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 GTR 37 shaft issue 
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MMT Member

Joined: Mon Aug 11, 2014 11:09 am
Posts: 5
Post GTR 37 shaft issue
My GTR 37 has the aluminum casting lower unit. I noticed today that the prop and shaft was sticking out the foot 1/2" further than what it should be. I took the lower unit off and the pulley is locked in place and the nylock nut is tight on the end. I assuming the belt pulley slipped. Would anyone know the measurement of where the pulley should be set or is it bottom out against the flange?


Sat Dec 30, 2017 7:10 pm
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MMT 1000 Club

Joined: Sun Oct 24, 2010 7:19 pm
Posts: 1103
Post Re: GTR 37 shaft issue
Your front bearing is toast. Check it first.


Mon Jan 01, 2018 7:43 pm
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MMT Elite Member
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Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
Post Re: GTR 37 shaft issue
The front pulley locates the shaft. Shaft slides all the way up to the bearing step machines in shaft, and the pulley clamps on the shaft to lock it all down.

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Tue Jan 02, 2018 7:18 am
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MMT Member

Joined: Mon Aug 11, 2014 11:09 am
Posts: 5
Post Re: GTR 37 shaft issue
I found the issue. THe snap ring that hold the bearing in place was missing. This was allowing the bearing to slide and half inch and make contact with the rubber seal.


Thu Jan 04, 2018 8:42 am
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