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  #201  
Old 08-28-2022, 10:03 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,711
Default Doubler

Quote:
Originally Posted by idubrov View Post
Got it.

But I see another "gotcha" here: the firewall doubler from OP-32 reuses two of the holes on the firewall. Since it goes to the front of the firewall, the firewall (ideally) should not be dimpled in these two holes (and stiffener behind the firewall should not be counter-sinked). Right?
Sounds right. I do remember making a a larger doubler to allow the contactor to sit even to each other. Can't remember why. It made sense at the time. Found a photo.
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Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #202  
Old 09-28-2022, 08:56 PM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Southwest, USA
Posts: 2,525
Default Thanks Larry

Quote:
Originally Posted by wirejock View Post
U-00713C, DWG-C1, Nose Wheel Fairing Bracket
They are loose if you follow Vans plans. The vibration couldn't be a good thing. Here's the fix.
The nose pant brackets are fixed.
If you haven't bored the forward holes to Vans dimension, just carefully bore them so the flat washer is a tight fit then add a stainless washer outside so the lock washer and hex bolt hold everything tight.
If you did bore the holes...
Buy washers. Two grade 8-5/16" washers and two 3/8" stainless washers. The grade 8 were ground down to fit tight in the forward holes then bored to 3/8 ID. That helped a lot. The stainless were placed over the holes and under the lock washers so the bolts would lock it down. Now the brackets are solid.
Attachment 27890

Larry, thanks for this. I am doing this now. What I plan to do is just drill the front hole for the bolt, like you suggest. So to pull the wheel pant, I will remove the allen bolt on each side. In addition, those allen bolts are 3/4 long and stick thru the fork towards the sidewall of the tire. I was going to add washers so the bolt is even inside. This will also give me about 1/2 for the tow bar to have a good perch. Here is a picture of what I was thinking. I will probably make a bushing to replace those washers and make the outside dia same as the allen. bolt head. Any comments?

Thanks
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John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2022, worth every penny

RV9A- Status:
98% done, 2% left to go
To Go: wing mounting, engine baffles, wing tips, move to airport
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Last edited by PilotjohnS : 09-28-2022 at 09:01 PM.
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  #203  
Old 09-28-2022, 09:10 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,711
Default Nose pant brackets

Quote:
Originally Posted by PilotjohnS View Post
Larry, thanks for this. I am doing this now. What I plan to do is just drill the front hole for the bolt, like you suggest. So to pull the wheel pant, I will remove the allen bolt on each side. In addition, those allen bolts are 3/4” long and stick thru the fork towards the sidewall of the tire. I was going to add washers so the bolt is even inside. This will also give me about 1/2” for the tow bar to have a good perch. Here is a picture of what I was thinking. I will probably make a bushing to replace those washers and make the outside dia same as the allen. bolt head. Any comments?

Thanks
Exactly what I did. I replaced the two brackets and did as you mentioned. Brackets are tight. Nose pant it tight.
Edit...
I read the plans wrong. The 11/16" hole is drilled in the pant for the tow bar. Duh! The bracket is bolted with the socket head screws. Watch the excess screw protruding in toward the tire. I added a washer or two to move the bolts outboard a little.
__________________
Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.

Last edited by wirejock : 09-30-2022 at 10:37 AM.
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