F355GTS Posted June 14, 2003 Share Posted June 14, 2003 Car is '98 SLR with in tank pump. I noticed a while ago a strong smell of Petrol in the garage when the car has been left there for a few days. During a dedion refit I took to oportunity to remove the tank and replace the seals for pump and sender and also to check all connections to tank, pump and filter. Despite all this there is still a strong smell of petrol around the rear offside wheel arch. No leak is visible ie no drips or damp areas that I can see, only thing that may be contributing is that the plate the pump is mounted on appears to be slightly distorted from being overtightened Anybody know a good way to find where the leak is? yes I thought about the lighted match perhaps something a tad safer Mark Link to comment Share on other sites More sharing options...
Tony C Posted June 14, 2003 Share Posted June 14, 2003 Really clean and dry-off the suspected area(s) and apply talcum powder very sparingly. It sounds like you've got a seep rather than a run. The talcum should show the point source of the leak. Makes the car smell nice too. Good luck, Tony BRG SV 😬 aka Bug Killer Link to comment Share on other sites More sharing options...
Foxy Smith Posted June 14, 2003 Share Posted June 14, 2003 Match ? Link to comment Share on other sites More sharing options...
Tony Whitley Posted June 14, 2003 Share Posted June 14, 2003 There's always someone... 😬 Link to comment Share on other sites More sharing options...
ruff seven Posted June 14, 2003 Share Posted June 14, 2003 Ive had a couple of leaks, that ive found on bag or foam filled tanks and its always around the breather. Link to comment Share on other sites More sharing options...
Chelspeed Posted June 14, 2003 Share Posted June 14, 2003 Can you pressurise the tank at all? A few psi from an air line into a breather pipe may turn a one drop a day impossible to find leak into a dribble you can see. Link to comment Share on other sites More sharing options...
F355GTS Posted June 14, 2003 Author Share Posted June 14, 2003 Thanks for the advice guys, Tony I'd thought about the talc idea but wondered if it would work I'll give it a try Chelspeed I've got air so will give it a go ta Mark Link to comment Share on other sites More sharing options...
Rob Walker Posted June 15, 2003 Share Posted June 15, 2003 If the mounting face for the pump is distorted through overtightening you will never get a good seal. Straighten the mounting face using a G clamp and two flat peices of steel. The when re fitting the pump only use the shaft of the screwdriver to tighten this will prevent you overtigthening. IMO this is a very badly designed mounting, I shudder to think what may happen in the event of a rear accident. Edited by - Rob walker on 15 Jun 2003 09:07:19 Link to comment Share on other sites More sharing options...
Sheds Moderator Posted June 18, 2003 Share Posted June 18, 2003 If you have air then use a blowgun to get the area REALLY clean. Any seeps will then be obvious. This is what the trade do, and it works. erm, I suggest putting out your MonteCristo first. Link to comment Share on other sites More sharing options...
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