1980 OMC 400 "Stringer" help please
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1980 OMC 400 "Stringer" help please

  1. #1
    Or Seth, either one Budweiser's Avatar
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    Question 1980 OMC 400 "Stringer" help please

    1980 Masterfab houseboat
    4cyl OMC 400 "Stringer" Outdrive

    When I bought the boat a year ago the guy told me that it would pop out of forward gear occasionally, at around 3000 rpm.
    I had an issue with the starter, it sounded like the flywheel was missing teeth, zzziiing. Pulled the engine off the drive and inspected the flywheel... no issue there. Turns out one of the starter bolts had broken, keeping the gears from fully engaging. After fixing the issue with the starter and bolting the engine back up... reverse gear wont engage. Forward works fine.

    I've tried disconnecting the shift cable from the shift plate mounted on the engine and moved in into gear by hand. Still nothing, except a very faint sound of the shift dogs barely touching.

    Did I mess something up when I backed the engine off the drive? Lower shift cable?

    It worked just fine before. Where should I start in identifying the issue?

    Thanks guys!
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  3. #2
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    Quote Originally Posted by Budweiser View Post
    1980 Masterfab houseboat
    4cyl OMC 400 "Stringer" Outdrive

    When I bought the boat a year ago the guy told me that it would pop out of forward gear occasionally, at around 3000 rpm.
    I had an issue with the starter, it sounded like the flywheel was missing teeth, zzziiing. Pulled the engine off the drive and inspected the flywheel... no issue there. Turns out one of the starter bolts had broken, keeping the gears from fully engaging. After fixing the issue with the starter and bolting the engine back up... reverse gear wont engage. Forward works fine.

    I've tried disconnecting the shift cable from the shift plate mounted on the engine and moved in into gear by hand. Still nothing, except a very faint sound of the shift dogs barely touching.

    Did I mess something up when I backed the engine off the drive? Lower shift cable?

    It worked just fine before. Where should I start in identifying the issue?

    Thanks guys!
    there is a mesurment you take when the drive is in full forward then in full reverse you subtract the numbers and the figure you get has to fall in a certain number youll need a manual and start looking for parts they may be hard to find red rhino I think has reman parts for this
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  4. #3
    Or Seth, either one Budweiser's Avatar
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    Quote Originally Posted by [email protected] View Post
    there is a mesurment you take when the drive is in full forward then in full reverse you subtract the numbers and the figure you get has to fall in a certain number youll need a manual and start looking for parts they may be hard to find red rhino I think has reman parts for this
    I guess I should get the repair manual, I have one for all my other vehicles. Was just hoping someone could get me started in the right direction if it were an obvious goof/fix.

    Thank you Bart

    -Seth-
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