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  #1  
Old 12-05-2019, 05:17 PM
Stockmanreef Stockmanreef is offline
 
Join Date: Nov 2012
Location: Midland, mi
Posts: 962
Default Spinner Mounting Question

I read the plans and maybe (as usual) I missed something and there is no point where you need to line the spinner up to ensure there is no wobble. Feedback from the mothership also indicated that you don't have to do anything special to get the spinner lined up. I guess you just make sure that the spinner is pushed in tight and the combination of the front and back spinner plate will make the spinner fit perfectly without wobble.

So does the spinner just line up perfectly without wobble?

In the older planes (6, 6, and 8), there is a method to get the spinner lined up using a pencil and rotating the prop.

Are most people putting on the spinner and lining it up by rotating the prop, then putting on the cowling? Or using the method in the plans.

Thanks
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  #2  
Old 12-05-2019, 07:35 PM
Don E Don E is offline
 
Join Date: Aug 2016
Location: West Chester, PA
Posts: 119
Default This being my first offense...

...and not knowing any better, I followed the plan instructions. Worked out perfectly.
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  #3  
Old 12-05-2019, 08:19 PM
Stockmanreef Stockmanreef is offline
 
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Location: Midland, mi
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Default

With that in mind, I think that I could tape or temporarily screw the spinner in place and do the cowling without rotating the prop. That would be nice, since it would leave the engine pickled. Of course, I would have to mount the prop at the angle the flange is now and not horizontal. That could be interesting.

thanks
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Midland, MI
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FaceBook Page: Ken's RV-14
RV-14a (serial number 140073)
N73XP

Plane at hangar and the wings ON.
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  #4  
Old 12-05-2019, 09:21 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,351
Default

Ken,
You really don't need the spinner fitted to do the cowl but you will need the back plate attached to the prop.
As for fitting the spinner, I went out of my way by using a dial indicator to make sure it comes out perfect and it did but I really had very little movement for changes so I think if I had just done without the dial indicator, it still would have come out great.

Hope this helps.
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  #5  
Old 12-17-2019, 07:33 PM
Stockmanreef Stockmanreef is offline
 
Join Date: Nov 2012
Location: Midland, mi
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I put the spinner in place temporarily and I still have a question.

I see that the last thing you do is sand the back edge of the spinner flush with the back edge of the spinner back plate. But should the back edge of the spinner line up with the starter ring gear like the spinner plate does prior to drilling? In other words, is the spinner cut well enough that if you put is flat surface that the tip of the nose is dead center.

My spinner is gray, so it is difficult to tell if the spinner is pushed up against the front spinner plate well.
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Midland, MI
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FaceBook Page: Ken's RV-14
RV-14a (serial number 140073)
N73XP

Plane at hangar and the wings ON.
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  #6  
Old 12-17-2019, 08:37 PM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 612
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I pulled the plugs out of the engine and spun the propeller with a marker on a stand, so that I could get the tip of the spinner to spin in a nice non-wobbling dot that made the smallest center possible. I don't t know that I'd trust the fiberglass mold to be perfect if you just align it on the back side.
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  #7  
Old 12-17-2019, 08:58 PM
mturnerb mturnerb is offline
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
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Quote:
Originally Posted by TimO View Post
I pulled the plugs out of the engine and spun the propeller with a marker on a stand, so that I could get the tip of the spinner to spin in a nice non-wobbling dot that made the smallest center possible. I don't t know that I'd trust the fiberglass mold to be perfect if you just align it on the back side.
I did something similar, then put a laser on the dot while I drilled the spinner.
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  #8  
Old 12-18-2019, 06:39 AM
rvator10 rvator10 is offline
 
Join Date: Apr 2006
Location: Fountain Hills, arizona
Posts: 117
Default

on a side note:
Vans pre-mark?s the propeller blade cuts on the spinner, these marks are too generous and leaves a large gap with the propeller, did anyone else get caught up with this like I did , maybe time for a new spinner and starting over.
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  #9  
Old 12-18-2019, 10:02 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
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Quote:
Originally Posted by rvator10 View Post
on a side note:
Vans pre-mark?s the propeller blade cuts on the spinner, these marks are too generous and leaves a large gap with the propeller, did anyone else get caught up with this like I did , maybe time for a new spinner and starting over.
I didn't think I could trust them. Got a template direct from Hartzell and used that as a guide. It was very close, but I still cut small and worked my way out to correct size.

Larry
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  #10  
Old 12-18-2019, 12:00 PM
mturnerb mturnerb is offline
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
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Default

Quote:
Originally Posted by rvator10 View Post
on a side note:
Vans pre-mark?s the propeller blade cuts on the spinner, these marks are too generous and leaves a large gap with the propeller, did anyone else get caught up with this like I did , maybe time for a new spinner and starting over.
I used their marks and ended up adjusting some to give good clearance through full prop movement. By the time I put the gap filler back in (the small fiberglass pieces permanently mounted to spinner backplate), the gap isn't an issue for me.
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