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Old 01-19-2010, 09:02 PM
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41 Caddy Flathead Won't Start....Help!

Hey guys....I have a customer coming tomorrow to pick up his 41 Cadillac and all of a sudden it won't fire up. The car ran about 4 weeks ago when I pulled it in and out of the paint booth. Since then it has basically sat. Only thing I've done that may have caused this was wash the car down including the engine bay.

The engine seems to be getting fuel...the sightglass is full and I can stick my finger into the carb and feel it. I'm assuming it's getting air as I've tried to start it with the air cleaner assembly removed. That leaves me with spark as the problem.
I pulled the cap and it was dry inside. Pulled the coil wire and it seemed to be dry. Checked two of the wires on the cap and they were dry too. Any ideas what else I can check tomorrow before he comes to get it?

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Old 01-19-2010, 09:25 PM
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Check point condition and gap. If their worn replace both point set and condenser. Or, try reseting the gap to 30 thousands and see if it will start.
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Old 01-19-2010, 09:49 PM
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put an old spark plug in one of the wires and ground the threaded part of the plug by holding it against the car by the rubber spark plug boot and have someone else crank it over and make sure its not getting spark
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Old 01-19-2010, 10:03 PM
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Quote:
Originally Posted by n_keiser_rat
put an old spark plug in one of the wires and ground the threaded part of the plug by holding it against the car by the rubber spark plug boot and have someone else crank it over and make sure its not getting spark
I believe he means make sure it IS getting spark. If not go straight for the points in the dist.
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Old 01-19-2010, 10:21 PM
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yea what he said....
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Old 01-20-2010, 06:13 AM
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I have one of those spark checkers that you plug into the wire so I'll throw that on there. Just a bit worried because like I said it was running fine and all of a sudden now it quit.
Farily certain it's spark related though because it won't even really cough on starting fluid.
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Old 01-20-2010, 07:04 AM
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Not sure about a Caddy but my 34 Ford would not start on the 6V battery after it had sat a few days. What I would do was leave the ignition on (make sure it is neutral) and then jump the starter with a 12V battery. It would spin a lot faster and fire right up. Since the starter was activated by a floor mounted switch the 12V would not back feed through the circuits.
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Old 01-20-2010, 07:20 AM
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Well it has a fresh 6V in it but yeah that sucker cranks slow. But like I said it would fire right up a few weeks ago when I brought it in and out of the booth. Seems like when we got the real cold weather here is when I started having this issue. But the car has been in my "warm" garage as of late....like 50-60* in there with the heat on all day.
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Old 01-20-2010, 11:14 AM
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Quote:
Originally Posted by HardcoreZ28
Well it has a fresh 6V in it but yeah that sucker cranks slow. But like I said it would fire right up a few weeks ago when I brought it in and out of the booth. Seems like when we got the real cold weather here is when I started having this issue. But the car has been in my "warm" garage as of late....like 50-60* in there with the heat on all day.
Guess I should have stated that I had a Battery Tender on the 6V battery any time it was parked. It still cranked slow and if it sat a few days it would not fire. The 12V did the trick. Don't know why but it worked. And according to my local guy that rebuilds starters - the 12V to starter does no harm to it. Also polarity did not matter. It spun the correct way whether I grounded the positve or negative. That always blew my mind but it worked.
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