Subject: RE: the reassembly starts
Author: Zerhackermann
Date: May 9, 2002, 1:42 PM
Post ID: 1710227707
Long ans the cam and crank are in the same positions when it went back
together it should be fine.
-----Original Message-----
From: Fred Sahms [mailto:fr-@fredsgarage.net]
Sent: Thursday, May 09, 2002 1:31 PM
To: Loopfram-@topica.com
Subject: RE: the reassembly starts
Yall got me worried now. When I disassembled the motor in the Eldo, I
put a small dremel mark on each tooth on the crank gear and on the tooth
they straddled on the cam gear, and a small mark near the hole in the
cam gear the dowel was in.
I used a NOS cam (the lobes were flayed on mine), and put the gear back
like they were. Is this not sufficient?
Zerhackermann wrote:
| 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 _________________________________________________________________ Send and receive Hotmail on your mobile device:http://mobile.msn.com |
73 Eldo in crates
78 T3/949