vitesse fuel tank leakage

[chalkyboy]

My car a Vitesse 2Litre Mk2   - Strong smell of petrol when I open the boot but no visible signs as far as can be seen with the tank in situ.  No wetness in the boot or on the garage floor below.  All tank connections & fuel lines etc were renewed during the restoration and all are sound.   But fuel level has dropped with vehicle not currently being used. Before I remove the tank any advice as to a proven repair source would be welcome. 

[Paul H]

I used https://www.frost.co.uk/por15-car-bike-motorcyle-fuel-tank-repair-sealer-473ml/?

Follow the instructions to the letter 

worked for me 

Paul

 

[Pete Lewis]

do check the reserve/suction tube where it exits the top of the tank 

under the sleeve nut/ reserve lever  is a simple olive to 'seal' the tube   often is a smell leaker as is the short hose from it , check both 

Pete

[chalkyboy]

1 hour ago, chalkyboy said:

My car a Vitesse 2Litre Mk2   - Strong smell of petrol when I open the boot but no visible signs as far as can be seen with the tank in situ.  No wetness in the boot or on the garage floor below.  All tank connections & fuel lines etc were renewed during the restoration and all are sound.   But fuel level has dropped with vehicle not currently being used. Before I remove the tank any advice as to a proven repair source would be welcome. 

As a new boy I'm not sure where/how to reply to individual posts. So thanks to Pete & Paul for your comments.

 Paul, some years ago in the early part of my restoration I did use the Frost product of the time for sealing fuel tanks.  However,  I have heard since that this product was not proof against ethanol and there was a risk of a reaction with the sealant.  I've done very little mileage since so I'm reluctant to apply a another sealant over the top of one that may not be secure.  Thanks for your comments.

Pete, thanks for your comments. The workshop manual doesn't show the detail of the top pipe entry and I can't quite see how to remove it to check on the sealing arrangement. I can just see a nut under the reserve lever - is this the means of removal of the lever and pipe assy? 

[Pete Lewis]

yes the nut is just a normal pipe sleeve nut  it may just want a nip  to get the tube out to replace the olive needs the tank out

any sized olive works or a cut off bit of fuel pipe hose 

https://www.canleyclassics.com/?catalogue=triumph-vitesse&diagram=triumph-vitesse-exhaust-and-petrol-systems