hockeyplayer21

Back Story. Putting an 05 LM7 in a 2000 Jeep Wrangler TJ. Was bolting up the flywheel. When Torquing them to spec, Two of the bolts "loosened" and kept spinning. Am I totally screwed now? What should I do?

Thanks in advance.

S10xGN

iTrader: (11)

Well, have you pulled the bolts back out and looked at them? Obviously either the bolt or hole or both are trashed, next step is to determine which...

jeremyfrank14

iTrader: (19)

Get a rope, find a tree... you know the rest

parks450

iTrader: (17)

^lmao!!! But really I did the same thing awhile back, the bolt stripped on me not the crank threads. The crank part I believe is hardened so I dont think ypu should worry. As stated obviously take the bolt outband check it out, could have did that before you posted.

99.9percenter

iTrader: (2)

Get some good bolts. A.R.P.,Mr. Gasket, Trickflow,etc. Hardware store bolts WILL NOT WORK.

Mike454SS

iTrader: (4)

If you did strip the crank, you can helicoil the threads...but with a little luck you just trashed the bolts, though I think you probably will find you damaged both.

If the bolts are too short, you'll run into this...were you re-using stock flexplate bolts from the truck on the new flywheel? Usually a flywheel has a thicker flange at the crank, necessitating longer bolts.

jeremyfrank14

iTrader: (19)

^ What he said, BUT, no offense to the OP but seems like you are a little low on the know how level. Might ask somebody that has some experience heli-coiling and drilling before you take off and start drilling on the crank, or its gonna get expensive. Get a longer bolt and see if it tightens up, if not go pick the rope back up.

GNIUS

iTrader: (2)

run a tap thru the crank threads to clean them out.

rickyzZ28

iTrader: (28)

I would be more inclined to use something like this on a striped flywheel bolt on the crank. http://www.timesert.com/ I know a helicoil should do the job, but a time sert is a little better at bitting and holding. I would only want to do this once for me taking a chance with a helicoil on a part that is as crucial as a flywheel bolt is not something I would want to skimp on.

jeremyfrank14

iTrader: (19)

We heil coil head bolt holes in blocks, I have seen reman short blocks straight from CAT come like that. If done correctly, they work. Those inserts are good too, just have to drill a bigger hole

Paul Bell

iTrader: (9)

Hockeyplayer, welcome to LS1tech!

Search is your best friend here.

As you are a newbie here, we all have to assume you have little knowledge or experience in these things-until you show otherwise. In the meanwhile, we'll try to help you along.

Tell us more about the bolts you used-like where they came from. What did you torque them to?