Welding Tips and Tricks

New to the forumn but reader of the site for quite awhile. Great stuff.

Here's my problem to solve.

I have a cast aluminum head the was originally fitted with bronze seats. In it previous life before I aquired it the bronze seats had been removed and hardened seats put back in. Because of the design of the head hardened seats are not a good thing but I will not get into that. The original seats were poured. There was a recess that was cut in the head that formed what you may call a tang/shoulder to retain the seat while going through heat cycles.

My first thought are to repour the seat with cast aluminum bronze. Upon thinking a little more I was wondering if I can flow aluminum bronze rod with my tig and just build it up to create a new seat? Am I way off base??

you cant weld aluminum with aluminum bronze. i just cant picture it working.

let us know if it does,

thanks for posting,

jody

I don't want to bond the two together, I just basically want to fill the pocket with the AlBr to create the seat. I guess I will give it a try tomorrow since my rods just got here from the UPS truck.

I'm curious what happened.

Harder seats are generally added to aluminum heads but normally machined to accept seats matched to the type of valve and use.