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Paragon Transmission 1:1 and 2:1 - ho...

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » Paragon Transmission 1:1 and 2:1 - how to tell difference? « Previous Next »

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Larry J. Wood
New member
Username: ptpiper

Post Number: 2
Registered: 07-2013
Posted on Tuesday, March 03, 2015 - 10:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I own a rebuilt Seascout 4-91 - in process of installing in boat.
I have two paragon transmissions - one on boat, one surplus. I have been told one is 1:1, the other 2:1 reduction - can not figure out how to tell the difference now - rather than waiting 3 months to get everything running. Any bright ideas?seascout 4-91 paragon transmission
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Ernie
Senior Member
Username: ernie

Post Number: 2011
Registered: 01-2002


Posted on Wednesday, March 04, 2015 - 07:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The reduction gear with any ratio was a round housing bolted on the aft end. The larger reverse gears had a similar reduction gear housing. The engine in your pic doesn't have a reduction gear on it.



Note the phantom part of the drawing

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Charles Holmes
Senior Member
Username: jimmys

Post Number: 52
Registered: 01-2011
Posted on Wednesday, March 04, 2015 - 01:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

You can Rotate your engine one revolution and count the times that the output shaft rotates, buy marking the Output Shaft, with a Felt pen.
That will tell you it's a 1 to 1 , or 2 to 1 Ratio.
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Ernie
Senior Member
Username: ernie

Post Number: 2013
Registered: 01-2002


Posted on Thursday, March 05, 2015 - 11:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Make sure it is in forward. Reverse in a planetary gear is never 1 to 1.

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