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04-07-2016, 11:36 AM | #1 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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AARRG! Did I strip my crank?
So I was torquing my flywheel yesterday in three increments, 15, 30, and 45. That's from the book. But I was using my 3/8th Torque Wrench, and it maxes at 75. Still, it's within its range.
Just as I was torquing the last bolt I was thinking "This seems like a lot of torque, why hasn't the wrench clicked?", it got easier to turn. Fearing I stripped something, I stopped. When I backed the bolt out, it looked fine. But I set it aside and got a completely new set. I took the flywheel off, ran a bolt through that hole in the crank with my electric impact lightly. It took a little force compared to a new hole, but it went in and out without incident. So I put the flywheel back on, used new bolts. I wasn't sure if that one hole was going to hold 75 ft/lbs so I used red loctite and stopped at 45. I probably need to go out and redo it to 75 and take my lumps, but I'm scared. Will 45 ftlbs and red loctite hold it forever, or should I take it to 75 and get the crank repaired if needed?
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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