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05-01-2015, 07:51 PM | #1 |
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Join Date: May 2010
Location: Allen,TX
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Very Tight Main Bearing Bolts
I have a 29 A engine that was rebuilt many years ago, but never installed or run. I'm taking it down (very carefully) to see if the bearings are stuck.
Are the first and second main bearing bolts suppose to be very hard to turn all the way out. I have to use a long breaker bar to turn the bolts at all. They are about two revolutions out, but still hard to turn. Any thoughts? George Last edited by truesdaleg; 05-01-2015 at 08:22 PM. Reason: This was a dumb question, even a new comer like me. |
05-01-2015, 07:56 PM | #2 |
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Re: Very Tight Main Bearing Bolts
Do you have the cotter pins out and a wrench on the nuts up top?
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05-01-2015, 08:06 PM | #3 |
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Location: Allen,TX
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Re: Very Tight Main Bearing Bolts
This is my first time into this engine. I didn't see the nuts and cotter pin up top. Thanks. You solved my problem.
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05-01-2015, 08:10 PM | #4 |
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Re: Very Tight Main Bearing Bolts
My only question now, is how do I delete the thread so everybody doesn't see how dumb I am.
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05-01-2015, 08:22 PM | #5 |
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Join Date: Aug 2014
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Re: Very Tight Main Bearing Bolts
If you have worked on modern engines it's understandable that you would not expect to find a nut at the other end of a main bearing cap bolt. Don't feel bad, you can get a lot of help from kind people here.
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05-01-2015, 08:31 PM | #6 |
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Re: Very Tight Main Bearing Bolts
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05-01-2015, 11:24 PM | #7 |
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Re: Very Tight Main Bearing Bolts
No way man!! We have all done it!!
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05-03-2015, 05:49 PM | #8 |
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Re: Very Tight Main Bearing Bolts
BTW, that bolt bump that Kurt mentioned should face straight in at the crank or straight out away from the crank for the cotter hole to be in a good location.
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05-03-2015, 07:46 PM | #9 | |
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Location: South California
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Re: Very Tight Main Bearing Bolts
Quote:
Well , 'problem' may not be altogether 'solved', at this point. That is, if you were able to turn the bolt with breaker bar as you described....what is left of the cotter pin may exist inside the bolt. You still may experience somewhat hard time getting bolt back out of block/cap. |
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