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Re: Engine won't run

To: billsohl@mindspring.com
Subject: Re: Engine won't run
From: "Joe Boruch" <jaboruch@netzero.net>
Date: Tue, 9 Aug 2005 19:04:29 GMT
Yes, that is my plan for tonight's crack at making it run.   Thanks.  Joe(B)

-- \"Bill Sohl\"  wrote:
Joe,

Do you have a complete spare distributor?  Perhaps
even just a stock one.  If yes. I'd swap the whole
distributor to see if it then starts/runs to either
ID the Mallory distributor as the suspect or not.

Cheers,
Bill Sohl

----- Original Message ----- 
From: "Joe Boruch" 
To: 
Sent: Tuesday, August 09, 2005 1:08 AM
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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