OK- it turns out that the last time the fan extension was reinstalled (about
5K mile ago) the big bolt was not tightened completely. I noticed that it
was way loose when I took everything apart this time. Anyway, this allowed
the crank sprocket to work forward a bit. I never thought to tap it back
before I measured it with the straight edge.
When I replaced the sprocket this time, it went all the way on and now
aligns perfectly with the cam sprocket without the use of any shims.
I degreed the cam today. Took about 3 hours to get it right, but it feels
like a real accomplishment!
Thanks to all for the help.
Peter
'68 TR250
> From: Peter Macholdt <vze2846b@verizon.net>
> Reply-To: Peter Macholdt <vze2846b@verizon.net>
> Date: Sat, 16 Feb 2002 19:28:21 -0500
> To: 6pack list <6pack@autox.team.net>
> Subject: Crank shim correction
>
> I made a mistake in my last post. I was thinking about the number of shims
> needed to bring the crank sprocket out to the cam sprocket and realized that
> the crank sprocket was already out too far!! I either need to move the cam
> sprocket out (don't think this is possible) or grind a bit off the back of
> the crank sprocket.
>
> It was strange that there were no shims on the crank when I pulled the
> sprocket. Given that the cam sprocket is now about 0.015" further out (I
> used a thicket front plate gasket) and the crank sprocket is still too far
> out, I wonder how bad the alignment was with the old thinner gasket?
>
> I assume that the nose on all these cams are the same thickness?
>
> Again, thanks for all the help. I didn't expect to have all these little
> issues crop up.
>
> Peter
> '68 TR250
|