 Starting six when cold, Strange phenomena |
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| gereed75 |
 Dec 29 2019, 05:49 PM
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#1
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Senior Member  Group: Members Posts: 1,329 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States 
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Car seems to start normally when warm
When cold (40 degrees or below) I can get car to start hesitantly after numerous pedal pumps to prime. It begins to run when motoring starter but as soon as I release key to run position the engine suddenly dies abruptly as if being switched off. I can eventually get it to run after very persistent motoring on the starter until it begins to clear and will finally run in the run position . It just seems that the run/ignition circuit is significantly weaker in the run position than in the start position, like maybe the run contacts are high resistance or bad ground?? Are there two separate contacts in the ignition switch?? One for run and one for run/start?? Can the switch be opened and checked/cleaned?? Thanks. |
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| PlaysWithCars |
Jan 1 2020, 12:04 PM
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#2
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Senior Member Group: Members Posts: 531 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest
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Definitely would try jumping 12v to the ignition before diving into the switch. I'm struggling to understand how there could be a relationship between the switch function and temperature. If the switch works when warm, I don't see why it wouldn't when cold. A jumper would prove / disprove the theory that its the switch.
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Posts in this topic
gereed75 Starting six when cold Dec 29 2019, 05:49 PM
roblav1 If the engine has Weber or Zenith carbs, there... Dec 29 2019, 08:54 PM gereed75 Thanks. Webers. I am completely familiar with ho... Dec 29 2019, 09:05 PM Krieger There is a good chance it's the ignition switc... Dec 29 2019, 11:36 PM gereed75 That’s a good idea. Might be able to jumper 12v... Dec 30 2019, 06:44 AM porschetub
Car seems to start normally when warm
When cold ... Dec 30 2019, 12:47 PM slivel This sounds normal for Webers in cold weather. Th... Dec 30 2019, 01:30 PM gereed75 Thanks Tub, based on the idea they can be disassem... Dec 30 2019, 02:04 PM GeorgeRud Could you hook up a 12 volt light or voltmeter to ... Dec 30 2019, 04:43 PM RickS I have 40 IDAs and have never had that experience.... Dec 31 2019, 01:29 AM
jfort Sounds about the same as my Weber’s before, now ... Jan 1 2020, 12:14 PM |
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