Cracked Block Repair
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Elder User
Joined: Jun 2012
Posts: 536
Likes: 2
From: N. Va.
Cracked Block Repair
I remember seeing a thread about 2yrs ago when I joined FTE. The guy had a 7.3L PSD with a crack in the block and was looking for ways to repair it. Not sure what he ended up doing.
Anyway, I happen to come across a website today that shows how they repair a block without welding. They drill holes the length of the crack and install pins then grind it flush and pressure test.
This may be common knowledge to you guys but I thought I would share in case someone down the road is searching for options.
Here is there website: Look at the example labeled "Custom truck with cracked 5.9 block" That looks incredible!
Repair Examples
Here's what they did on a 5.9 Cummins
Anyway, I happen to come across a website today that shows how they repair a block without welding. They drill holes the length of the crack and install pins then grind it flush and pressure test.
This may be common knowledge to you guys but I thought I would share in case someone down the road is searching for options.
Here is there website: Look at the example labeled "Custom truck with cracked 5.9 block" That looks incredible!
Repair Examples
Here's what they did on a 5.9 Cummins
Lead Driver
Joined: Feb 2000
Posts: 5,374
Likes: 46
From: Palm Bay, Florida
6 years ago we rotiseree restored our 1965 Mustang K Code GT Convertible.
During the rebuild of THE original VIN stamped engine a long crack was found in the rear of the block (behind where the flywheel mounts) the crack was about 8" long.
We absolutely wanted to save the block (if it had been a run of the mill engine we would have just gotten a brand new block) so we had the machine shop do the procedure that was described by the OP here.
It worked just fine, no leaks, no problems, highly recommend this procedure!
During the rebuild of THE original VIN stamped engine a long crack was found in the rear of the block (behind where the flywheel mounts) the crack was about 8" long.
We absolutely wanted to save the block (if it had been a run of the mill engine we would have just gotten a brand new block) so we had the machine shop do the procedure that was described by the OP here.
It worked just fine, no leaks, no problems, highly recommend this procedure!
Lead Driver
Joined: Feb 2000
Posts: 5,374
Likes: 46
From: Palm Bay, Florida
Seems like the aprox 8" crack in my 1965 289 HiPo engine block was around $200 bucks............I think a person should weigh out the costs and replacement costs before having this type of repair done......on mine it was a no- brainer to save the ultra-valuable VIN stamped original block.
Thread Starter
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Elder User
Joined: Jun 2012
Posts: 536
Likes: 2
From: N. Va.
Seems like the aprox 8" crack in my 1965 289 HiPo engine block was around $200 bucks............I think a person should weigh out the costs and replacement costs before having this type of repair done......on mine it was a no- brainer to save the ultra-valuable VIN stamped original block.
Thanks for your input!
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