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Author
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Topic: Are main bolts one time use only?
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wilit
Mustang Messiah
Member # 3367
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posted
 
 
I'm thinking they probably are torque to yield bolts and can be used only once, correct?
Where can I find a set of OEM bolts? All I can seem to find is Canton or ARP bolts.
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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JohnB
Tech Moderator
Member # 969
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posted
They are technically TTY bolts. With that being said, I've never seen a failure at a main cap from re-using them. ARP are a nice piece of mind, but remember to check the line bore once installed.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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wilit
Mustang Messiah
Member # 3367
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posted
That's the reason why I wanted to avoid using the ARP bolts, because I've been told in the past, when you use a bolt with a higher clamping force, you need to make check the journals to make sure they're still round.
I'm installing a FMS windage tray on a seasoned engine and I was planning on loosening up all of the main bolts, replacing the 4 bolts with the ones from the windage tray kit and retorquing everything. Think I'd be okay reusing the OEM bolts?
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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JohnB
Tech Moderator
Member # 969
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posted
Yup, you'll be fine. Make sure you use a decent amount of oil on the threads or moly lube, as well as the undersides of the bolt heads. Go for it!
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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