999 Peugeot 806 TDI!! I have now had the pipe from the pump to the rail tighten that many times, each time being told by the garage that it won`t leak again but it does!! The last time it was "fixed" was about 2 months ago, 4 prior to that and about the same before that. Each time, the leak occurs at the common rail end (as opposed to the pump end) and have had a new pipe fitted twice. The pipe has been put on properly (by a diesel specialist!) and tightened correctly!! I really don`t see an end to this unless it`s welded on at that end!! Why should it suddendly start leakinf after x number of months. There`s no real excess amount of vibration. Is there ant type of diesel "locking" thread compound or similar? I appreciate there`s a lot of pressure in these pumps and wondered if this is a commom problem in these cars.I really don`t think the leak`s from the common rail itself as it "appears" to be leaking at the union with the pipe. HELP PLEASE!!!

Reply to
eevoob
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Sounds like the sealing ring at the end of the pipe is giving the problem,may be there is some one out there that has had this problem and got it sorted a easy way. and not put it in to a garage and get charged pounds and pounds, for just a small job,

Reply to
Chris

I do not think this is a common problem. My 1999 406 HDI has done 124,000 miles and never leaked and I have two friends with HDIs who likewise have had no problems. I do have a recollection of a recall early on to do with a possibility of a diesel leak but cannot be sure whether that was the 406 or my previous car which was a non turbo 405. A recall is likely to apply to all HDIs I would have thought, so it might be worth checking if there was one for this problem and, if so, whether yours was ever done.

Other than that, Chris's suggestion sounds good or is there a possibility of a hairline crack?

Reply to
Keith W

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