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TOPIC: 25hp johnson repower?

25hp johnson repower? 10 years 1 month ago #110964

ive got a 62 40hp Johnson (motor in good shape) electric shift bad. will that power head replace a 55 25hp Johnson motor? thanks .Bob

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Re: 25hp johnson repower? 10 years 1 month ago #110973

  • ed-mc
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The 40hp should be a "super quiet" type, and that powerhead bolt pattern isn't the same as the older 25hp. There are some newer 40's that would have the same pattern as the 25 and older non-super 35's.

One thing I'll do when researching this type of compatibilty is to compare powerhead base gaskets. If the gaskets are the same, you've got a pretty good chance of transplanting the powerhead.

This is a good place to look up parts, excellent drawings and the thing I like is, they usually have pictures of real parts. Really helps when trying to identify things.

www.marineengine.com/parts/parts.php

HTH........ed

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Re: 25hp johnson repower? 10 years 1 month ago #110981

Is the lower unit robust enough for that switch? I know the 35's are fine, not sure about the 25s....

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Re: 25hp johnson repower? 10 years 1 month ago #110983

the 28 or 33 or 40hp commercial should fit that 25 base, if it is the 1 water tube job, but I also think it would be too much for the 25 lower...looks like he needs a 40 super quiet or lark lower for the 1962 40...john

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Re: 25hp johnson repower? 10 years 1 month ago #111347

thanks guys for the info. I just have a old 40hp super quiet ling a round and I like the looks of the 55 25hp. thanks bob

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