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trainfan1
 
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Default Mercruiser Still Won't Start

TSC wrote:
I do NOT see 12 volts on the positive side of the coil with the key on. This
is using a volt meter.


Digital or analog?

I tested the volt meter at the battery and got the
full 12 volts. Testing at the coil gives me nothing.


The coil (+) and... What did you use for a ground(-)?

Hooking up a wire with gator clips to the positive side of the battery to
the positive side of the coil produces no change.


Do you mean that you still do not have 12 volts at the coil to ground?
What are you using for a ground on this test? There always has to be a
reference to ground or we cannot help you figure this out.

Keeps turning over nice
and strong, but no firing whatsoever.


You will get no spark ever if you don't get this 12 volts at the coil to
ground cranking first, and have the points set to open to the specified
gap twice every engine revolution.

How did you set the points gap?


By the way, I *did* remove the tach wire while conducting all tests.


You removed it from what? It should be one of two connections at the
(-) post on the coil. It won't make a lick of difference, though, if
you still do not have 12 volts at the coil(+) to ground(not coil"-")
while cranking.


I changed back to my original coil and performed the tests again. No change.


It won't make any difference which coil you use to get the 12 volts coil
(+) to ground.

I am going to have to wait for daylight to continue this saga.


Let us know!


Rob
 
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