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Old 12 August 2004, 14:22   #1
Hightower's Avatar
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Prop thrust washers

Been experimenting with several pitches of prop on my Yammy, when I noticed that the thrust washer is contacting the main body and not just the inner sleeve on two of the propellers.

What I'd like to know is:
A. Should the washer just be in contact with the splined sleeve?
B. What effect do you think making contact with the body will have?

WANTED....SS 15 tooth splined Thrust washer for Yam 80hp 2 stroke, only spline need be in good condition as I'm wanting to modify one.

So search your boat yards and garages and you can make a little money from some scrap.


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Old 12 August 2004, 14:37   #2
Country: UK - England
Town: scotland
Boat name: Leviathan
Make: Phantom
Length: 8m +
Engine: GM Diesels
Join Date: Jan 2003
Posts: 1,437
It's supposed to contact the outer body, if it isn't contacting at rest, it probably is under full thrust anyway.this takes the thrust of the prop straight into the prop shaft via the thrust washer, hence it's name. The torque cushioning/shock absorbtion of the rubber hub is unaffected by this.

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Old 12 August 2004, 15:08   #3
Pete7's Avatar
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,868
Andy, i have a brass thrust washer which might fit, can't tell if its Yam or Merc but your welcome to it.

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