new electronic ignition (was doing it with points etc. as well) new plugs,
reasonably new sport coil....
----- Original Message -----
From: "Simon Matthews" <simon.d.matthews@gmail.com>
To: "Malcolm Jeffcock" <msjeffcock@eastlink.ca>
Cc: <mgs@autox.team.net>
Sent: Monday, August 16, 2010 4:10 PM
Subject: Re: [Mgs] hesitation
What is the old truism about 90% of fuel problems turing out to be
ignition problems?
I would check the ignition system over fully. It's possible that it
has enough energy to produce a spark at small throttle openings, but
when you accellerate, more air goes into the cylinders, producing a
higher pressure, which requires a higher voltage to get a spark.
Simon
On Mon, Aug 16, 2010 at 8:29 AM, Vance Navarrette
<v.navarrette@comcast.net> wrote:
> Malcolm:
>
> First thing to check is that you have sufficient oil in the
> dashpots of your carbs.
>
> How are your air filters? A heavy load of filth in them can
> starve the engine for air.
>
> Try going back to conventional ignition to insure that your new
> fangled electronics are not the source of the issue.
>
> Vance
>
> -----Original Message-----
> From: mgs-bounces@autox.team.net [mailto:mgs-bounces@autox.team.net] On
> Behalf Of Malcolm Jeffcock
> Sent: Sunday, August 15, 2010 6:29 PM
> To: mgs@autox.team.net
> Subject: [Mgs] hesitation
>
>
> well as some know I have installed a "new" engine which I must say is
> pretty good-compression of 150lbs across all 4. I have had electronic
> ignition installed and that's fine but I am having a hesitation problem.
>
>
> When cold its ok or driving around town with a constant variation of
> revs but once I start to cruise along with revs at say 3300 and then I
> try to accelerate I have hesitation, at time severe, it also seems to be
> brought on if I go up a hill as driving at steady rev level, it feels
> like it is only running on 3 or 2 cylinders when this happens, feels
> just like when head gasket went in the past. If the car is idling in
> driveway I can rev engine to high revs without a problem Could it be a
> situation of the fuel pump being able to provide enough fuel but not
> being able to respond to the additional demand for fuel as required for
> acceleration?
>
> <snip>
>
> Malcolm
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