Quote:
Originally Posted by BRENT in 10-uh-C
The issue is that the tank bracket is riveted to the tank and also thru a reinforcing plate. What we have found when restoring these is the tank will have stress cracks radiating out from the rivet holes. What we generally do is remove the bracket, remove the reinforcing plate and weld the cracks and holes in the tank and plate. Then redrill the holes and rivet the bracket onto the tank again. Otherwise the sealer will pull loose as the bracket is vibrated. Then the weep starts again. Even epoxies (i.e.: JB Weld, etc.) can break loose over time.
FWIW, if the repair to the tank is done correctly, -and if a driver is smart about entering the vehicle, it will last forever.
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This similar to what we found on my 29 Sport Coupe 15 years ago.
After removing tank from car, striping paint in the area of clamp mounting then cleaning, we found an inch long stress crack
near the edge of the bracket.
Crack is not under the solder that holds the bracket or radiating from a rivet mounting hole.
Crack was / is an inch away from the edge of closest solder holding the bracket.
After drilling small hole at each end of the crack, a brass patch was soldered over the crack and bracket was re-soldered.
Then we installed the 1931 steering column bracket and removed the lower 1/2 of the original steering column bracket and the rubber piece,
to remove stress on tank.
It has been 15 years and 20,000 miles ... no leaks.