Caribe

iTrader: (1)

Just found out what was wrong with my car. The Rollmaster timing chain busted. The only way I think this would happen is with a defective chain. I guess now I will see what kink of damage was done. Has this happen to anyone? This is the old thread:https://ls1tech.com/forums/generation-iii-internal-engine/280345-help-motor-kinda-long.html

robertbartsch

Since I have one installed in my street motor this really sucks!

dug

iTrader: (10)

I have heard of all timing chains breaking. Thats why I reused my old one when I swapped cams. Its scary. Its bad enough to waste money on a part that breaks but when it takes out other things its bullshit.

Cstraub

iTrader: (1)

Did the Rollmaster set have the IWIS chain or the the Rolon Chain?

Chris

jrp

iTrader: (16)

thats what i want to know as well.

mines the Rolon, which is the weaker chain IIRC.

Caribe

iTrader: (1)

How do you find that info out? I bought it from TSP: 11-1160 Rollmaster Ls1 heat-treated, double-roller adjustable timing set. Only had it in the car for a week or so. My shifts were set around 6400 with the TSP 233/239 cam.

jrp

iTrader: (16)

look on the chain links.

Caribe

iTrader: (1)

Car is at the shop, I will check next time I am out there.

Cstraub

iTrader: (1)

The IWIS is the good chain made in Germany. The Rolon is made in France. There has been a lot of changes at Precision Cam Drive, mfg of Rollmaster, I hope this is not a sign of the future.

Chris

Stryker

iTrader: (5)

with about 500 miles on my new rollmaster.. now i am worried

Caribe

iTrader: (1)

I was very surprised myself, what is strange the car drove fine, no noises or jerks. When I was my sisters house I started my car up and it was fine also. About 15 minutes later nothing. Very strange.

SLowETz

iTrader: (12)

I had a car do that once. Ran fine. No noise. Parked it. Went to start it..... nuthin'. No damage either.

No noise on breakage = you got big lucky.

Caribe

iTrader: (1)

So you had no internal valve or piston damage?

98A4LS1

iTrader: (1)

The GM LS2 chain I ordered says made in France. Looks like a bicycle chain, almost afraid to put it on. According to others, the LS2 timing chain is stronger than the stock LS1, I dunno!

Slowhawk

iTrader: (12)

Did you take it apart yet?I'm wondering if the bolt's holding the cam retainer might of backed out and caught the top gear or maybe the Cam bolt's fell out?(I've seen that before)

ROCNDAV

iTrader: (100)

So, should you use Loc-tite when assembling them? I actually ordered ARP cam bolts and cam retaining bolts. Should I use Loctite when I get them ?

David

Ryan K

iTrader: (11)

Yes, always use loc-tite on the cam bolts.

Guys, with Roll masters, I would NOT worry! I ran one of these with a solid roller high lift cam which put a hell of alot of pressure one the chain, and NOO problems. I am gonna bet this is an install problem/piston to valve issue.

Ryan

Mike98WS6

iTrader: (5)

I'm sorry to hear about the mishap. I hope everything works out for ya.

Slowhawk

iTrader: (12)

Yes,and torque it more than what the spec say's.I tighten them till I feel the bolt stretch.

I've run single chains with no problems on any of the cars we've built.My personal Firehawk ran a single JWIS chain for over 150 1/4 passes with a .600 lift Cam.

Caribe

iTrader: (1)

The cam bolts were still in. They were torqued to specs and loc-tite was used.