How to tell if rod is bent?
03-13-2009, 12:55 PM
#1
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Location: Katy, TX
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How to tell if rod is bent?
A car I'm working on had a lot of antifreeze build up in #1 cylinder when it blew the head gasket. I tried starting it a few times before I knew what happened, and I want to know if there's a way to check internal damage to the rod/piston without pulling the whole motor.
It seemed to turn over fine when I was trying to start it.
It seemed to turn over fine when I was trying to start it.
03-13-2009, 06:27 PM
#3
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Location: Saskatoon, SK, Canada
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You could pull a head and see if it (victim piston/rod) comes up as high as the others on that side. If its the same its probably ok. If its lower, then its bent. You could also check this with a piston stop tool - the kind that threads into the spark plug hole.
03-13-2009, 07:26 PM
#4
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Location: Garland, tx
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it could be very hard to do this way...and bent rod isnt a ton shorter then a normal one...compression test is best way... or pull motor apart
03-16-2009, 05:09 PM
#5
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Location: Purgatory... Also known as New Jersey.
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Next to no real way short of disassembly and checking with the appropriate tools. A compression test is not reliable unless the bend is fairly severe; a 'tweaked' rod can still fall into the acceptable range of deviation.
03-16-2009, 07:01 PM
#6
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03-25-2009, 01:45 PM
#7
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