[TR] Rough running engine

Randall tr3driver at ca.rr.com
Wed May 15 16:20:06 MDT 2013


---- Bob Labuz <yellowtr at adelphia.net> wrote: 
> Cosmo,
> 
> Use an ohm meter to check the coil. I cant remember the exact # of ohms 
> but someone will post it I am sure.
> 
> On a stock 4A should be the same as a 3, 4 or up to 72 TR6.

Between the two side terminals = 3 ohms.  Center (spark) terminal to either side terminal can vary, anything within roughly 8Kohm to 15Kohm is probably OK.
Any terminal to case should show open circuit (infinite ohms).

Not an exhaustive test, but should catch at least 80% or so of coil failures.

Randall


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