Gasoline Proof Epoxy???

[Petzschler]

totally got rid of the TITANIC SIZED pushrod humps on the intake port of a "302" cyl.head, i was about to
press in copper sleeves into the pushrod guide holes when i realized that i need some Gasoline Proof Epoxy..
anybody have any good recomendations on what to get? TIA.

 

[66dartgt]

I'd think JB weld should be fine.

 

[Petzschler]

i got lots of JB Weld... is gasoline proof tho? google cant give me an answer lol.

 

[66dartgt]

Well, you can always take the bull by the horns ! Mix up two blobs of jb weld, let it cure for several days at room temp, then put one blob in a closed jar of gas for a few days and leave it to see what happens. Compare it to the unexposed blob and see if it changed somehow, either it will soften or dissolve if it cant hack it.

You could also contact an outfit that does head work and ask them -

Speaking from experience - I have an old 4 bbl 273 intake that I resurrected. The thermostat flange had been corroded so bad that someone put JB weld on it to fill in the pits. I soaked that sucker in solvent, and acidic and then basic water solutions, nothing would touch that stuff. I ended up milling the flange to remove the crap - and clean up the surface again. Its pretty tough stuff.

 

[Petzschler]

good point, i'll give that a shot.
thanks much!

 

[rbdart]

jb works.. i've used it or get a good quality epoxy from auto store

 

[Petzschler]

got some soaking in gasoline and ethanol right now, gonna leave em' in there for a week and see what happens.