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Old 03-21-2006, 05:31 AM
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cracked block

my name is Kenny have 2 kids and am married. i am a manager for a restaurant. i have been working a 92 ford Taurus wagon for repairs. i am 30 years old. i am having trouble with figuring out what i should do with a cracked block, any help would help out a lot. does jb weld work or what product do you recommend?

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Old 03-21-2006, 11:12 AM
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Welcome to hotrodders Kenny....this forum is just for introductions. Please place your question in the Engine forum and you will have a better chance at getting answers. Thanks
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Old 03-21-2006, 06:36 PM
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moving it there......
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Old 03-21-2006, 10:42 PM
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I have heard that JB weld will not work in a cracked block because the block expands and the jb weld doesn't as the motor warms up. so it won't seal. just crack and fall out. You should be able to find some sort of stop leak product at your local parts store.
Good luck
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Old 03-22-2006, 04:55 AM
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Doc here,

Where is the crack? and what caused it? Those are two important questions..

If something flew up and hit the engine and cracked it down by the pan, You could probably get away with getting it welded up..

If it was an overheat crack, and is leaking into cylinders and into the oil pan, you'll need to pull it, evaluate the damage and do a $$ FOR $$ Machine Shop Vs Replacement block..

Doc
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Old 03-22-2006, 05:14 AM
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I used jb weld on a manifold that I cracked by tightening a water fitting down a little too much,it worked fine,and is still working to this day.

Never tried it on a block tho,but if you do,just make sure to clean and prep the area real good first,grind the area to give it a rough surface to adhere to,and give it the reccomended curing time before running the engine.
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Old 03-22-2006, 06:19 AM
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Like Doc said,......

Without knowing Where,+ Why it's Cracked,.........

There Ain't No Answers..........
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Old 03-22-2006, 06:31 AM
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cracked block

Just to throw in my two cents worth.... I had a 350 that was cracked on both sides between the sand plugs because of freezing. The cracks were only external and I had it welded quite a few years ago. An evaluation of damage would be needed before investing the time and money to repair.
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Old 03-22-2006, 10:54 AM
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more than likely it has a 3.8l engine that is notorious for blowing head gaskets. for the price youd put into fixing the block and having the heads serviced, youd be better off with buying a new engine. you could get away with a junkyard motor as long as you rebuild it before dropping (raising) it in the car. the rebuild would just be a basic: rings, rod and main bearings, seals and gaskets, and have the heads overhauled at your preferred machine shop.

Dale
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