Flywheel stripped threads

Tiny
DON ROBB
  • MEMBER
  • 1976 JEEP CJ5
  • 6 CYL
  • 4WD
  • MANUAL
  • 76,000 MILES
I'm putting a flywheel on a 1976 cj5 jeep and noticed that at least one or more of the slots for the bolts have threads that are stripped inside and only a quarter in. Of the threads are left. Is that enough to hold a bolt at 105 ft lbs. Or should I buy a new flywheel? How important is it to get them torqued to the 105 lbs?
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Saturday, February 19th, 2011 AT 4:51 PM

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Tiny
M_H_RITZEL
  • EXPERT
I had to read this a couple of times. Is it the bolts that go to the crankshaft you are talking about. If so there are a couple of things you can do. Get a little longer bolt, Drill the crankshaft out and retap it. Or drill it out and use a heli coil. If you decide to go to longer bolts just watch so when you put them in they don't go in as far as to hit the back of the pan. If you drill it out then you will have to rethread it and use a bigger bolt. The problem there is that the flywell hole is going to be too small and will have to be drilled out to the right size. If you use a heli coil then it will have to be drilled just a little then what they call a heli coil is threaded in. Then the bolt you use will be smaller than the original. I would first try with a longer bolt and see if you have enough threads to get that torque. The torque is suppose to be from 100 to 110 psi. If it is justy one or two bolts you should be able to get away with just a little longer bolt. You would still have 4 that are good.
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Saturday, February 19th, 2011 AT 7:10 PM
Tiny
DON ROBB
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It's the bolts that hold the clutch plate onto the flywheel that is in question.
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Saturday, February 19th, 2011 AT 11:42 PM
Tiny
M_H_RITZEL
  • EXPERT
Ok that helps. When you push on the clutch it does put a lot of pressure on those bolts. You probably get the flywheel to work if you can get the bolts to tighten up and pop out from the pressure. Checked around and you can get one from napa or advanced automotive for around $65.00 To save some money you can get in touch with a salvage yard and see if they have one. It would be a lot cheaper.
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Sunday, February 20th, 2011 AT 12:27 AM

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