PDA

View Full Version : what makes a balancer come loose?



parish8
03-06-2010, 09:28 PM
at the track today mine came loose. lucky it got caught before it fell off. anyone know what causes this. i was told by a buddy of mine it is a common problem at a certain hp level. is this true? is it rpms? hp?

then when you "pin" it is this the same pinning that you do for something like a magncharger where the pin runs parallel to the crank?

GeorgeInNePa
03-06-2010, 09:37 PM
You're certain the bolt was properly torqued?

parish8
03-06-2010, 09:46 PM
nope, i used my usual technique. new bolt, 1/2" name brand impact, run it till it stops and then keep running it for another 20 sec or so. it has worked for me for the last 10 years on lots of set up's but failed me today. lucky no damage.

GRRRR8
03-06-2010, 09:56 PM
I have seen it on SC cars, not turbos. Try Loc-tite and make sure it is pressed on all the way before tightening.

parish8
03-06-2010, 10:00 PM
I have seen it on SC cars, not turbos. Try Loc-tite and make sure it is pressed on all the way before tightening.

yeah, i always use a longer than stock bolt to get it started and then the old bolt to pull it all the way on and then the new bolt last.

gr8lover
03-06-2010, 10:05 PM
Interesting topic.... I spent the last two hours trying to get mine off...... Pain in the rear!!!! I am using an impact wrench and it isnt even budging......... completely stopped my Maggie install..... I think the one I have in it must have been Loctite'd with some serious Loctite!!!!! Still cant get it off...??....

parish8
03-06-2010, 10:07 PM
Interesting topic.... I spent the last two hours trying to get mine off...... Pain in the rear!!!! I am using an impact wrench and it isnt even budging......... completely stopped my Maggie install..... I think the one I have in it must have been Loctite'd with some serious Loctite!!!!! Still cant get it off...??....

no, that is the way they are. i use a breaker bar and a longer bar on that like the floor jack handle. the hard part is keeping the engine from turning when you put all that pressure on there.

99-LS1-SS
03-07-2010, 06:27 AM
It's too much POWAH!!!

wreckwriter
03-07-2010, 08:21 AM
Mine stayed tight but the actual balancer spokes broke.......

Mike@NewEra
03-07-2010, 09:55 AM
What brand is the balancer that you have? Is it the stock balancer?

parish8
03-07-2010, 10:03 AM
stock

Mike@NewEra
03-07-2010, 11:32 AM
Is the inner hub scored?

parish8
03-07-2010, 11:47 AM
didn't take it off and look. we were at the track when it happend and it didn't fall off. just tightened it up best we could and drove it home.

Remikinz
03-07-2010, 12:21 PM
It's too much POWAH!!!

I dunno why but for some reason I heard Arnold saying this in my head and I laughed uncontrollably... I think Im losing my mind...

Mike@NewEra
03-07-2010, 12:29 PM
Here is my reccomendation, get a Powerbond underdrive crank pulley/balancer. You have literally doubled your power and that most likely results in about 35% faster acceleration. Now that is going to put a good bit more load on the stock crank pulley/balancer which isn't even SFI approved, and the Powerbond is. If you can underdrive your accessories 25% with the crank pulley it will definitely help reduce some load off the crank which could possibly be a result of your problem, this is just my opinion, just trying to help, not just trying to sell you something. But, if you decide to just keep the stocker on there, and it comes off again, definitely get the Powerbond.

parish8
03-07-2010, 01:45 PM
Here is my reccomendation, get a Powerbond underdrive crank pulley/balancer. You have literally doubled your power and that most likely results in about 35% faster acceleration. Now that is going to put a good bit more load on the stock crank pulley/balancer which isn't even SFI approved, and the Powerbond is. If you can underdrive your accessories 25% with the crank pulley it will definitely help reduce some load off the crank which could possibly be a result of your problem, this is just my opinion, just trying to help, not just trying to sell you something. But, if you decide to just keep the stocker on there, and it comes off again, definitely get the Powerbond.

i think i see what you are getting at. the acceleration of the accesories is what might be causing the ballancer to spin since it is pulling thru the rpms faster than stock? slow them down and drop the load some.

there is evidence of the belt slaping the water pump outlet and that is at least an inch away from the belt. can you still pin the powerbond with a kit like the magnacharger set up uses?

Mike@NewEra
03-07-2010, 02:03 PM
Yes, you can still pin the crank.