OMC Stringer Problem

southkogs

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I've been lurking on these forums for a few days, and can't say thanks enough for all of the valuable insight many of you provide. It's been very helpful!

I just took a plunge into a project boat because I was willing to risk the purchase price. It's a 1972 Silverline Comoro in fantastic condition. The hitch is the stern drive - or as I've seen it described on the boards, the "White Boat Anchor." The boat itself is in fantastic (even amazing) condition, and the inline 6 is silky smooth (runs with no problem, and is not leaking a drip of oil). But the stern drive is jamming when you shift into gear. It doesn't grind at all, but you do hear a little bit of a slam. There's just a quick shudder of the outdrive, and the engine shuts off.

It's a 165HP, but I can't locate the model number. I think there were two possibles on that year boat, but don't know how much that matters until I get into parts. I know it's electric shift, and that it was working a few weeks ago.

Any suggestions as to what to look at first?

I'm new to stern drives, and don't completely understand how the out drive works. But I have ripped into an outboard or two, so I've got the general idea. I've also ordered a shop manual, and won't start anything until I get it here at the house.

Any ideas would be a huge help.
 

southkogs

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Re: OMC Stringer Problem

Will do.

Are the lower units on these stern drives pretty similar to the lower units on an outboard? I've gotten into a couple of Evinrudes lowers trying to solve some issues in the past.
 

Bt Doctur

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Aug 29, 2004
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Re: OMC Stringer Problem

check the electric shift wiring. it may be trying to energize fwd and rev at the same time.
 

Howard Sterndrive

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Re: OMC Stringer Problem

they are similar to the Evin/johnson electric shift outboard lowers (unfortunately)
 

zbnutcase

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Re: OMC Stringer Problem

Could be shift switch, a well known problem, and a long obsolete part!
 

southkogs

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Re: OMC Stringer Problem

Great ideas. Thank you all.

Fortunately (or not so depending on perspective) my last couple of outboards were electric shift, so I'm kinda' familiar with the idea.

I'll check lube out this weekend. I'm going to look through all of the maintenance stuff to see how well it was actually kept up.
 
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