Lsa supercharger alternator pulley bolt off - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Dcoy56 · 09-04-2017, 06:31 PM

Like the title say, my alternator pulley bolt is backing off. This has happened about 5 times now. I have a lsa supercharger and adm kit on the car for about a year or so before this started happening. The car is a 2013 manual ls3 ss. This problem didn't start until I upgraded my clutches. Now if I launch the car hard 2 or 3 times it backs the alternator pulley bolt half way off and tearing up the belt. Has anyone experience this or have any ideas of how I can solve this problem.

I've already tried pinning the alternator bolt. That worked for a while, until the other day. I can post pics of the alternator if needed. Any help will be appreciated.

Don't get me wrong, love the kit and the car is a beast. I just t want to be able to let the beast eat without breaking something.

I made a similar post a while back. I thought I had a fix but I didn't, at least not long term.

jrhagen · 09-04-2017, 07:30 PM

I had the same problem with an idler pulley a couple years ago, with the same set up as you. Pulled the bolt out and used some loc tite. I check all the bolts from time to time but the issue hasn't returned.

2010_camaro · 09-10-2017, 08:16 PM

Had the same issue. Actually destroyed two alternators. My third alternator I put a couple tack welds on the nut. Red loc-tite wasn't enough.

ADM PERFORMANCE · 09-11-2017, 08:06 AM

If all else fails, put an l99 automatic alternator on it.It has a 1 way sprag on it.

So it looks like 2 failures show to exist from what I see posted.

John Hagen was a bad factory idler pulley, not an alternator problem.

http://www.rockauto.com/en/moreinfo....1444223&jsn=15

or buy just the sprag(decoupler)- http://www.rockauto.com/en/catalog/c...or+pulley,2448

and the special tool to install it

https://www.amazon.com/s/ref=nb_sb_n...-1-1-2676--4-1

jrhagen · 09-11-2017, 08:22 AM

Quote:

Originally Posted by ADM PERFORMANCE

If all else fails, put an l99 automatic alternator on it.It has a 1 way sprag on it.

So it looks like 2 failures show to exist from what I see posted.

John Hagen was a bad factory idler pulley, not an alternator problem.

http://www.rockauto.com/en/moreinfo....1444223&jsn=15

Andy, unless you replaced that bad factory idler pulley, the same one is still in the car. I haven't had an issue since the bolt backed out at Texas Motorplex and shredded the accessory belt. Once I got home and figured out what the exact issue was, I pulled the bolt, loc-tite, new belt and haven't had an issue since.

I'm just saying bolts back out and need to be checked from time to time.

09-04-2017, 06:31 PM	#1
Dcoy56 Drives: 2013 2SS RS camaro Join Date: Apr 2013 Location: Savannah Ga Posts: 112	Lsa supercharger alternator pulley bolt off Like the title say, my alternator pulley bolt is backing off. This has happened about 5 times now. I have a lsa supercharger and adm kit on the car for about a year or so before this started happening. The car is a 2013 manual ls3 ss. This problem didn't start until I upgraded my clutches. Now if I launch the car hard 2 or 3 times it backs the alternator pulley bolt half way off and tearing up the belt. Has anyone experience this or have any ideas of how I can solve this problem. I've already tried pinning the alternator bolt. That worked for a while, until the other day. I can post pics of the alternator if needed. Any help will be appreciated. Don't get me wrong, love the kit and the car is a beast. I just t want to be able to let the beast eat without breaking something. I made a similar post a while back. I thought I had a fix but I didn't, at least not long term.

09-10-2017, 08:16 PM	#3
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	Had the same issue. Actually destroyed two alternators. My third alternator I put a couple tack welds on the nut. Red loc-tite wasn't enough. __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

09-11-2017, 08:06 AM	#4
ADM PERFORMANCE Drives: Anything I want Join Date: Oct 2008 Location: DfW - Texas Posts: 5,405	Like I ahave said before If all else fails, put an l99 automatic alternator on it.It has a 1 way sprag on it. So it looks like 2 failures show to exist from what I see posted. John Hagen was a bad factory idler pulley, not an alternator problem. http://www.rockauto.com/en/moreinfo....1444223&jsn=15 or buy just the sprag(decoupler)- http://www.rockauto.com/en/catalog/c...or+pulley,2448 and the special tool to install it https://www.amazon.com/s/ref=nb_sb_n...-1-1-2676--4-1 Last edited by ADM PERFORMANCE; 09-11-2017 at 08:23 AM.

09-04-2017, 07:30 PM	#2
jrhagen Banned Drives: Camaro Join Date: Mar 2013 Location: USA Posts: 2,701	I had the same problem with an idler pulley a couple years ago, with the same set up as you. Pulled the bolt out and used some loc tite. I check all the bolts from time to time but the issue hasn't returned.