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Old 12-12-2019, 09:31 AM   #18
J and M Machine
Senior Member
 
Join Date: Oct 2010
Location: 40 Mt.Vickery Rd. Southborough,MA 508-460-0733
Posts: 352
Default Re: That "Opportunity Knocks" Engine

Quote:
Originally Posted by Russ/40 View Post
It's back, the disastrous opportunity I couldn't pass up.

Sent the block to have it cleaned and Mag'd because it looked so good on top end. Well it failed me again, but, not so bad. Attached photos of the crack found. Now from every other crack I've seen posted here, it looks like a perfect candidate for the JB Weld approach. Not being a pressurized system, and it looks to be away from being a fatal crack. What say there barners? What would you do?
It is far from a fatal crack but one that will keep growing if not repaired properly. It's common for Model A' engines to crack in that spot.
I would also recommend pressure testing as there is a casting wire right above your crack that will also leak water as well. If you look close you see a small circle. This will leak also. To fix it permenantly, take it to Lock n stitch or someone who can do metal stitching properly.
I have provided examples of the before and after of the same crack in same location.

http://www.jandm-machine.com/metalStitching.html
Attached Images
File Type: jpg IMG_3468.JPG (52.8 KB, 97 views)
File Type: jpg IMG_7917.JPG (53.5 KB, 100 views)
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