----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
I hate to even suggest it, but at this point I would check that the switch
is actually grounding the proper mag!
----- Original Message -----
From: "John Cooper" <[EMAIL PROTECTED]>
To: "Tech" <[email protected]>
Sent: Thursday, August 31, 2006 8:25 AM
Subject: Re: [COUPERS-TECH] Continuing Problem
----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
At 08:25 AM 8/31/2006, you wrote:
regroup and return to the basics rather than the exotics.
I agree. I think something must have been overlooked.
Did you duplicate the cold cylinder test on the "good" mag?
The Left (lower) mag/plugs operate in a leaner mixture than the
upper/right. If the left doesn't exhibit the problem then intake leaks
are likely not the issue.
Try wiring the left mag to the upper plugs and vice-versa.
When operating in the right mag, if the #4 cylinder is not firing is
should be VERY rough and I'd expect more than a 200 RPM drop.
==============================================================================
To leave this forum go to: http://ercoupers.com/lists.htm