PB UD pulley install

Reply Subscribe

Thread Tools

Search this Thread

Apr 25, 2010 | 11:42 PM

ZachJ03

Thread Starter

12 Second Club

iTrader: (4)

Joined: Sep 2008

Posts: 79

Likes: 2

From: Indiana

PB UD pulley install

I noticed the Powerbond UD pulley is slotted like for a woodruff key, but my stock balancer is not slotted. Is there a difference in the install since its slotted? It didnt say anything about it on the install I was reading but thought I'd ask. Is there a woodruff key on the crank that has to line up with the slot on the pulley? Thanks!

Apr 26, 2010 | 06:51 AM

Brandon35thSS

12 Second Club

Joined: Nov 2005

Posts: 184

Likes: 0

From: Gadsden alabama

the ls1 crank is not keyed. just put it on and tourque the bolt to spec and go.

Apr 26, 2010 | 09:40 AM

ssdeuce74

TECH Apprentice

iTrader: (2)

Joined: Jul 2009

Posts: 355

Likes: 0

From: crownsville md

just put some rtv in the slot so it doesn't leak oil

Apr 26, 2010 | 11:18 AM

01ssreda4

TECH Senior Member

iTrader: (96)

Joined: Aug 2007

Posts: 24,241

Likes: 89

From: Turnin' Wrenches Infractions: 005

Quote:

Originally Posted by ssdeuce74

just put some rtv in the slot so it doesn't leak oil

Dont do this. The GM balancer bolt has RTV on the backside of the head. It seals the crank snout off. Only reason you would have a leak is if you were reusing crank bolts.....

Apr 26, 2010 | 04:00 PM

blkbird

TECH Fanatic

iTrader: (28)

Joined: Mar 2005

Posts: 1,678

Likes: 14

From: san antonio, tx

Quote:

Originally Posted by ssdeuce74

just put some rtv in the slot so it doesn't leak oil

wow......................

Apr 26, 2010 | 11:46 PM

ZachJ03

Thread Starter

12 Second Club

iTrader: (4)

Joined: Sep 2008

Posts: 79

Likes: 2

From: Indiana

Thanks for the answers. I was stressed about seeing that key slot on the new pulley, but not having one on my stock pulley. I bought the longer ARP bolt. I tapped the pulley on with a rubber mallet to get it on far enough to grab some good threads, was that wrong to do that? Like could it cause it to sit un level even after bolt is torqed?

Apr 27, 2010 | 04:36 AM

35thredz

Teching In

iTrader: (5)

Joined: Sep 2008

Posts: 44

Likes: 0

From: Oklahoma

If you have it seated back in it's origanal location, and torqued to the proper specs you are in good shape.

Trending Topics

4th Gen Camaro Haltech Rebel LS Install

263

12.7k
"LS7 Lifters" Max RPM's/Lift/CAM Experience

47

2.1k
Boost Wonâ€™t go Any Higherâ€¦???

15

530
Aluminum exhaust on turbo car?

8

249
Madaguy 1955 Nomad Build

297

37.9k

Apr 27, 2010 | 07:53 AM

01ssreda4

TECH Senior Member

iTrader: (96)

Joined: Aug 2007

Posts: 24,241

Likes: 89

From: Turnin' Wrenches Infractions: 005

Quote:

Originally Posted by ZachJ03

. I tapped the pulley on with a rubber mallet to get it on far enough to grab some good threads, was that wrong to do that? Like could it cause it to sit un level even after bolt is torqed?

Yes, this is the incorrect way to install the pulley. First of all tapping it directly transmit force to your #3 thrust bearing surfaces which is no good, also gripping a few threads and pulling it on with a bolt slowly degrades the cranks threads. They are not designed to pull a load this way. However, I'm glad it worked out for you. Next time consider a pulley installer, its a beautiful tool with no chance of damaging thrust surfaces or crank threads. If the pulley is all the way on, and the bolt is torqued then everything is well.......for now.