Leaking petrol

[pingis]

I recently replaced the Moggy's fuel tank. After that the fuel pump has gone wild, ticking faster that ever and when I had a look at the tank I noticed a tiny leak where the pipe is connected to the tank. I suppose that's what the pump was trying to tell me. Probably it was sucking a lot of air instead of petrol. I have tried to tighten the pipe but that doesn't seem to make a differance. Now I am thinking of two ways to solve this - either put a rubber ring between the tank and pipe and tighten it lighter than now or buy a tube of some kind of sealant and try to use as little as possible to avoid blocking the fuel line completely. Has anyone got a better solution?

[RobMoore]

I had a leak in the same place, on inspection I found that the fitment on the end of the pipe had become detatched (they are soldered/brazed on).
You can either re-braze it on.
Or as I did use petropatch putty to seal it up, I did this as a temporary measure till my new fuel line arrived and its been good for the past two weeks so I shall leave mine as is now even though I now have a new line to fit.

[bmcecosse]

As above - best inspect it carefully - you don't want to risk any damage to that new tank.

[pingis]

Thanks for the tips. I'll have to see if there is anything similar to petropatch putty sold here in Sweden. I do have a gas tube for soldering but I don't think I have the skills to make it properly. I'll wait a few days before I do anything. I took the Moggy for the Swedish MOT inspection yesterday and they noticed the rear break hose looked like it was made of Bassett's Liquorice. I have ordered a new hose from the UK so I might as well take care of both problems when I am under the car fitting the brake hose.

[crossword]

Might be worth removing the connection at the tank & inspecting it & the tank outlet for any damage or dirt . Thinking that it is a new tank , maybe the outlet has paint in it perhaps not permitting the ' cone ' fittihg to seal correctly . Last thought , how old and in what condition is the pipe near the fitting ? you may have weakened it when removing it . Good luck Andy

[pingis]

The tank was bought second hand from a man who had given up restoring his Moggy after a few decades. So, all parts are 53 years old and as far as I have seen everything looks absolutely okay. I will have a closer look at both the end of the pipe and see what it looks like in the hole. Before I fitted the "new" tank I brushed it and painted it. I don't think I spilled any paint in the connection hole but I will have a look to be on the safe side.