[[[[[[[[ Flathead will not start ]]]]]]]]
Laughing Gas
Joined: Jun 2011
Posts: 1,041
Likes: 54
From: Sterling CO
you said everything electrical... though I don't have a hunch yet I'll ask some more questions:
spark plugs - did ya replace those?
6v original, 12v conversion, positive ground, negative ground?
original style i take it from the word generator in there but I'll ask to be sure.
recheck connections... sounds like coil wire came loose, dizzy ground came loose, etc.
spark plugs - did ya replace those?
6v original, 12v conversion, positive ground, negative ground?
original style i take it from the word generator in there but I'll ask to be sure.
recheck connections... sounds like coil wire came loose, dizzy ground came loose, etc.
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Fleet Owner
Joined: Jul 2004
Posts: 27,298
Likes: 1,059
From: NM
A flathead is no different than any other engine, all you can do is work your way thru the systems and see where you aren't getting spark, fuel, or compression.
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Senior User
Joined: Aug 2013
Posts: 108
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From: Franklinton, NC
Was going through this just 2 weeks ago with a rebuilt flat head that hadn't run in a few years. Spark at the points but not at the plugs. Checked all the wires, everything was tight. PO thought coil, so he replaced it. Still no spark. Turns out the points had slipped adjustment. As soon as he re-gapped, the old girl coughed and proceeded to run. For a few seconds. Just long enough to burn up the fuel dumped into the carb. So it has progressed to a fuel delivery problem.
As Ross and others say, just walk through each system and make sure each one is doing what it should. Even with weak compression or bad timing, it should still pop and sputter. You're missing at least one of the three.
As Ross and others say, just walk through each system and make sure each one is doing what it should. Even with weak compression or bad timing, it should still pop and sputter. You're missing at least one of the three.
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Freshman User
Joined: Apr 2008
Posts: 42
Likes: 0
ok guys ,sorry I couldnt get back eariler ,but I was out of town,well I put a little gas in my carb and it started right up ,I dont understand it ,I did the same thing earlier ,and all it did was turn over and wouldnt start,anyway ,maybe it is fixed ,I hope it dont start acting like a women and do something different everytime ! thanks again Bill
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