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Old 18 July 2008, 06:51   #1
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Thrusy washer?

I'm swapping back my to my standard oem 17 yamaha propellor, from mercury 15"- I did the actual swap last night, I seem to remember I could be wrong, does it require a thrust washer, before the prop goes on the spline or not please? its a 2stroke yamaha 60 longshaft, thanks guys, will I do any damage running without a thrust washer before the prop, as I'm geared up for a quick spin tonight to test out my steering,

it has a thrust washer after the prop, then a smaller washer, castle nut, then new split pin

looking online, the prop nut kit only consists of 4 parts,

thanks guys
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Old 18 July 2008, 08:09   #2
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That's all mine's got on it.
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Old 18 July 2008, 08:17   #3
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thanks Nos, ours are very similar arnt they
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Old 18 July 2008, 08:25   #4
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Originally Posted by ollyit View Post
thanks Nos, ours are very similar arnt they
I think it's a Yam thing
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Old 18 July 2008, 10:18   #5
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so hopefully wotn damage anything then? - there doesnt appear to be any play when pulling back and forth
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Old 18 July 2008, 10:29   #6
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No washers ahead of my prop either - I think mine's the same down there as the 60?

Push it forwards hard & turn it - listen out for horrible grinding noises!
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Old 20 July 2008, 16:59   #7
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On my 90 there are spacers/washers before and after the prop. The first (splined) spacer (thrust washer) goes behind the prop and has a rebate on the rear surface, then the prop, then splined (flat) spacer, then flat washer, then nut.

This setup is as shown in my workshop manual for all 2-stroke models 6-250hp
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Old 24 July 2008, 03:20   #8
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The thrust washer is the brass (usually) washer in front of the prop (with respect to the boat, that is; the nut will eventually be at the back); it is a machined part that butts against the taper on the prop shaft. Following that is the prop, then the spacer washer (the thick silver thingie); sometimes a flat washer, then the nut and pin.

I do not know for certain if your motor used used a thrust washer, but I do know that a prop nut kit does not contain a thrust washer, even if one is needed (for example my F115.)


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Old 24 July 2008, 03:51   #9
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Originally Posted by jyasaki View Post
The thrust washer is the brass (usually) washer in front of the prop (with respect to the boat, that is; the nut will eventually be at the back); it is a machined part that butts against the taper on the prop shaft. Following that is the prop, then the spacer washer (the thick silver thingie); sometimes a flat washer, then the nut and pin.

I do not know for certain if your motor used used a thrust washer, but I do know that a prop nut kit does not contain a thrust washer, even if one is needed (for example my F115.)

jky
Yes - that's exactly it. Thanks for better description.
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Old 24 July 2008, 03:51   #10
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