The differenence is probably how you number the cylinders. I believe GM
numbers are 1357 on the right side and 2468 on the left side. This results
in a firing order of 18436572. If you number them 1234 on the right and
5678 on the left then the new firing order is 18627345. Does that explain
the difference?
Bob Chansler
---------------------- Forwarded by Bob Chansler/Boulder/IBM on 04/15/99
12:03 PM ---------------------------
Tim Seawolf-Self <tim@Route66AutoClub.com> on 04/15/99 12:52:53 AM
Please respond to Tim Seawolf-Self <tim@Route66AutoClub.com>
To: oletrucks@autox.team.net
cc: (bcc: Bob Chansler/Boulder/IBM)
Subject: [oletrucks] Points>>>HEI Conversion
Varoooooommm!!!
First, I would like to thank all of those that responded.
A couple of things that I still don't understand about this learning
experience.
The problem seemed to be with the Firing Order.
The Firing Order that is cast on the intake manifold is:
1-8-4-3-6-5-7-2. However, the Firing Order that works is:
1-8-6-2-7-3-4-5.
I arrived at that firing order by looking at another engine, and when I
changed the plug wires to match, it started.
I haven't road tested it yet, but it is starting easier and running smother
than it did with the points.
It's been almost fifteen years since the truck has been on the road and now
it will have to wait a while more, until the price of gas goes down.
Thanks again,
Tim
tim@route66autoclub.com
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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