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28p Chopper Arrived
https://hpbc.ca/viewtopic.php?f=18&t=2937
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Author:  argento102 [ June 29th, 2015, 1:57 pm ]
Post subject:  28p Chopper Arrived

#13372 A5 28p arrived today. Solid shape, no dings, but some
cavitation burns. Off to the prop shop Friday. Should have the Charger
closer to being dialed in for West Lake. Fingers crossed, as there's a lot
of wknds in between. :D

Image

Author:  argento102 [ July 1st, 2015, 8:10 pm ]
Post subject:  Re: 28p Chopper Arrived

Prop spacing look ok?

Image

Author:  argento102 [ July 1st, 2015, 8:17 pm ]
Post subject:  Re: 28p Chopper Arrived

Image

Author:  argento102 [ July 2nd, 2015, 6:31 pm ]
Post subject:  Re: 28p Chopper Arrived

Hmm, I need bushing made for the front prop shaft to eliminate wiggle.
Took a few clicks but hey, Father in law is a machinist. :D :D Thanks Scr&Fl.

Author:  dubber [ July 2nd, 2015, 10:35 pm ]
Post subject:  Re: 28p Chopper Arrived

Well it looks like you found your answer but the best I can say is that on a Yamaha it doesn't look like that when running Merc props. Basically one swaps out the thrust washer and you are good to go. Post a link for other OMC guys to know in the future.

Author:  argento102 [ July 3rd, 2015, 9:41 am ]
Post subject:  Re: 28p Chopper Arrived

dubber wrote:
Well it looks like you found your answer but the best I can say is that on a Yamaha it doesn't look like that when running Merc props. Basically one swaps out the thrust washer and you are good to go. Post a link for other OMC guys to know in the future.


We re turning down the O.D. of the OMC thrust washer to match the I.D. of the prop
hub so the washer front face sits snugly in it. Everything will be balanced. I'll post
pics and measurements when we re done later this aft.

Thanks Dubber.

Arg :D

Author:  argento102 [ July 5th, 2015, 9:48 am ]
Post subject:  Re: 28p Chopper Arrived

Turned the face O.D. of the OMC thrust washer to fit the I.D. of the chopper prop.
All faces were turned exact flat within 1 thou. Made up spline shaft spacing with a
turned brass spacer. Done. :D

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Author:  Matt [ July 5th, 2015, 7:55 pm ]
Post subject:  Re: 28p Chopper Arrived

So the big question, how does it run?

Author:  argento102 [ July 6th, 2015, 8:04 am ]
Post subject:  Re: 28p Chopper Arrived

Matt wrote:
So the big question, how does it run?



We never had a chance this weekend Matt. House showings and
"pseudo" long wknd. Just not enough hours. We'll run it this wknd
and report back. :D :D

It's good having a father in law that's a full spec machine shop.

Image

Image

Author:  wildcatt [ July 8th, 2015, 1:41 pm ]
Post subject:  Re: 28p Chopper Arrived

What you made there, looks just like the one I run for my Chopper on my OMC.
It should work fine.
Let us know how it works

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