----- Original Message -----
From: <IkeLevine@aol.com>
To: <triumphs@autox.team.net>
Sent: Monday, July 26, 2004 11:20 AM
Subject: idling difficulties
> I have a 74 tr6 which is having difficulty with the idling speed.
>
> We have eliminated stuck linkages or gas pedal. Once you start the car
with
> the choke, it revs at 2200 with the choke approximately 3/4 pulled out.
> After a five minute warm up period, if you pull the choke out the idle
speed
> will reduce to 1500 but if you put the choke in, the idle revs upward and
> stays close to 3000rpm.
> I have had this difficulty intermittently, especially after driving for a
> morning, turning the car off for a couple of hours then restarting. In
the
> past, if I applied some gas and rev up the engine a bit, the rpms would
reduce
> to normal, but lately, the engine will 'race' when in neutral and I can
drive
> nearly 45mph in third without the foot on the gas peddle. Very dangerous
as
> the brakes are working very hard against the engine to stop. I hesitate
to
> put it into neutral because sometimes the engine will rev up to 4000+.
Ike-
In addition to Dave Massey's post, be sure to torque the intake (and
exhaust) manifolds. They are notorious for loosening up and causing vacuum
leaks. Some of what you are describing may be due to a vacuum leak which
leans the fuel mixture and causes high idle.
Good luck-
Tim Hutchisen
71 TR6
80 TR7 Spider (for sale)
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