cold start

a49deere · Jan 7, 2018

how do you know if the cold start is working on ford 3910? have voltage at terminal? amp check on circuit?

Welding man · Jan 7, 2018

Pull the air intake elbow off and look inside while having some one hold the key in the start position with the hi-lo in gear. It will light up and smoke, might even catch on fire.

a49deere · Jan 7, 2018

does the hi/lo need to be in gear for cold start to work? thkxs

RickB · Jan 7, 2018

Thermostart will work regardless of shifter position.

Bern · Jan 7, 2018

Agree with welding man about the visual test. You'll know you have a good one if you get at least 6" worth of flame coming out!

That said, you shouldn't have to keep it in gear to activate the thermostat. There should be a dedicated key switch position for it, either to the left of the off position, or else just before the crank position. Both will be spring loaded.

markct · Jan 7, 2018

It better catch fire or it's not going to do much!

Welding man · Jan 7, 2018

It doesn't but most people cannot tell where the thermostart position is and start cranking the engine. You do not need the engine cranking over to check the thermostart. That is why I leave it in gear. I haven't seen one of the old switches that you turn to the left to start in years. About all of those have been replaced.

David G · Jan 8, 2018

I can hear mine poof when it lights

a49deere · Jan 8, 2018

thanks. pulled off elbow and sure enough so smoke and fire. guess its working. Thks

cold start

a49deere

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Welding man

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a49deere

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RickB

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Bern

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David G

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