150 Ficht flywheel cover

Mac3

Petty Officer 2nd Class
Joined
Jun 18, 2008
Messages
105
I have a Johnson 150 Ficht 150FSXECR and recently had to replace the flywheel cover as it had split. When I took it for a test run it threw a code 17 low alternator voltage. The only electrical thing I touched was the crankshaft position sensor which I thought I had put back to previous position. I gave it a couple of turns clockwise and off we went, no further problem. The voltage on the instruments was reading 13.5. When I got home I read the manual (not while I was fitting it :) ) and it gave a measurement from the crankshaft of 0.05 inch well I noticed the old setting it was just visible through the slot in the flywheel cover, I assumed that was what it was for, more like 3/4 of an inch from the flywheel. Does this sound normal? The manual also said if certain parts, including the flywheel cover, were replaced or removed a set up procedure via the software must be executed. As the engine ran well enough and stopped and started ok a few times is this necessary?
thanks
David
 

boobie

Supreme Mariner
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Nov 5, 2009
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20,826
No way 3/4 of an inch. What does your manual say ?? The gap is measured on the very OUTER part of the flywheel. Set the gap to what the manual says and if it's running okay, leave it. What color is the sleeve on the sensor ??
 
Last edited:

Mac3

Petty Officer 2nd Class
Joined
Jun 18, 2008
Messages
105
Thanks Boobie, I struggle with the conversion from Aussie metric to US inches, make that one quarter of an inch and yeah I agree if it runs ok leave it. The sensor is a gold colour, is that important? Anyway I was concerned with the set up procedure for replacing a lump of plastic, doesn't make sense to me.
Cheers
David
 

boobie

Supreme Mariner
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Nov 5, 2009
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I'm talking about the color of the sleeve that the wires going to the sensor are in. Is the sleeve gray or black ??
 

boobie

Supreme Mariner
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Nov 5, 2009
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The sensors with the BLACK outer sleeves should be set at .020-.025 " . The gray sleeve ones are set at .045-.055 ".
 
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