Broken Rod Bolt
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Joined: Nov 2006
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rod help
i have a 302 all rod bearings were copper and replaced em but i broke one of the studs do u know a way i can fix this one rod myself without pulling the engine. thanks
Last edited by Torque1st; Nov 27, 2006 at 12:14 AM. Reason: moved from 3+ yr old thread.
Hotshot
Joined: May 2004
Posts: 12,170
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From: The hills of No. Calif.
Technically, when the rod bolts are replaced the rods should be resized. This of course requires complete disassembly of the engine. This might be a little iffy but should work in a pinch. I would try to carefully remove the broken bolt (without damaging the rod journal on the crank) and insert a new bolt, pulling it into place with the nut.
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
I've changed out a whole set with an assembled 5.0. Stock bolts to ARP's. Works fine without resizing the rod. I don't think I'd try it with stock bolts, you need to torque the bolt a couple times to get it seated all the way into the rod. Stock bolts are not very strong, as you've already found out. They've always been the weak link in a 302.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by EPNCSU2006
Were you able to measure the roundness of the rod afterwards?
It would have gone longer had that one cylinder wall not cracked and leaked coolant into the oil. This wasn't a high dollar short block either, the short block was built by City Motor Supply in Dallas Tx. Cost me $350 (exchange) Bored 40 over and had Silvolite Hypereutectic pistons.
Last edited by baddad457; Nov 28, 2006 at 06:12 AM.
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