Nick-
Using Rogers method below, select the closest TDC sprocket
orientation with any errors in favor of advancing the valve timing. ie.
intake valve opens sooner as engine turns in correct direction.
Bob Westerdale
-----Original Message-----
From: Roger Elliott [mailto:relliott@cjnetworks.com]
Sent: Thursday, October 28, 1999 11:55 AM
To: nick glase
Cc: triumphs@autox.team.net
Subject: Re: BASIC TIMING QUESTION
Nick,
You can flip the timing gear over both on a verticle axis and a horizontal
axis to get various positions on the cam.
Roger Elliott
On Thu, 28 Oct 1999, nick glase wrote:
>
> fellow listees,
> i'm currently rebuilding a spitfire 1500 motor. i've renewed almost every
> single part that could wear (including crank and cam sprockets and timing
> chain). my haynes manual said that the correct cam postition to parallel
> the crank's TDC was where the cyl. no. 4 "exhaust is just begining to
close
> and the inlet is just begining to open." well i took my dial calliper and
> precisely found this position. however, when reinserting the chain, the
> accuracy is sacrificed a bit by the limited number of cogs on the chain
> (it's probably a good 3-5 degrees off). this is my first from scratch
> engine rebuild. can anyone offer some good fool proof timing tricks?
>
> thanks in advance,
>
> nick glase
>
> 79 spitfire
>
>
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