2001sunsetmetalss

I took my car down to my friends shop about a month ago to put my asp underdrive pulley on because he said he had the right puller to get it off. We got the old one off fine and i got a new bolt but he said torqing it down doesnt really matter and we just ran it down with the impact

i have been reading some writeups on putting them on and it says you should really torque them down. WHat should i do it want it done right?

MeentSS02

iTrader: (11)

If you use a new, stock type torque to yield fastener, then you need to follow a certain procedure (not sure how many degrees more you have to go though off the top of my head), and if you use an ARP crank bolt, I think the specs on that are 240 ft-lbs.

However, when I had a buddy install my pulley, he put it on with an impact wrench and was done with it. The pulley is fully seated, and has never wandered off, and that was 20 some-odd thousand miles ago. I'm not too terribly concerned about it either.

camarokid02

iTrader: (1)

ya, and hes not going to pay if it comes loose either, dont listen to idiots who think they know it all and dont want to listen to the customer

a good shop will read the instructions and torque to the specs of the part

BriancWS6

iTrader: (18)

What ft lb was the impact though? That will make the difference right there....

thechef

iTrader: (13)

you will be fine

11SECSS

iTrader: (199)

I've never used a TQ wrench when doing any of mine ...then again I might be lucky like alot of others.

The1N_only

iTrader: (7)

the pulley is pretty much pressed on to begin with so even if the bolt back all the way out i HIGHLY doubt the pulley would walk of the front of the crank

orangeapeel

iTrader: (18)

Yeah it is about as tight as you can get it with a breaker bar and a long 1/2 drive. 240 is optimal.

2001sunsetmetalss

im not worried about it wondering out he hammered on it with a 1/2 impact i was just wondering if over doing it would mess with the crank

jay_99z

iTrader: (5)

The bolt will break long before it will do any damage to the crank. If it were me....I would replece the bolt and make sure it's torqued down properly. www.ls1howto.com has the proper procedure. You should be OK but why risk it?

jay_99z

iTrader: (5)

1)Crankshaft Balancer Bolt (Installation Pass-to Ensure the Balancer is Completely Installed) 240 lb ft
2)Crankshaft Balancer Bolt (First Pass-Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes) 37 lb ft
3)Crankshaft Balancer Bolt (Final Pass) 140 degrees