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Check oil door - top cowel - Hartwell flush clips

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AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Mon Nov 12, 2007 2:53 pm Post subject: Check oil door - top cowel - Hartwell flush clips

I am violating my few/no-mod rule here. I want to install the neat flush fitting Hartwell clips on the oil door.



Questions:



Do I need one or two of these Hartwell H-5000-2 clips?  Is one enough to keep the oil door in place with the back-pressure of the air. I was thinking of adding an aluminum stiffener plate.



Also (to anyone on their final installation or in the air) is there at least 1" of clearance in this area to let the clips rotate



I really must admit that I like the completely flush fit of the cowel with no protrusions using the Hartwell clips

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jfrjr(at)adelphia.net
Guest

Posted: Mon Nov 12, 2007 3:52 pm Post subject: Check oil door - top cowel - Hartwell flush clips

Mike:  I used two of the Hartwell clips (Wick's at about $10/each) but 

also added two layers of eglass to the back side of the door to stiffen plus 

added a little epoxy around the clip flanges fro strength.  The only thing I 

don't like is that I had to recess the clips about 1/8" below the surface of 

the doors so that the clips would engage the cowling.  Clearance is not a 

problem (fuel injected and one side Lightspeed).  Jay Rowe #40301 (finishing 

the very baffling baffling).

  ---

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mike(at)learningplanet.co
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Posted: Mon Nov 12, 2007 4:57 pm Post subject: Check oil door - top cowel - Hartwell flush clips

I used two of them on my -9A and it seemed like a little overkill, but  

I think it's good insurance. As far as the recess is concerned, it  

depends on which Hartwell latch you buy. They come in different  

flavors. I learned this after ordering (and reordering) several sets  

from Spruce and Wicks. I found a set at AirVenture this year that have  

the top of the latch protruding about 1/16" and the catch (for lack of  

a better term) is extra deep.  These should work out perfectly.



Regards,

Mike Schipper

#576 - Fuse - www.rvten.com

On Nov 12, 2007, at 5:50 PM, Jay Rowe wrote:



[quote] Mike:  I used two of the Hartwell clips (Wick's at about $10/each)  

 but also added two layers of eglass to the back side of the door to  

 stiffen plus added a little epoxy around the clip flanges fro  

 strength.  The only thing I don't like is that I had to recess the  

 clips about 1/8" below the surface of the doors so that the clips  

 would engage the cowling.  Clearance is not a problem (fuel injected  

 and one side Lightspeed).  Jay Rowe #40301 (finishing the very  

 baffling baffling).

 ---

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pcasson(at)sasktel.net
Guest

Posted: Mon Nov 12, 2007 9:03 pm Post subject: Check oil door - top cowel - Hartwell flush clips

Do I need one or two of these Hartwell H-5000-2 clips?  Is one enough to keep the oil door in place

with the back-pressure of the air. I was thinking of adding an aluminum stiffener plate.



Also (to anyone on their final installation or in the air) is there at least 1" of clearance in this

area to let the clips rotate



[Perry Casson] 

I used 2 clips but I suspect one with a stiffener would be OK, No problem with clearance. 

http://casson.2y.net/yappa-ng/index.php?album=%2FRV-10%2F&image=IMG_1062.JPG



Perry Casson  C-FMHP 15 hours

Regina, Canada

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AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Wed Nov 14, 2007 11:31 pm Post subject: Re: Check oil door - top cowel - Hartwell flush clips

I mounted my (one) Hartwell clip on the oil door. Looking at it two could be better. I got a little upward bowing from riveting on the clip. It fits great except that the ends flare up a bit (not desirable for holding the air in the cowl). I must admit that I do like the totally flush look on the cowling rather than those two icky fasteners. Also the Hartwell clips are stone simple and tough as nails. They weigh about 40 grams each



I figured that I can put a z-strip over the clip and straighten out the bow in the door. This would add nominal weight.  and then do the epoxy glass bit

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Q/B - sold.

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