Topica Loopframe_Guzzi Archive


Subject: Re: Idle Speed - Valve Adjust

Author: John Chicoine

Date: Jun 1, 2005, 1:42 PM

Post ID: 1718957958



Ted:

As others have explained TDC is the point where both the intake and exhaust
valves are closed and maximum clearance between the rocker arm lash bolt and
the valve stem occur.

I use a narrow 6 inch metal scale that I insert into the spart plug hole as
I'm rotating the engine using a rachet on the crank nut. As it approaches
TDC I carefully watch the graduations on the scale rise past a given point
on the head. When the scale stops moving I know I'm at TDC.

After adjusting the valve clearance I rotate the engine a couple of times by
hand and repeat my work to make sure I've got the valve clearances set
correctly.

John C.
----- Original Message -----
From: "Ted Ward" <ju-@astrocomma.com>
To: <Loopfram-@topica.com>
Sent: Wednesday, June 01, 2005 2:25 PM
Subject: Re: Idle Speed - Valve Adjust


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I'm just curious, does it really matter if it is on the compression
stroke? Doesn't the cam push the same distance regardless of the stroke
its on?

Cam Conklin wrote:
 http://www.motoguzzishop.com/Big_Daddy/Big_Daddys_Workshop.htm

AJ,

This site was a big help when I learned to re-torque heads and adjust
the valves. Find TDC by looking into the plug hole for the piston head
at its highest point on the compression stroke. Also, get the valve
clearances for your Ambo. Eldo is 6 for intake, 8 exhaust. The ones
given here are way to tight, and a different engine. To be done on a
stone cold motor.

Cam in NJ
'74 Eldo Police

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