16V Timing question... again

[jason at scirocco.org (Jason)]

At 08:21 PM 7/12/2003, Ryan H wrote:
>So do you think it's safe that I lined the cams up by the dots only since 
>the sprocket was off?  Can the dots be off by any factions of an inch from 
>where they are supposed to be on the CAM?
>And just to be sure, the V notch on the flywheel is the 6' advance mark, 
>and the little hole mark to the right of it (which I don't have) is the 
>TDC mark, right?

Be really careful using the flywheel marks!  I just watched a guy destroy 
his head at our shop here because he didn't listen to me, and used his 
flywheel to time the car.  Sure enough, some dipsh*t previous owner had put 
the flywheel on 180' off, and *crunch*.

Use the screwdriver in the #1 cylinder hole...

Jason





> >
> > From: "Michael Abatzis" <abatzis2@hotmail.com>
> > Date: 2003/07/12 Sat PM 07:48:35 EDT
> > To: rhock99@epix.net,  scirocco-l@scirocco.org
> > Subject: Re: 16V Timing question... again
> >
> > not sure whether you're talking about the "dots" on the cam chain 
> sprockets
> > (which should line up exactly with the head, otherwise your cam chain 
> is off
> > by a tooth and you need to take the cams out and readjust) or the mark on
> > the timing belt cam sprocket that lines up with the valve cover (this is
> > what i think you're talking about, and is frequently off by some 
> fraction of
> > a tooth). this is TDC, and should line up with your mark on the flywheel
> > when you put the timing belt on.  the second mark is for ignition timing,
> > which you'll also need to set. you can do that either with an adjustable
> > timing light (set it to 6' and line up your only mark) or make a second 
> mark
> > x mm away from the first (bentley has the exact number) and time with a
> > static light. hth,
> >
> >
> >
> > -Michael Abatzis
> > New Orleans!
> > 1988 Scirocco 2L 16v RIP-->parting, finally taking orders:
> > www.learnlink.emory.edu/~mabatzi/mikes_page1.html
> > 1987 Scirocco 2L 16v...
> >
> >
> >
> >
> > >From: Ryan H <rhock99@epix.net>
> > >To: scirocco-l@scirocco.org
> > >Subject: 16V Timing question... again
> > >Date: Sat, 12 Jul 2003 0:14:34 -0400
> > >
> > >OK, this is weird.  When I line the cam sprocket up to the top of the 
> head
> > >(or valve cover), the chain gear mark is below the head by about .5 
> tooth.
> > >Could TT have tapped the chain wheel on slightly off, or is this a 
> precise
> > >process with a no-tolerance key notch?  Or could my cam sprocket have 
> gone
> > >on slightly off?  It seemed to fit good.
> > >I have no idea what's going on with my timing.  I only have one notch 
> in my
> > >flywheel.  When the cams are TDC (according to the chain wheels), I put
> > >this notch in the center of the hole (where the bellhousing mark is
> > >supposed to be which I don't have either).  I think that is off by 6
> > >degrees, but if my chainwheels are off anyway, the whole process is 
> shot to
> > >hell.  Damn timing.
> > >
> > >
> > >
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>
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