GeorgeC

At least now I know why the car has been wanting to sling the belt off... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

I did a burnout, and as soon as I let off the gas, I saw the check gages light come on, and saw the voltage drop on the voltmeter. I knew that it had tossed the belt again so I backed off the track and put the belt back on. 2nd try, same thing, but this time I heard a clunk. Evidently the crank pulley bolt had worked itself loose somehow and fallen out (this probably happened last Wednesday). With nothing holding it on, the crank pulley itself eventually just fell off.

Nothing looks damaged, so I think it will be fine once I get a new bolt. I can't remember if I used thread locker on the bolt last time, but I'll be sure to do so this time!

Obviously, I got no tuning accomplished last night...

Reckless

iTrader: (9)

Dang! Good thing it happened at the line.. Could've been real ugly otherwise. I reused my last crank bolt with red loctite and haven't had any problems at all.

GeorgeC

This wasn't the first time I've reused one. I think I forgot to squeeze some loctite on it.

I have 3 brand new ones one the way (should have them tomorrow morning) <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Skelton

George, have you considered pinning the crank pulley? You do turn some high rpms.

GeorgeC

Right now I still have the ASP aluminum underdrive pulley. I do want to put an ATI damper on the car in the future. There is no provision on the ASP pulley. I'm concerned about the crankshaft snout. How would you put a pin in it?

ROB'S SS

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>Ah reused the crank bolt bad boy!!! I think a used one won't torque all the way so the other bad thing is that the pulley might be over a few millimeters and it can throw belts for that reason too.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">according to the boys at MMS, its not as bad as you think. sense the bolt isnt a torque to yeild bolt, it can be reused. i think its in chevy high performance. maybe the new one? they are doing a bolt on ls1 and they changed the pulley and thats what MMS had to say about it. ill look at work for the mag and get a pic and the rest of the article.

XLR8NSS

iTrader: (4)

There is some info(picture also) on ATI's website about the fixture/kit. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

ATI damper pinning kit

It looks like you might even be able to use it with the stock damper. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

John

<small>[ September 19, 2002, 05:19 PM: Message edited by: XLR8NSS ]</small>

GeorgeC

Ahhh... Now I see. The picture in my head was a little different design.

I think I need to get the ATI damper and the pin kit!

Thanks for the link!

Villain281H

iTrader: (5)

damn George, sorry to hear you had bad luck last night, at least it didn't happen on saturday night! Hopefully you'll be back to pushing buttons in no time!

Derek <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

Ryan K

iTrader: (11)

BTW, the crank bolt IS a torque to yeild bolt. I can pull out the book if you would like. And with out a flywheel holding tool its a major PITA to get that 120 degrees!

Ryan K.

Pro Stock John

iTrader: (34)

Yes it is. It's possible that George needs a keyed assembly or something but old crank bolts just stretch and I'm sure they don't see all the way. I had a buddy who decided that he was tired and did not torque his all the way and it was not seated all the way and would throw belts at WOT, stuff would walk off.

ALLBORENOSTROKE

If you are running an ASP pulley you might need to get a new one.I had the same problem with my car,I tried a new bolt and it still fell off.Sometimes if the pulley is taken off and reinstalled a couple of times it has to be replaced.

XLR8NSS

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ryan Karasek:
<strong>BTW, the crank bolt IS a torque to yeild bolt. I can pull out the book if you would like. And with out a flywheel holding tool its a major PITA to get that 120 degrees!

Ryan K.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">BIG Screwdriver thru the flexplate and a two foot extension on a 1/2" breaker bar. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

BTW, ATI (supercharger not damper company) sends a reusable damper bolt with their blower kits. For people always slinging dampers off(George C <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> ) a reusable bolt(non TTY) and 1 hardened washer would probably be better.

George - No problem on the link! Get that puppy into the 9's <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />

John

Pro Stock John

iTrader: (34)

Ah reused the crank bolt bad boy!!! I think a used one won't torque all the way so the other bad thing is that the pulley might be over a few millimeters and it can throw belts for that reason too.

GeorgeC

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Y2K Blackbird:
<strong>George, have you considered pinning the crank pulley? You do turn some high rpms.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I was thinking of that... I presume you have to have a keyway machined into the crank snout, though. I don't want to pull the engine out and disassemble it at this point though.

If it can be done with the motor in the car, then I'd be all for it.

XLR8NSS

iTrader: (4)

What pulley do you have? ATI?

I think ATI has a crank pinning kit that allows you to pin the crank pulley while its on the car. I don't know if it will work with a stock pulley or not, probably not. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

John

30th TA 0219

How much is that bad boy?!?! Was that just the template for drilling and installing?!?!

GeorgeC

The pinning kit is just over $100. It looks like it comes with everything needed to drill the keyways and install the pins. The ATI dampers already come with the keyways, so only the crank would need to be modified.

Terry Burger

iTrader: (4)

Pinning is only for blowers. I doubt George's alternator has enough drag to spin the crank. Just put a new bolt in. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

30th TA 0219

George, where would you go around here for that?!? Or would you do it yourself?!?! You need and ATI anyway spinning like you do, and it's legal at your speeds! But just curious also about notching a non-ATI pulley. Let us know what you decide. When you hitting G'ville again?!? Haven't seen the new motor run yet!