Subject: RE: the reassembly starts
Author: Zerhackermann
Date: May 9, 2002, 12:30 PM
Post ID: 1710227244
Just to get you in the general area...the dowel pin us at about 10
o'clock when the marked teeth are at 6 o'clock.
The marked teeth on the timing gear are a pair and are meant to straddle
a particular tooth on the crank gear (presuming it is a geared and not
chained motor)
Or were you talking flywheel?
(a little slow today)
-----Original Message-----
From: joe jump [mailto:jum-@hotmail.com]
Sent: Thursday, May 09, 2002 12:19 PM
To: Loopfram-@topica.com
Subject: RE: the reassembly starts
Jeff,
The process is also described in the old Chilton's manuals,
which cover a number of different bikes from the era (might be available
in your local public library). The books call out special Guzzi tools,
but I think you might be able to do it using a degree wheel set up on
the crankshaft and a dial indicator set up on the rocker. You need the
specs, i.e., intake open @ XX deg before botttom dead center, closes XX
deg ATDC. Those specs rely upon a checking clearance (valve lash), and
hopefully they are listed too. I think I have the data somewhere-if you
can't get it I'll look around for them.
The cam gear is held on with a center bolt and a dowel pin. The gear has
5 different holes for the dowel pin, which is how you vernier in the
cam. The number of teeth on the cam gear (I seem to remember 72)does not
divide evenly by 5, so the drill is move the cam forward 1 dowel pin
hole, then rotate the cam back a number of teeth. with this method you
can degree in your cam within a degree or two.
If you have a feel for what I'm talking about, then this may be
sufficient. If not, contact me off-list. I went through this whole drill
last fall with my V7 Sport & I have some extensive notes written up on
it that may shed some more light on it. It's really not that tough once
you understand the process & you have the tools.
Joe in St Louis
jum-@hotmail.com
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