[Healeys] Still Missing under load 64 BJ8

[Dan Stromquist]

Roland:
1.  Only misses after warmed up and comes on gradually until I don't think I
can even make it back. 
2.  Does not seem to miss when it is cold but hisses, coughs and sputters
when I hit the gas hard while at idle even when warmed up for a few minutes
under no load (with the choke all the way out does help). We put in rich
needles in the carbs.  I am going to put a meter on the exhaust and check
the mixture at high speed load as well as at idle.  Even after fully warmed
up sometimes I think it is going to outright quit when I come to a stop
light and the RPM drops to about 500.
3.  It misses whether in overdrive or not but is much more noticeable under
load especially while in OD and running at around 2200-3000 RPM.  It does
miss at higher RPM but not as bad or noticeable it seems to me.
4.  The symptoms seem to subside when I let up on the load and cruise easy (
I baby it back home worried it will quit on me).
Dan



-----Original Message-----
From: healeys-bounces+dan=warner-associates.com at autox.team.net
[mailto:healeys-bounces+dan=warner-associates.com at autox.team.net] On Behalf
Of Roland Wilhelmy
Sent: Monday, July 28, 2008 11:56 AM
To: 'Austin Healey list'
Subject: Re: [Healeys] Still Missing under load 64 BJ8

Dan-

It certainly could be either faulty new parts or not quite rightly
installed good new parts.  Barring that ....

Maybe you could clarify your symptom description.
While cold, does the car start to miss as soon as you accelerate, or
does it only start to miss after it is warmed up?
If you pull the choke out do the symptoms go away?
If you leave it out of overdrive does it miss?
If you get the engine running above 3000 rpm, do the symptoms subside?
If you drive at, say 3500 rpm for a couple of miles do you get the
symptoms?
Are the symptoms dependent on the load on the engine, as in are they
dependent on how far down your foot is on the accelerator pedal?
Do the symptoms subside if you lift up a bit on the accelerator pedal,
or does it continue to run rough after that?


-Roland

On Mon, 28 Jul 2008 10:23:14 -0500, you wrote:

::My local shop here in Minneapolis cannot seem to figure out why the car
::misses under load.  After a good warm up, it seems to run great for a few
::minutes and it idles like a champ.  As soon as we hit the in town highways
::it starts to miss as soon as I accelerate, especially in the 2200 to 3000
::RMP range when I put it into overdrive and give it some gas.
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