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12-21-2014, 09:10 AM | #1 |
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Location: Fort Jones, Calif
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Castle nuts and correct torque
An old question I'm sure, but I'll run it by once again. After getting the correct torque on the mains, I noticed that some holes for the wire don't line up. I did a search here and found this from a few years back. Would I be good to go with Kurt's post?
This is a 1948 '59' block. http://www.fordbarn.com/forum/showth...tle+nuts+crank
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Darol |
12-21-2014, 09:18 AM | #2 |
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Re: Castle nuts and correct torque
Kurt's post seems right to me. Personally, I use the Chevy rod nuts and did not wire them. No problem thus far.
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Henry |
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12-21-2014, 09:38 AM | #3 |
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Re: Castle nuts and correct torque
You can buy grade 8 nuts from your local auto supply, been doing this for years.
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12-21-2014, 09:45 AM | #4 |
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Location: Fort Jones, Calif
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Re: Castle nuts and correct torque
Would you do the same for the rods Ron? When I took this motor apart, it had keeper/retainer nuts behind the rod nuts.
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Darol |
12-21-2014, 11:07 AM | #5 | |
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Re: Castle nuts and correct torque
Quote:
Just use Chevy 350 rod nuts they will work just fine.Install them and torque and they will never come loose. There are 100,000,000,000 + of them running down the freeway all day long. R |
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12-21-2014, 09:59 AM | #6 |
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Re: Castle nuts and correct torque
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12-21-2014, 11:52 AM | #7 |
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Re: Castle nuts and correct torque
Just threading some wire through the holes is not really "safety wiring" it! If you look at some wiring jobs, you can visualize the bolt/nut backing off a quarter turn or more before the wire does any good. Oops, too late! There is an art to a proper safety wiring job. The wire has to be routed so that when it is twisted tight, it is in effect pulling the bolt/nut tighter.
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12-21-2014, 02:41 PM | #8 |
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Re: Castle nuts and correct torque
I worry less about the nut and more about the forged "bolt" part of the rod.
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12-21-2014, 03:16 PM | #9 |
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Re: Castle nuts and correct torque
The correct torque for mains is 75-80 ft lbs. For rods with castellated nuts, 35-40, with self locking, 40-45.
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12-21-2014, 03:53 PM | #10 |
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Location: Fort Jones, Calif
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Re: Castle nuts and correct torque
That's right. Studs with nuts are 80 and bolts are 100.
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Darol Last edited by DWester; 12-21-2014 at 04:00 PM. |
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