Same thing happened to me, I bought a billet timing chain from Mancini
Racing and found that the small gear was off by 45 degrees! Luckily I
degreed the cam and found the problem before I started it.
Your situation is a great example of why you should ALWAYS degree the cam
when you install a new chain or cam! You got lucky, you could have bent some
valves.
Mark Kuzia
flyboy01@mediaone.net
http://people.mw.mediaone.net/flyboy01/home.html
1995 Dakota 13.79 @ 102.45 mph
360ci, 5-spd, 4.11 LS, Cowl-induction
----- Original Message -----
From: "Bernd D. Ratsch" <bernd@texas.net>
To: <dakota-truck@buffnet.net>
Sent: Friday, October 20, 2000 11:33 PM
Subject: DML: Mopar Performance Timing Chain
>
> People...PLEASE beware when installing the Mopar Performance DBL-Roller
> Timing Chain!!
>
> After everything was put back together earlier tonight, she was ready to
> fire up again. She cranked (rather strangley) a few time but fired
> up...VERY rough idle and the engine sounded like a diesel engine. We
> immediately shut her down and tore down the timing cover...just to check
if
> the timing marks weren't quite "dead-on". Yup, they're right on.
> Hmmm...maybe they're off from the factory...
>
> We reinstalled the original factory set and found that it was off by three
> teeth!! After a closer inspection of the crank gear (Mopar Perf), we
found
> that the normal "Ball Peen" mark was off and there was a VERY SMALL
scratch
> on the gear designating the alignment mark. We compared the factory and
the
> MP gear together and found that the scratch mark was actually the
alignment
> mark. Yes, it was mismarked from the factory!! (I'm an ex-mechanic and
> have installed many timing gear sets without ever seeing anything like
> this...and my neighbor who's an ex-GM Line mechanic checked everything
with
> me on install and agreed that this was mismarked as well.)
>
> Please, be very careful when you install the new gears (if you decide to
do
> this yourself)...compare the old gear with the new one and don't just
> "trust" MP to be accurate from the package.
>
> We're checking the compression in all cylinders tomorrow to make sure that
> nothing was damaged.
>
> - Bernd
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:56:16 EDT