Remove brazed on parts

[John Illinois]

I am trying to remove the radius rod ball cup on an oil pan. I drilled out the rivets and got it cherry red with a rose bud torch. I could not pull or hammer
it lose. Has anyone done this with a brazed part? Does the old brazing crystalize and become harder to melt?

John

[Jerry VanOoteghem]

Miss a rivet maybe?

[Allan]

The problem is likely not enough heat over a wide enough area. If the rivets are gone, suspend the pan so the mounting can fall off, and heat, heat, heat. Your rosebud may well not have a wide enough play for the job. Replacing the part will pose the same problem. Brazing around the perimeter and around the rivets may be the best you can do.
I have tried to remove a pan ear and had the same problem.

Allan from down under.

[John Illinois]

Thanks Allan. I think not enough heat is the problem. I now have a NOS socket and there is a strip of steel down the center and it is surrounded by hollow spaces and covered by the socket in the middle. Not much heat transfer. I plan on cutting and grinding much of this away and try it again. It seems to me Ford may have brazed the pan in an oven.

I will get the new one on somehow if I succeed.

John

[DanTreace]

John

This is how Ford did the pan brazing in 1915, of course the process must have changed over the years for higher production rates

IMG_7218 (500x390) - Copy.jpg (128.65 KiB) Viewed 1972 times

[Joe Bell]

I had better luck heating from the inside, metal is thinner.