mickytrus Posted January 26, 2015 Share Posted January 26, 2015 Hello, I was in third gear..... I passed someone.... it only revved up to 4k..... It is running well, considering mileage and circumstances...... So I just had it apart. regasket job and I had to put in some threaded rod, due to some bolts stripping in block... It is holding well so far........ 1500 miles on regasket job... Anyway, the freakin' lower bolt loosened up on me.... I believe it was torqued to specification.... Off hand I can remember what it is..... If anyone out here can refresh my memory... on the correct torque of a Lower Pulley Bolt (crank pulley) I would much appreciate it.............. Also, If anyone else has experienced a Crank Pulley Bolt ..... Just loosening up........ and coming off even though they had it at the proper torque..... Could you let me know......... Thanks...... I don't know If maybe I shoule use a new Crank bolt????? or even another one from one of my wrecks????????? Thanks, Micky P.S. Yeah it was not a pleasant experience.... Car dash lites came on for charging,, and Brake fluid light... and I am driving and the power steering was not working.... car got hot before I could pull it over....... (not in the read but close) I tightened up the bolt drove home, another ten miles...... car seems ok........... Just need question above,,,, replied to..... Quote Link to comment Share on other sites More sharing options...
l75eya Posted January 26, 2015 Share Posted January 26, 2015 Lots of people have had similar experiences here. Torque is 180 I believe. People put a dab of blue thread lock. Personally I crank the bolt as tight as I can get it with a breaker bar. You should be good with stock torque and some thread lock. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted January 26, 2015 Share Posted January 26, 2015 Yep - happens all the time. What he said - i use a 2.5 foot pipe over my ratchet and get it nearly as tight as I can. Steel crank and bolt with enormous threads you're not going to strip it unless you go above and beyond the call of duty. New bolt would be pointless. If you have a manual trans those are particularly tricky since there's a lot of give in the drive train and it's harder to "lock" it in place than the auto's via the flexplate hole. Quote Link to comment Share on other sites More sharing options...
mickytrus Posted January 27, 2015 Author Share Posted January 27, 2015 I got a hundred on it today..... So we will see... The top of the spec is like 76..... I wonder if I had fifty or sixty on...... That was a fuzzy night..... worked like ten hours straight doing regasket assembly and get it started... was like 4:30 AM.... Didn't want to stop... wanted it DONE.... Tough call.... not good to get haunted.... Quote Link to comment Share on other sites More sharing options...
mm88swrt Posted January 27, 2015 Share Posted January 27, 2015 Very common, as stated above a good dab of blue thread lock solves the issue. Quote Link to comment Share on other sites More sharing options...
wagonist Posted January 27, 2015 Share Posted January 27, 2015 As others have said, just get the damn thing as tight as you can, even beyond the torque spec. I usually use my home rattle gun which doesn't have a torque cutoff setting. It's a large steel bolt going into a large piece of steel with a "coarsish" thread, you're going to have trouble damaging it. Quote Link to comment Share on other sites More sharing options...
deciple Posted January 28, 2015 Share Posted January 28, 2015 I just bought an 86 that had been stripped out. There are actually 3/8" more thread. Bought a longer bolt and haven't had any issues since. Quote Link to comment Share on other sites More sharing options...
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