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Slow to turn over

CUAviator

CUAviator

"I wanna go fast..."
1965 Fastback with Ford Racing 306. When I start up for the first time of the day, it fires right up. The more often I start it as the day goes on, such as if I'm out running errands (parking as far away as possible from any other car), it takes longer and longer to light off. Typically, the warmer the day, the worse.

Does anyone know what could cause this. Most of the engine is within 3 years of new, as is the battery.

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Can you read out the computer ?
Looks to be a sensor.
Can you read fuelpressure ( do you have a dial for it )
synchronisation sensor or chrankshaft sensor.
just some ideas
 
Had a similar issue with my 68 (non-efi) last year. Turned out the be the engine ground was corroded. Replace it and added another ground to the front of the engine and have not had the started dragging issue since.
 
janschutz said:
Had a similar issue with my 68 (non-efi) last year. Turned out the be the engine ground was corroded. Replace it and added another ground to the front of the engine and have not had the started dragging issue since.
Click to expand...

good point !!
 
B67FSTB said:
Can you read out the computer ?
Looks to be a sensor.
Can you read fuelpressure ( do you have a dial for it )
synchronisation sensor or chrankshaft sensor.
just some ideas
Click to expand...
I don't have the ability for any of that, but my mech does. I'll drop those ideas on him, along with checking the engine ground.
Thanks for the inputs!
 
Heat will cause increased resistance in the wiring which leads to less power to drive the starter. I just spent an hour plus on the phone with who must be the most learned auto-electric guy I ever had the chance which whom to speak. He is also older and although I didn't ask, he covered all kinds of subject matter. This happened to be one area he was especially talkative about!

Make sure not only connections are good but also that your cables are in good shape. You'd be surprised what you find when you split open a cable sometimes. Corrosion you see on the ends often leaches WAY up into the cable.
 
As stated a bad cable or bad cable connection could be the issue. I'd first look to see if your positive cable is running too close to the exhaust. It looks like you have a trunk mounted battery. If so an undersized cable or bad connection certainly wouldn't help the situation.
 
Horseplay said:
Heat will cause increased resistance in the wiring which leads to less power to drive the starter. I just spent an hour plus on the phone with who must be the most learned auto-electric guy I ever had the chance which whom to speak. He is also older and although I didn't ask, he covered all kinds of subject matter. This happened to be one area he was especially talkative about!

Make sure not only connections are good but also that your cables are in good shape. You'd be surprised what you find when you split open a cable sometimes. Corrosion you see on the ends often leaches WAY up into the cable.
Click to expand...

This wasn't "Afterlife" that you talked to? *LOL*

I agree that heat on the starter and associate wiring is the most likely suspect.
 
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