[Vwdiesel] rabbit head

[peter blake]

James,
  Good answer, makes sense to me.  Might not ever have
to find out if I get my hands on a 1.9. Tho I would like
to put it back together someday.
Peter

--- On Sun, 1/22/12, James Hansen <jhsg at sasktel.net> wrote:

> From: James Hansen <jhsg at sasktel.net>
> Subject: RE: [Vwdiesel] rabbit head
> To: "'peter blake'" <pila47 at yahoo.com>
> Cc: "'diesel'" <vwdiesel at vwfans.com>
> Date: Sunday, January 22, 2012, 9:53 PM
> Short answer, probably.
> No harm in trying it, but when you start the car, have the
> top belt guard
> off, and look at it.  If it runs off, the bushing is
> killed, and will
> probably eventually leak, as the seal usually follows the
> bushing in time.
> Also listen, you can hear when the belt is tight, it whines
> usually.  IF it
> runs true, inspect frequently for a while, and if okay,
> great!
> -j
> 
> -----Original Message-----
> From: peter blake [mailto:pila47 at yahoo.com]
> 
> Sent: January-22-12 11:31 PM
> To: James Hansen
> Cc: diesel
> Subject: Re: [Vwdiesel] rabbit head
> 
> James,
>   That makes total sense to me. What bothers me is
> that one
> of my friends, a long time vw mechanic, insisted that I had
> set
> the timing belt too loose. Sooooo, I let him snug it up
> more
> than I had originally set it. I should have trusted my own
> judgement it seems.  One question, does the pump now
> need to
> be rebuilt?  I'm probably not going to mess w that
> engine much
> anymore anyways.  I'm trying to get my hands on a
> 1.9td as I
> type.  Hopefully, there will be one heading my way
> shortly.
> Peter
> 
> --- On Sun, 1/22/12, James Hansen <jhsg at sasktel.net>
> wrote:
> 
> > From: James Hansen <jhsg at sasktel.net>
> > Subject: Re: [Vwdiesel] rabbit head
> > To: "'diesel'" <vwdiesel at vwfans.com>
> > Date: Sunday, January 22, 2012, 9:23 PM
> > Sorry to hear of this Peter.
> > Probably too tight a belt, you get wear on the
> injection
> > pump input shaft
> > bushing, and it pushes the belt off as the pulley
> tips.
> > Belt should be final tight when cold so that you can
> still
> > slide the belt
> > back and forth on the grooves of the cam sprocket. 
> > Since the motor grows
> > taller when it heats up, you set this cold.  If you
> > can't slide the belt
> > around at all on the cam sprocket, it's too tight. 
> > The new tensioners are
> > spring loaded, but the old ones, you have to do it
> just
> > so.
> > 
> > Other reason is the injection pump bracket might be
> loose,
> > or loose bolts
> > holding the pump, particularly the one closest to the
> > injector pipes.
> > 
> > You should be able to make one head out of the two,
> but
> > that was a pretty
> > hard tap dance.  As long as the lifter bores are
> still
> > good, you should be
> > okay and just swap parts.  I would be tempted to
> renew
> > the exhaust valves,
> > as they get the hardest life.
> > -james
> > 
> > -----Original Message-----
> > From: vwdiesel-bounces at vwfans.com
> > [mailto:vwdiesel-bounces at vwfans.com]
> > On
> > Behalf Of peter blake
> > Sent: January-22-12 10:59 PM
> > To: diesel
> > Subject: [Vwdiesel] rabbit head
> > 
> >   So I now know what happens when the timing belt
> > jumps a tooth 
> > or two.  The exhaust valves did a tap dance on the
> > pistons and
> > managed to snap the cam at the no. 1 cylinder.  
> >   The real question is why my new belt walked off
> the
> > pulley and
> > self machined against the cover.  When I pulled the
> > cover off the
> > belt was about 1/2" wide and loose. I haven't
> investigated
> > further.
> >   I cleaned the top of the block and the bottom of
> the
> > head and
> > tried to slip in a .003" feeler gauge and couldn't. 
> > So I'm hoping
> > it is still flat enuf to be usable.  
> >   My plan now is to take the head off the Jetta,
> which
> > has the burnt
> > out injector hole and remove the valves followers and
> > camshaft and
> > use them in the rabbit head.  And then put that head
> > on the Jetta so
> > that I have at least one functional vehicle.
> >   A couple of problems I have r removing two of the
> > followers from
> > the head.  The valves punched up far enuf to put a
> > crown in the face
> > of the follower.  The other problem is whether or
> not
> > I can even use
> > the valves at all. I'm hoping to just lap them in and
> be
> > done with it.
> > Any thots as to why the belt would walk off the
> pulleys and
> > then 
> > stretch?  New belt new water pump and new tensioner,
> > why wouldn't
> > it track straight?  
> > Peter
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> 
>