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    Johnson 15 - scored piston and delaminating crankcase

    Hi, Building on a recent thread I started (http://forums.iboats.com/showthread.php?t=525675&p=3569412#post3569412) when I found some scoring in the lower cylinder of my '85 Johnson 15. After taking it apart the lower pistons is scraped up pretty good and needs to be replaced, but before I do...
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    Johnson 15: Use '87 piston in '85 powerblock?

    Greetings, Looks like I need to replace a piston in my '85 johnson 15hp and was wondering if anyone can tell me if there is any flexibility to use pistons from close but different years. Looking at part numbers, only '84 and '85 match, which could be difficult in tracking down a good used one...
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    '85 Johnson 15 low compression in 1 cyl - looks scored

    Re: '85 Johnson 15 low compression in 1 cyl - looks scored Thanks for the feedback everyone. I've been trying to squeeze in time to take a closer look, and finally was able to pull things apart to look at the cylinders and crankshaft. There were a few things that seemed like they could be the...
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    Outboard spraying water into boat

    Hi, I've been lurking here for a while and figured I'd post up a couple issues I'm dealing with on my small 12' skiff. Hopefully someone has the solution I'm looking for. As I understand it, the plate at the base of the midsection should be even with the bottom of the stern. If t is lower it...
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    '85 Johnson 15 low compression in 1 cyl - looks scored

    Hi, I'm relatively new to the site but have done a lot of reading. I've seen plenty of discussion regarding compression but still have a couple unanswered questions. Hopefully someone has a little time to help me on my way. Short story: low compression on one cyl; I think because it's...
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