Re: Potential Large Problem? (Long)

[Dan Bubb <jdbubb@ix.netcom.com>]

I agree with Chris. Any slop in the keyway in the crank will cause a
never ending problem. You'll have to replace the crank or have your
current one welded and remachined. Had this same problem in my 79
Scirocco and I ended up replacing the crank.
Dan

Chris Jung wrote:
> 
> I had that problem with a motorcycle that I had at one
> time.  I changed the woodruff key, pulley , and used
> lots of loctite in the keyway; and it would cotinue to
> chew up the woodruff key.  I had to tear the
> motor/trans completely down and change the crank.
> There was too much clearance in the keyway of the
> crank from the first time that the pulley slipped for
> whatever reason.  So, unfortunately, that sounds bad.
> 
> Chris Jung
> '83 Scirocco GT Wolfsburg
> '81 Kawasaki KZ550
> 
> --- Paul Maione <paulmaione@videotron.ca> wrote:
> > hey there everyone.
> >
> > my 16v is totally wacking me. i'll give the run down
> > how it's gone down the past couple of days. saturday
> > i install my cams with nigel. after 6 hours,
> > everything is dialed
> > in and ready to go. timing done, all is good. it was
> > raining by the time i
> > finished, so i
> > really dind't have time to real see how it is. i get
> > in the car
> > the next morning, i leave home and head off. it
> > starts raining
> > again hardcore, so i was easy. slowly as i drive i
> > notice the
> > car getting slower and slower. eventually it gets to
> > the point
> > where i can't get it out of nigel's drive way. we're
> > all wacked
> > out, checking fuel mixture, nothing. what it was
> > doing there
> > was taking FOREVER to rev up to 3000 rpm's, but
> > after that
> > i rang up sweet. i check the computer, change both
> > fuel
> > pumps, everything i can think of. nothing. i
> > disconnect the
> > 02 sensor and make it run CIS so i can limp it home.
> >
> > i take it to work next day (all wacked out) so for
> > fun, i check
> > the timing. holy shit! i was two teeth off. set it
> > up, and it's all
> > good. MEGA BLASTAGE. nice nice nice. i start taking
> > itto my
> > friend's house and i notice that i'm losing power
> > again. WTF?
> > could it of slipped? who knows. it once again
> > eventually gets
> > to the point where i didn't want to drive it.i get
> > it towed back
> > to work and check the timing again. THREE teeth off!
> > WHA??#
> > i think to myself something must be wrong. what we
> > tried doin is lining up
> > the bottom with the top.
> > when we got the mark on the flywheel, and looked at
> > the arrow
> > on the bottom cover, it wasn't there. it was WAY
> > off.i take all the pulleys
> > and everything off to check the timing belt. looks
> > fine, then i
> > spin the crankshaft pulley bolt. spins right off!
> > SHIT@(*%&#(*
> > i take it off and the woodruff had been totally
> > chewed up. gone.
> >
> > so i freak.
> >
> > i go out and get a new pulley, bolt, and timing
> > belt. i start
> > throwing it back together, the woodruff slips right
> > into the
> > slot again no problem. the crank when the woodruff
> > slips on
> > way *minorly* dented, but everything feels good. i
> > put locktite
> > on the bolt and impact it on into an oblivion. got
> > everything
> > setup again, and leave work again. guess what? same
> > thing
> > happens again. bring it back. got totally wacked out
> > and
> > just left it there. now, what are the chances that
> > it ate through
> > the woodruff agian? could of slipped the belt? i
> > checked it again
> > when i brought it back fast and i noticed i was two
> > teeth off on
> > top.
> >
> > now what is the worse possible scenario?
> > change the crank? machine a large woodruff?
> >
> > it's all wacked.
> > i'll check it again over tommorow, but i just wanted
> > to get
> > some input on this.
> >
> > thanks for listening
> >
> > paul
> > 87' Scirocco16v
> > 86' dirtrocco
> >
> >
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> >
> 
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