[Vwdiesel] New Diesel Guy With a Problem

[James Hansen]

Mark, try this and send pictures. Please. I have this mental image worthy of
a great vaudeville act... lol!
Works well enough to just run the tap in, and stuff a narrow blow gun in
each hole a few times, then clean the mess up.  Wrap a rag around the blow
gun when you pull the trigger to catch the crud that shotguns out of the
hole.
You could use a bottoming tap, or an old bolt with a grove hacksawn or
ground lengthwise across the threads to catch the crud much like a tap
flute. It is important to have the threads clean as far as the bolts goes,
which isn't completely to the hole bottom, so no, bottoming tap isn't
critical, but you would have to chase until the major diameter of the tap is
to where the bolt ends. Plug tap would be a nice compromise, as they are
easier to use, less chance of sticking or removing metal. It just has to
clean, not cut... Taper tap may not have full depth of thread threads far
enough down.
-James


>
> How about chasing the threads with the cylinder block upside down, so that
> everything
> falls out?
>
> > -----Original Message-----
> > From: Nate Wall [mailto:natewall1 at yahoo.com]
> > Sent: Monday, August 04, 2003 11:03 AM
> > To: LBaird119 at aol.com; vwdiesel at vwfans.com
> > Subject: Re: [Vwdiesel] New Diesel Guy With a Problem
> >
> >
> > <<<Be SURE to chase out, clean out, blow out the head
> > bolt holes/threads before reassembly or you run a good
> > chance of cracking the block.>>>
> >
> > Yea, like I did. I used an old head bolt to chase the
> > threads and sucked all the crud out w/ a soda straw
> > duct taped vacuum cleaner hose. And I still cracked
> > the block through a bolt hole the second time I
> > installed the head onb the old motor.
> >
> > Use a tap to chase the threads! Is a bottoming tap
> > needed?
> >
> > --Nate
> >
> >
> > --- LBaird119 at aol.com wrote:
> > > > Do these symptoms mean that I have a leak (head
> > > gasket) that is
> > > >  allowing high pressure gas from a cylinder to
> > > pump up the cooling
> > > >  system?
> > >
> > >   Yup, classic symptoms.  The black is carbon soot
> > > from the exhaust
> > > getting into the coolant it sounds like, rather than
> > > oil.  :)
> > >   Since it still runs, you may not need to surface
> > > the head but it needs
> > > checked since the tolerance for warpage is minimal.
> > >
> > > Or is there some less dire explanation?
> > >
> > >   Not really.  Hopefully it's the gasket, otherwise
> > > it'd have to be a cracked
> > > block or head.  Usually not likely unless it's
> > > really been overheated or
> > > the gasket's been changed carlessly.  You need new
> > > "stretch" bolts as
> > > well as the proper thickness head gasket (there are
> > > 3 possibilities).  Be
> > > SURE to chase out, clean out, blow out the head bolt
> > > holes/threads
> > > before reassembly or you run a good chance of
> > > cracking the block.
> > > >
> > > >
> > > >  A chronic diesel guy in Seattle.
> > >
> > >   You're only 2 1/2 hours from me!  :)
> > >      Loren
> > > _______________________________________________
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> >
> >
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