[Vwdiesel] Walking timing belt

[Joe]

Thanks for the many excellent replies.  To answer the various questions:
 
1. no, the crank pully doesn't wobble.  In fact, the only pully with a
slight wobble is the crank v-belt, but it's minor.
2. pump was replaced by the previous owner... a DIY install.  
3. a mechanic I trust (with lots of VW experience) has told me to consider
selling the car due to it's over-all poor condition.
 
And yes, I'm in PA (south central - town called York) which goes back to my
mechanic's suggestion.  I asked him to give it a pre-inspection and it's not
good... needs floorboards on both sides to pass inspection this fall, along
with likely an entire new exhaust system.  I bought this car off of Ebay
last summer in a fit of temporary insanity.  (end of the world kind of
insanity - this car will run off of home heating oil)  Flew out to Madison,
WI and DROVE it home.  Had a friend of a freind of a friend in Pittsburgh
give it the first PA inspection sticker (I think he basically just looked at
it and said "yeah, it's a VW" and gave it a sticker.)  I didn't ask.  It has
a reman IP, and all new German struts on all 4 corners (only have the
reciepts for the fronts).  The rest has been beaten repeatedly with a HUGE
ugly stick.  (will likely never buy a car on Ebay again)  Oh, my tech thinks
the engine is likely out of a Dasher because it has a Dasher oil pan.
 
I'm not (quite as) insane anymore, and am now reluctantly thinking I may in
fact have to sell the car again.  It leaks oil like a sieve (add a quart
every 500 miles) and after crawling under it yesterday I see it may in fact
have a slight leak of tranny oil too (wasn't dirty oil).  The bottom line is
I don't have the funds to fix it, and I have other, more reliable vehicles
to drive.  I had just replaced the grill and turnsignals too...  and the
dash isn't even cracked (though discolored).  No headliner, ripped driver's
seat, dents everywhere, front driver jack point unusable, drips water onto
the passenger's feet when it rains, etc, etc, etc......
 
Anybody need a running, driving parts car?  1982 Rabbit 2 door n/a.
 
Joe
 

  _____  

From: Andrew .Libby [mailto:libbybapa at gmail.com] 
Sent: Friday, May 28, 2010 12:20 AM
To: Kneale Brownson
Cc: Joe; vwdiesel at vwfans.com; Chris Geiser
Subject: Re: [Vwdiesel] Walking timing belt


Certainly pump bushings should be checked along with not over-tightening the
timing belt.  Belt tracking, although potentially related, is a different
issue.  It is easily adjusted by the orientation of the injection pump
mounting bracket.  To adjust the tracking so that it moves closer to the
engine the sprocket end of the injection pump needs to move *down* and the
end where the metal lines are attached to the pump needs to move *up*.
Moving the sprocket up and the metal line end of the pump down causes the
belt to track away from the engine block.  Therefore, when the pump bushings
wear, the belt does not tend to ride off the injection pump sprocket and so
the belt riding off the sprocket is not typically an indication of pump
bushing wear.  To adjust the pump mounting position on the 1.6 one can
loosen the two bolts that are behind the injection pump (three on the 1.9)
that mount the pump bracket to the block.  With those two bolts loosened,
the pump bracket can be moved up or down as necessary.  The bolt holes are
considerably larger than necessary to accommodate that action.  In my
experience, it is possible with a c-shaped wrench to access those two bolts
with the pump in place, but downright difficult.  Whenever the pump bracket
has been off or the pump itself is swapped it is very common to need to
adjust the tracking.  It really should be adjusted so that it does not rub
on any of the lips of the pulleys or on the back of the crank pulley as it
will wear significantly faster that way.  I actually cut a section out of
the timing belt cover and glued on clear acrylic in order to be able to
easily see that belt tracking is correct without removing the timing cover.

Andrew


On Thu, May 27, 2010 at 7:10 PM, Kneale Brownson <knealeski at sbcglobal.net>
wrote:


When you watch the engine run, is there a wobble in the vibration
damper/timing belt pulley on the crankshaft?
 
My 95 Jetta 1.9 turbodiesel had a wobble from the damping material in that
pulley failing, and the belt would not run true.

--- On Thu, 5/27/10, Chris Geiser <cfgeiser at gmail.com> wrote:


From: Chris Geiser <cfgeiser at gmail.com>
Subject: Re: [Vwdiesel] Walking timing belt
To: "Joe" <joe at haasenpfeffer.com>, vwdiesel at vwfans.com
Date: Thursday, May 27, 2010, 7:59 PM



That should never happen - something must be loose... Pump mounting braket
or rear/bottom bolt?


Chris




-----Original Message-----
From: Joe <joe at haasenpfeffer.com>
Sent: Thursday, May 27, 2010 6:31 PM
To: vwdiesel at vwfans.com
Subject: [Vwdiesel] Walking timing belt

I've got an '82 Rabbit n/a and the timing belt is slowly trying to walk off
the front of the injector pump pully.  The flanges on the intermediate shaft
are holding it in place, but even THAT has a gouge in it and it's slowly
eating the timing belt.  I did NOT install the timing belt, nor do I feel
comfortable (at this point) in attempting it.  But if there is an adjustment
I can do without having to pull the belt, I'm all ears.

Joe

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