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1978 150HP Evinrude V6

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douglas302

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"I have a 78 Evinrude, 150HP V

"I have a 78 Evinrude, 150HP V6 that is hard to start. The starter dis-engages from the flywheel as soon as the engine starts to fire. After a dozen or more try's the engine will finally start. I have checked the pinion gear ass'y and everything seems to be OK. I am undecided about purchasing a new starter because I have been told it could be something else.

Any help would be appreciateed.

Douglas302"
 
"Doug..... Remove the spark pl

"Doug..... Remove the spark plugs and take a compression test. The reasoning for this is as follows.

On the V6 engines, a condition can exist where compression on a cylinder or a few cylinders could be lower than it should be. Then, the following cylinder could be of normal compression. The electric starter encountering this normal compression cylinder after lower compression cylinders fools the starter into thinking the engine has fired to start which of course causes the bendix to disengage.

Yes, I'm aware that the electric starter doesn't actually think.... it's just easier to explain this way.

When time permits, visit my store at: http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
"Thanks Joe, for your response

"Thanks Joe, for your response to my question. I checked the compression. The lowest compression was on cyl. one which was 112 psi and the highest was on six which was 118 psi all the others were 115 psi. I don't have a tank, so I can't check the timing. I guess I can take it to a dealer for that check. Any other suggestions would be appreciated....."
 
"Okay, there's not that mu

"Okay, there's not that much difference in the compresion psi to cause the scenario as I mentioned above.

It's possible that you may be enountering a voltage drop. Try removing and cleaning all cable connectors and the related surfaces that they connecct to, including the battery terminals, powerhead ground, etc.

I'm assuming that the battery is in good condition and fully charged. If not, correct that situation.

Also try (momentarily) connecting the battery cables directly to the starter to see if a faster cranking condition takes place. If a slow cranking engine exists, it may be due to a dirty starter, worn brushes, some thing of that nature.

It's unlikely that a timing problem would enter the picture unless you're attempting to start the engine at 3/4 throttle or so.

A final scenario I hate to mention is that a worn bendix can in time actually wear the flywheel teeth off at an angle. Examine both of these areas carefully.

When time permits, visit my eBay store at: http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
I have a 1979 Evinrude 150 tha

I have a 1979 Evinrude 150 that is doing the same thing. I am going to replace the battery and see if that helps.
 
"i would absolutely replace th

"i would absolutely replace the batt cables,and,..w/a larger size...they cause all kinds of probs and corrode,deteriorate from the inside out."
 
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