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TR6 TR6 Advice please: weak spark?

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CuriousGeorge

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TR6 Advice please: weak spark?

I was cruising on Sunday, having a ball. I put gas in the tank, and when I pulled out of the gas station she started sputterring. I had to step on the gas to keep her running. She would rev, then sputter, than she finally quit. My first thought was maybe the fuel pump, so I switched to the aux electric. Definately getting fuel. Checking the spark with a tester, it looks weak, and inconsistent, too few sparks happening. New rotor, no change. What next?
 
Re: TR6 Advice please: weak spark?

My gut reaction is almost always ignition, i.e., you've now tried two in a bad batch of rotors...there are a lot of bad rotors out there. But the fact that you note it happened as you pulled out from getting gas makes me wonder if you got some bad gas or stirred up something at the bottom of the tank?
 
Re: TR6 Advice please: weak spark?

CG,

I recently had a episode of sudden onset misfire syndrome. It would sort of run on a few cylinders then quit. I hooked a spare sparkplug to a plug wire and got a decidedly weak intermittent spark. After replacing the condenser I got a strong spark that snapped. The car fired right up.

The orange wire going into the condenser was loose, so there was some sort of internal failure. The condenser wasn't more than a few hundred miles old - must have come from a bad batch. The one I replaced it with has a black wire - not scientific but has anyone else had a condenser go bad...and what color was the wire?

Jeff
3xTR6
 
Re: TR6 Advice please: weak spark?

I had a similar experience after filling up. The thought of an ignition problem didn't occur to me, although the fuel supply did. I knew that I had overfilled the tank, so I popped open the gas cap and things cleared up.
When I got home I tried to blow air (by mouth) into the gas tank vent that went to the Carbon Canister. I could tell that the extra gas had found it's way into the vent line causing a vacuum when the gas level in the tank began to drop.
Got out the air compressor and blew that gas back into the emission seperator and from there back into the tank.
I tend to overfill with gas because out here it's a 20 mile drive,one way, to the gas station.
Might be worth checking.
 
Re: TR6 Advice please: weak spark?

Ok, Tom, now I know for sure you were a farmer.
 
Re: TR6 Advice please: weak spark?

I just had a mysterious case of "no starts" after the car show. Changed the fuel pump. Dummy. That was fine. With the advice of a friend, I checked for spark and found I had none.
Found that I had one of Jeff Schlemmer's new super-duper point sets that went bad. Jeff was as flummoxed as I was. Dropped a Pertronix in and off she went. Guess I will go back to electronic ignition, hate that because I am old school, or is it just old......
 
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