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Badpuppy · 06-13-2018, 02:52 PM

Yeah, compression gauge needs schrader valve to be accurate, but most important is consistent readings across all cyls. Oil test if there is a difference to determine rings or valves at fault.

Back to coil - I assume you replaced both coil and dist. wire when you converted to 12V, so not likely to be the problem... Disconnect the battery and check the resistance across the ignition switch, should be nearly zero ohms. Could be the contacts are corroded, which would cause a weak spark.

What a beautiful car! When you get it ticking, polish up that rust and go! Around here you'd need a front bumper and horn to be legal, though. Brake light would be a plus.

06-13-2018, 02:52 PM	#43
Badpuppy Senior Member Join Date: Dec 2017 Location: Guthrie, OK Posts: 1,145	Re: Motor won't run Yeah, compression gauge needs schrader valve to be accurate, but most important is consistent readings across all cyls. Oil test if there is a difference to determine rings or valves at fault. Back to coil - I assume you replaced both coil and dist. wire when you converted to 12V, so not likely to be the problem... Disconnect the battery and check the resistance across the ignition switch, should be nearly zero ohms. Could be the contacts are corroded, which would cause a weak spark. What a beautiful car! When you get it ticking, polish up that rust and go! Around here you'd need a front bumper and horn to be legal, though. Brake light would be a plus.