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torque spec. #13938014 03/27/21 01:25 AM
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Lazy Ike Offline OP
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Doing some maintanance on 2oo Merc.Pulled prop off, checking for line on shaft & changed lL.U. lube. what do i torque prop shaft nut down to. Thanksfor info cheers

Last edited by Lazy Ike; 03/27/21 01:26 AM. Reason: spelling
Re: torque spec. [Re: Lazy Ike] #13938372 03/27/21 01:14 PM
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boatman025 Offline
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75ftlbs


Hughes Marine
3855 Osage Lane
Wylie ,Texas
Re: torque spec. [Re: boatman025] #13938397 03/27/21 01:37 PM
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Lazy Ike Offline OP
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fish Thanks G

Re: torque spec. [Re: boatman025] #13938793 03/28/21 12:43 AM
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Stump jumper Offline
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Originally Posted by boatman025
75ftlbs

I thought it was dependent on prop type and hub. When I had a Tempest balanced and blueprinted by Steve he said to torque it to 90. 75 is about what Powertech recommended.


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: torque spec. [Re: Lazy Ike] #13939207 03/28/21 02:39 PM
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BCB Offline
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Way back in the rubber hub days, one of the most respected propeller techs we know of was a proponent for as much torque as you can apply many years ago.

Today we think tight enough that you feel good tension works well for all motors.
We estimate that around 95-100 ft. pounds.


BCB
Re: torque spec. [Re: Lazy Ike] #13940243 03/29/21 12:48 PM
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steve@hydrodynamics Offline
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rubber hub props are around 75 ft lbs
flo torque hubs without the forward bushing are 55 ft lbs
flo torque hubs WITH the forward bushing are 100 ft lbs


www.hydrodynamics-usa.com
info@hydrodynamics-usa.com
903-763-5225




Re: torque spec. [Re: steve@hydrodynamics] #13945676 04/03/21 01:01 AM
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Lazy Ike Offline OP
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fish thanks for all the info, ido believe my hub is rubber/ Tempest plus prop.

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