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Old 12-12-2005, 12:45 PM
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LeSabre97mint LeSabre97mint is offline
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Re: Broken Piston Rods

Quote:
Originally Posted by g1smith
What would cause 4 broken piston rods?
A friend had a leak in his radiator overflow tank and overheated his '97 Ford Taurus with the 3.0 engine. We replaced a cracked cylinder head and the car ran great for about two months . . . then the engine started rattling, or pinging and then it stopped . . . never to run again. We found 4 broken piston rods and the bearing inserts are scored pretty badly. We couldn't even turn the engine over using breaker bars. Could overheating the have caused the crankshaft bearings to expand just enough to cause this?
Yes the overheating may of been the reason for bearing failure. How many miles on the engine before you replaced the head? If the engine was high millage the bearings were already partially worn out. After being overheated, they experienced more wear.

Did you get antifreeze in the oil? Antifreeze destroyes bearings.

It sounds like you guys should goto the local bone yard and pick up a used engine.

Regards

Dan
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