[s-cars] Cam chain question

[David Forgie]

Thanks Brian (and Chris M - offline).  I removed the OE AAN exhaust cam and was able to slip
 the chain off the exhaust cam sprocket. I had marked both the intake and exhaust cams and the 
chain so I just had to count teeth (6 from the "O" in my case), make a mark on the RS2 cam tooth
 and then line up the cam chain and install the RS2 cam. 

The only exciting bit was the fact that when I removed the exhaust cam, the intake cam rotated
 slightly (about 0.5 to 1 tooth). As a result, when I installed the RS2 cam to the marks on the cam
 sprocket and chain, the two respective "O" marks on the cam sprockets are NOT at the top of the
 head.  However, this is easily remedied when I install the cam sprocket and torque it properly (once
 the cam cover is back on).  I will be able to turn the cams slightly so they line up with the timing
 mark on the cam cover, like they did before I removed the cam cover (and the OE cam). 

Thanks for the hints.

Dave F.



----- Original Message -----
From: brian hoeft <qweblog at gmail.com>
Date: Saturday, July 24, 2010 1:01 pm
Subject: Re: [s-cars] Cam chain question
To: David Forgie <forgied at shaw.ca>
Cc: s-car-list at audifans.com

> From my experience Dave,
> 
> The only caveat I can think now to mention is that I pulled my 
> cams from
> another engine so sprockets werent removed.
> 
> No removable links im aware of.
> 
> Sprocket fit as original, and had the same timing reference as well.
> 
> Quite simple and stress free actually with much nicer power to 
> look forward
> to.
> 
> enjoy!
> -brian
> 
> 
> 
> .
> 
> 
> 
> On Sat, Jul 24, 2010 at 3:03 PM, David Forgie 
> <forgied at shaw.ca> wrote:
> 
> > While I am doing the timing belt (etc) on my 93 UrS, I am 
> installing an RS2
> > exhaust cam.
> > I am not sure if the cam chain has a removable link or not (I 
> think not).
> >  The question is,
> > will I be able to install the RS2 exhaust cam with the proper 
> alignment if
> > the cam chain
> > does not come apart? The Bentley seems to be silent on this 
> issue (AFAIK).
> >
> > I intend to mark the chain and the OE cam sprocket as to 
> position of the
> > chain on the
> > sprocket and I know that I need to line up the "O" on both 
> intake and
> > exhaust cams at the
> > top of the head (where they are right now). (I am not turning 
> the RS2
> > exhaust cam by a tooth,
> > as per RS2 installation - that would require an RS2 cam 
> position sensor
> > shutter wheel).
> >
> > Thanks in advance.
> >
> > Dave F.
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> 
> 
> 
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