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Old 10-19-2022, 07:08 PM   #18
Rob Doe
Senior Member
 
Join Date: Apr 2021
Location: Central Illinois
Posts: 507
Default Re: Frame Sag, How much acceptable?

Quote:
Originally Posted by BRENT in 10-uh-C View Post
Wow, that was a trip down memory lane. Topic was from over 12 years ago however the method remains the same. Thanks for sharing.
Brent, in your pictures from the MAFCA threads, you had four places to repair/straighten.

I assume you used a rosebud acetylene torch?

Did you heat on the inside, flame focused on the bottom rail?
Did you measure the general temps of the area with an IR temp gun?
Were the temps 230 ish? Or?

Did this require multiple iterations of heat to get the frame straight? If so, how long did you let things cool before putting the string back on and testing with the blocks?

I've already learned a ton from this. 3x rivet gun, heat the rivet bright red/orange from top until red on the bottom, then buck.

Thx.
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