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Old 06-24-2020, 10:36 AM   #1
moonraker
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Default Problems starting when hot

Dear friends, I took my '39 Fordor for a short trip around Moscow and everything was fine until I got stuck in a traffic jam. The temp crept to ~200 degrees. Then I accidentally stalled the engine and it didn't want to start with a starter. The smell of gas was an indication of no spark. I asked bystanders to push the car and it started immediately. Can you tell me what the cause possibly be?
Thanks in advance!
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Old 06-24-2020, 10:39 AM   #2
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Default Re: Problems starting when hot

Any loose wires or bad grounds?
Did you "pop the clutch" to get it started again while being pushed?
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Old 06-24-2020, 11:08 AM   #3
moonraker
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Default Re: Problems starting when hot

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Originally Posted by 19Fordy View Post
Any loose wires or bad grounds?
Did you "pop the clutch" to get it started again while being pushed?
All wires look fine, I have battery kill switch on ground terminal with ground two ground wires - one to the body and one to the stud on a passenger cylinder head


Can you explain what "pop the clutch" means? I press the clutch, shifted into the second gear, once people pushed the car fast fast enough, I released the clutch - it started right away.
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Old 06-24-2020, 11:14 AM   #4
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Default Re: Problems starting when hot

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Originally Posted by moonraker View Post
All wires look fine, I have battery kill switch on ground terminal with ground two ground wires - one to the body and one to the stud on a passenger cylinder head


Can you explain what "pop the clutch" means? I press the clutch, shifted into the second gear, once people pushed the car fast fast enough, I released the clutch - it started right away.

That would be popping the clutch
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Old 06-24-2020, 11:20 AM   #5
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Default Re: Problems starting when hot

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That would be popping the clutch

thanks for clarification!
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Old 06-24-2020, 05:05 PM   #6
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thanks for clarification!
To me popping the clutch means to push or let the
car roll down a hill with clutch pushed in and when
it is rolling take your foot off fast and the engine
turns over and hopefully starts. When I was 16 this
was the normal method of starting every day, never
had a good battery. G.M.
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Old 06-24-2020, 11:15 AM   #7
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Default Re: Problems starting when hot

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Originally Posted by moonraker View Post
All wires look fine, I have battery kill switch on ground terminal with ground two ground wires - one to the body and one to the stud on a passenger cylinder head


Can you explain what "pop the clutch" means? I press the clutch, shifted into the second gear, once people pushed the car fast fast enough, I released the clutch - it started right away.
This is what it means in American slang.
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Old 06-24-2020, 11:24 AM   #8
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Default Re: Problems starting when hot

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This is what it means in American slang.
Thanks! a new entry in my vocabulary of American slang. "Pop some tags", "pop the clutch"...
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Old 06-24-2020, 12:18 PM   #9
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Thanks! a new entry in my vocabulary of American slang. "Pop some tags", "pop the clutch"...
Ok, now I have to ask, what does "Pop some tags" refer to?
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Old 06-24-2020, 10:59 AM   #10
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Default Re: Problems starting when hot

When you indicate that it did not start , would the engine turn over with using the starter and engine would not start or did the starter not even turn over the engine.
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Old 06-24-2020, 11:03 AM   #11
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Default Re: Problems starting when hot

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When you indicate that it did not start , would the engine turn over with using the starter and engine would not start or did the starter not even turn over the engine.
Vic
Sorry, forgot to mention - the starter had difficulty turning the engine the first one or two turns and then it continued to turn the engine with now problems, as fast as it does when cold.
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Old 06-24-2020, 11:04 AM   #12
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Default Re: Problems starting when hot

do they have reg gas in russia or the ethnal crap if you pushed it & it started it might have flooded or the gas boiled
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Old 06-24-2020, 11:12 AM   #13
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Default Re: Problems starting when hot

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do they have reg gas in russia or the ethnal crap if you pushed it & it started it might have flooded or the gas boiled
we are lucky so far - no ethanol gas in mandated and sold in Russia. In some rural areas you can still get 78 octane gas, but it's being phased out by refineries.
I don't think I flooded it since I know how to start hot carburated engine - with the gas pedal held to the floor
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Old 06-24-2020, 12:42 PM   #14
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Default Re: Problems starting when hot

Sounds like a marginal coil to me. The coil becomes hot and looses some of it's "zing". It will run all right when it's the only thing taking electricity, but when you add up the extra load imposed by starting a hot engine, there's just not enough there to turn it over and produce enough spark from a coil in a degraded condition.
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Old 06-24-2020, 01:17 PM   #15
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Default Re: Problems starting when hot

moonraker, I suspect that your starter needs to be rebuild or that your battery needs replacement. With a good fully charged battery the starter should keep cranking.
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Old 06-24-2020, 01:49 PM   #16
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Default Re: Problems starting when hot

Check the ballast resistor under the dash, if it has one. My 41 would do the same as what you described. I cleaned all the grounds and connections on the fuse block where the resistor is locatedfd and no more hard hot starts. Do this first before buying more parts. Good luck Al
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Old 06-24-2020, 03:09 PM   #17
moonraker
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Default Re: Problems starting when hot

Thanks everyone for your input, I really appreciate this!
the battery is fresh, the starter has about 2000 mi on it, should be fine.

I'll start with checking ballast resistor and all the wires. Can this problem be attributed to a coil condenser?
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Old 06-24-2020, 03:14 PM   #18
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Default Re: Problems starting when hot

....

Last edited by Will D; 06-24-2020 at 03:15 PM. Reason: Oops
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Old 06-24-2020, 03:20 PM   #19
moonraker
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Default Re: Problems starting when hot

Ok, I don't have a spare coil, but I have a spare condenser. I'll replace it and see if it helps
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Old 06-24-2020, 06:05 PM   #20
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Default Re: Problems starting when hot

Pop the clutch. = lift your foot off the clutch pedal quickly. Also known as dump the clutch.
To start while pushing - push start or sometimes bump start.

If it started when push starting, but not when using the starter to tun the motor it might indicate a heavy current draw on the starter. Poor earth (ground) maybe?

Plenty of volts in the battery to start it when pushing, not enough volts left for the ignition when starting on the starter.

You said slow to turn at first. Could also indicate poor earth. Don't forget where the starter bolts to the oil pan needs to be clean metal, not painted.

Lots of heat in the starter won't help. Lots of heat under the hood when in heavy city traffic.

If running in heavy traffic don't switch off if you can avoid it.

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