The Ford Barn - View Single Post - I found a crack in an odd place while pressure testing

Russ/40 · 08-19-2020, 09:46 AM

I would not stitch an area less than 1/8" thick. Access is great, so I would drill the crack ends and "v" the crack slightly then your choice of proven epoxy like Belzona or JB. That will likely hold longer than you. Can be repeated in the distant future, though I would not expect it to ever be a problem again. Looks to have stayed away from the exhaust port...your lucky!

After reading the above post, just my opinion, but I would avoid a heated solution. I have seen braze jobs crack on cooling. Especially thin areas that cool pretty fast.

08-19-2020, 09:46 AM	#12
Russ/40 Senior Member Join Date: May 2010 Location: Santee, California Posts: 3,505	Re: I found a crack in an odd place while pressure testing I would not stitch an area less than 1/8" thick. Access is great, so I would drill the crack ends and "v" the crack slightly then your choice of proven epoxy like Belzona or JB. That will likely hold longer than you. Can be repeated in the distant future, though I would not expect it to ever be a problem again. Looks to have stayed away from the exhaust port...your lucky! After reading the above post, just my opinion, but I would avoid a heated solution. I have seen braze jobs crack on cooling. Especially thin areas that cool pretty fast.