I have tried it with and without ballast resistors and with new ones, to no
avail. Joe(B)
-- \"John Kipping\" wrote:
Presumably it's nothing to do with a ballast resistor in the circuit?
John Kipping
----- Original Message -----
From: "Joe Boruch"
To:
Sent: Tuesday, August 09, 2005 5:08 PM
Subject: Engine won't run
> This past weekend I showed up at the SCCA regional at Lime Rock only to
have may car not start in the morning. It would start for about 1 second
and then die off. Checked carbs and there was plenty of fuel in the bowls
and I would see it in the jets. Fuel flowed freely thru the needles.
Swapped plugs, plug wires, cap and it did the same thing. Swapped coil,
still the same. Swapped condensor and it started ok. Went back to the
original coil and nothing more than 1 second again.
>
> I went out for practice and could not get over 5000 rpm without it
breaking up. EGTs were low on the rear cylinders and I realized that while
playing with the floats I set the rear float too high. I lowered it,
disconnected the rev limiter and qualified great and got the Pole with a
1:02.7. Next day for the race, the car ran great for 2 laps than a miss
started and got worse and worse. I stayed out for the 20 laps, but the car
stalled coming into the paddock and would not start. I did manage to set
fast lap with a 1:01.9 in the short time that the car ran fine.
>
> Next day I found that the timing was very retarded. Advanced it and the
car started and ran great. I run a Mallory Dual point. Why did it retard
during the race? I tore the dizzy apart and found that an advance weight
had been cutting into the housing throwing metal around. I am pretty sure
that this is why it retarded during the race.
>
> I cleaned up the dizzy and adjusted the advance stops so that the weight
will not rub on the housing, but now the car will not run again, just like
it did before practice. It will start for a second and die. I have been
swapping parts, but still it will not run.
>
> There is continuity in the ignition system where it should be and no
leakage to ground. Tried other coils and condensor and wires and rotor.
When cranking the dwell meter shows a steady dwell where it should be. Rev
limiter is still disconnected. Carbs have full bowls and fuel visible in
the jets.
>
> It seems like I am chasing my tail. Anybody have any ideas? I am
wondering if the vernier cam sprocket may be slipping? Maybe I should pull
the timing cover off anyway to check for sheared keyways? Joe(B)
>
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