Anybody ever have that happen? Clearly I did something wrong.

I was following the FSM and tried to torque my flywheel bolts down to 90 ft. lbs before applying loc-tite and torquing to final torque of 93 ft. lbs.

Before I got to 90 one of my flywheel bolts sheared. Brand new, positive it was the right part. Straight from nissan.

Was it my torque wrench? I was using a 1/2" drive to 3/8" drive adapter and my trusted torque wrench. Tested the wrench to make sure it was still clicking when I noticed I was turning the flywheel bolts for a long time... It clicked like it should on the lug nuts of another car that was parked. Didn't get it to click on any of the 8 flywheel bolts before the one sheared off. I got it out thank god.

Any ideas on what I did wrong? It seemed like I was cranking on them forever. :confu sed2:

Gotta wait until next weekend to drop the motor/tranny now. Damn!!!

 

Two problems. Where did you get that torque recommendation? My 04 manual calls for 65 ft lbs. How did you plan on getting locktite on the bolt threads after tightening the bolts?
All of the bolts that were tightened to 90 lbs need to be replaced as they are toast.

 

So here's where I'm at. Last week I read from a few DIYs that you should torque to 90, remove, apply loc-tite, then torque to 93 when you have an aftermarket flywheel.

After checking in the FSM I saw it was 65 like you said. Not sure where they got the 93 thing from because you would always be using OEM bolts, no?

My current plan is torque to 65 remove, apply loc-tite, then torque to 68... Need to finalize whether I should do a re torque with a 3 pound increasd or not. Didn't read it thoroughly yet. Been busy. But that's what I heard.

Got new bolts already, not taking a risk there like you said. I definitely compromised the integrity of the other 7. Thanks for the reply.

 

Apply the locktite to the threads before tightening. Cross torque the bolts 10 lbs at a time and stop at 65 lbs.

 

Thank you sir