UnderPSI

I was driving down the freeway in my car (2000 TA 8-rib Procharger 10lbs, Heads cam ect.) and I noticed the car was getting really hot, then the accessories started to die so I pulled off the freeway into a parking lot and poped my hood to find that the accessories weren't spinning, and the crank pulley was sitting in there crooked. After getting it towed home I put it up on the lift and found that the crank snout broke clean off.

Just wondering if this has happened to anyone else.

CAT3

iTrader: (9)

MAn that sux. At first I thought this would be the first thread of a crank literally breaking, from too much power. But the snout doesn count for that. Was the crankway keyed or no?

frcefed98

iTrader: (16)

Pics???? I've heard of this happening on LT1's but not an LS1. Please post up a few pics. Damn crazy to have that happen.
J

UnderPSI

It was not keyed, it was a stock crank. I knew it was bound to happen. I am going to have Speed Inc. build me a forged short block with a keyed crank.

Armageddon

iTrader: (41)

holy crap! pics!

yellow04

damn that sucks

TchargedLS1TA

iTrader: (9)

Did one of your accessories lock up? is your belt to tight?

618HAWK

iTrader: (361)

What balancer were you running? Was is pinned, and if so was it pinned from the front or from the side.

Arkangel77

iTrader: (2)

ya that sucks for sure - Just crusin and then snap?

Armageddon

iTrader: (41)

^off topic but where the hell you been?

hows your car comin along since your little bit of bad luck.

NA$TY-TA

iTrader: (21)

damn that sucks... pics????

Arkangel77

iTrader: (2)

I have bin around. I dont post as much lately (but i do read a lot of the posts)? Work & Family has bin keeping me very buisey. My Car is in the garadge with a thick layer of dust on it! I am building the motor - But its going very slowley!!! Its gone be ready in a few months I think Bigger and badder than B4. I have tackeled all kinda stuff while its down. Pumping up the fuel system - More Trans Mods - Better parts for the bottom of the motor and so forth. I am still hear. I will let you guys know when I get it back on the road. Sorry If I hi-jacked the thread - that was not my intent? Lata, Ark

EPP

iTrader: (22)

I have never seen this happen! Bob

Slow Z28

iTrader: (19)

Car looks weird as hell, because it LOOKS normal. Then when you move the belt, the pulley just wobbles.

Full-Force

iTrader: (11)

That sucks bad. I worked on a Honda Civic one time and with the motor running the crank pulley was sitting still. The inside of the balancer was just worn out bad.

I dont see why the snout would break on an LS1 crank unless the pulley got worn out and/or the snout got worn down and started letting the pulley wobble to the point where it broke.

Public

iTrader: (19)

Why not, every other engine design I've heard of with a high HP supercharger has broke snouts in the past. Thats part of the reason some get oversize snouts on aftermarket cranks(not that you need this because you probably dont). And how about the #1 main bearings pic as well as the snout.

Sorry man thats a bummer!

frcefed98

iTrader: (16)

I've heard of the crank bolt working itself loose and then the crank pulley comes off, but not the crank snout breaking off on an LS1. Its not like he was pushing 20psi. He is pushing 10psi. I used to push 12psi without my crank being pinned or keyed. I did key it when I built up the new engine.

Pics?? What happened to this guy?

Slow Z28

iTrader: (19)

He's busy. He can only hop on here every so often. He's a good friend of mine. For now the car's sitting until speed inc. can get it in for the new motor. i'm gonna get the pics when it does go in though.