[Vwdiesel] timing belt crank pulley torque

[Chuck Carnohan]

 Justin & Nick,

Nick's Ecodiesel sounds a little different but similar to the engine you
are dealing with. I can't answer all of your questions but I have dealt
with this type of pulley on my '84 Rabbit. The engine (1.6NA) came out
of a wrecked '84 and appears to be a later Canadian VW Remanufacture
from the paint job (green stripe, nothing else). So, the donor car was
hit hard on the pass side wheel well and it clamped the chassis to the
crank while it was running causing the pulley nub to shear and the
valves to bend. No other damage. I got a new pulley and torqued it down
with a cheater as hard as I could as I have no torque wrench that goes
to 148!  This style is the "improved" design over the earlier keyway
pulley.  I used oil on the threads and about a 1-foot cheater bar with
my 1/2" breaker bar. I don't remember the size of the bolt but it wasn't
a 12pt. Engine blocked-up on a table with my son helping me hold it. I
used heavy fencing wire to tie the clutch plate to the block. Not the
high-tech methodology but I sure as hell got it tight! With your size
Justin, I doubt you would have to work as hard at it! I have now driven
the car for over 10K miles without a problem.

I hope all is well with you and yours!  Good luck with the wrecking
yard- I maintain that a good junkyard is a license to steal!


Chuck Carnohan

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
On Behalf Of mikitka
Sent: Monday, January 22, 2007 6:02 PM
To: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] timing belt crank pulley torque

I'm not up 100% on here but I have a 91 Jetta ECO diesel and my pulley
did come loose and yes it cost me a perfectly good brand new head and
cam.

If you have the set up I'm thinking about with the twelve point bolt
then yes that is the torque but my Bentley went farther as to the point
once you set the torque to the 148 lbft then you have to turn the bolt
half a turn more. Now that was interesting because I had to block the
crank with a piece of wood between the crank journal and the block up
inside the engine to keep it from rotating. At least it is easy to take
the oil pan off.

Nick

 

I am installing the timing belt crank pulley on a 1.6 td.  It is the
crank style that has a notch in the end of the crank and a nub cast into
the pulley as a key.  Two questions.  is this a JK or CY engine?  The
engine has a hydraulic head and my Bentley doesn't cover the hydraulic
head engines and I want to make sure the torque of 148 ft lbs with lubed
threads is correct (14 mm bolt).  Is there a different procedure than
what is in the Bentley manual?  I remember there has been some
discussion about this style of pulley coming loose and ruining a
perfectly good crank.
Justin

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