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Spacer between 7F8-4 and 7F8-6? (was CH701 front lower beari

 
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Curt.Thompson(at)verizon.
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PostPosted: Tue Mar 24, 2009 6:24 am    Post subject: Spacer between 7F8-4 and 7F8-6? (was CH701 front lower beari Reply with quote
Craig,

It looks like George put a spacer between the Rear Lower Bearing (7F8-4) and the Nose Gear Stops (7F8-6). I’m guessing that this was so the Nose Gear Strut Assembly (7L1-1J) doesn’t hit the stops before 7L1-1J rides in 7F8-6. I made my own 7L1-1J and have the same issue. I figured I made 7L1-1J about 1mm too long (not much). I think John Marzulli has the same issue with his kit. I’m trying to decide if (a) I leave it alone, or (b) I re-make 7F8-8 a little higher, or (c) I put a spacer under 7L1-5J, or (d) I do what George did.

Have other builders run into this?

Curt


From: owner-zenith701801-list-server(at)matronics.com [mailto:owner-zenith701801-list-server(at)matronics.com] On Behalf Of Craig Payne
Sent: Monday, March 23, 2009 10:29 PM
To: zenith701801-list(at)matronics.com
Subject: RE: Zenith701801-List: CH701 front lower bearing plate (7F8-4) location?


Not sure which is correct but it can be built either of two ways. The first shot (white paint) is of my unflown 701. I didn’t build the section shown. The second shot is of George Race’s 701 N73EX (from his excellent DVD of photos). You either have a gap between the floor and the plate or between the plate and the channel. Unfortunately no one has a shot from the side to show what happens between the channel and the plate. The shots in the Zenith photo assembly guide from inside the fuselage don’t appear to shot the plate. So I guess it goes outside. I think I prefer it that way – like George’s and David’s. But it is worth asking Zenith about. Let us know what you find out.

-- Craig

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georgerace



Joined: 25 Oct 2006
Posts: 788
Location: Albion, MI
PostPosted: Tue Mar 24, 2009 10:14 am    Post subject: Spacer between 7F8-4 and 7F8-6? (was CH701 front lower beari Reply with quote
You are correct Curt. I found that using the kit supplied parts, I was concerned that the top strut cover, 7L1-5J, would be coming down on the top support possibly bending or breaking the bolts that hold it in place. My solution was to add a couple of .125 spacers to raise the top plate about an 1/8 of an inch above the top plate.

And yes, later I did put longer bolts through the bottom bracket with proper thread extensions showing. I think somewhere on my DVD there are additional pictures that show the longer bolts.

George - N73EX
Builder/Test Pilot

From: owner-zenith701801-list-server(at)matronics.com [mailto:owner-zenith701801-list-server(at)matronics.com] On Behalf Of Curt Thompson
Sent: Tuesday, March 24, 2009 10:22 AM
To: zenith701801-list(at)matronics.com
Subject: Spacer between 7F8-4 and 7F8-6? (was CH701 front lower bearing plate (7F8-4) location?)


Craig,

It looks like George put a spacer between the Rear Lower Bearing (7F8-4) and the Nose Gear Stops (7F8-6). I’m guessing that this was so the Nose Gear Strut Assembly (7L1-1J) doesn’t hit the stops before 7L1-1J rides in 7F8-6. I made my own 7L1-1J and have the same issue. I figured I made 7L1-1J about 1mm too long (not much). I think John Marzulli has the same issue with his kit. I’m trying to decide if (a) I leave it alone, or (b) I re-make 7F8-8 a little higher, or (c) I put a spacer under 7L1-5J, or (d) I do what George did.

Have other builders run into this?

Curt




[quote][b]

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agibeaut



Joined: 21 Mar 2007
Posts: 64
PostPosted: Tue Mar 24, 2009 11:16 am    Post subject: Spacer between 7F8-4 and 7F8-6? (was CH701 front lower beari Reply with quote
I had the same problem with the "gap" in spite of the fact that I made the 7F8-6R&L 3 times. I made a 4th set which are custom fit and higher when I assembled the strut. I did not like the gap which was about 3mm when the strut was sitting in place.

--- On Tue, 3/24/09, George Race <mykitairplane(at)mrrace.com> wrote:

Quote:
From: George Race <mykitairplane(at)mrrace.com>
Subject: RE: Spacer between 7F8-4 and 7F8-6? (was CH701 front lower bearing plate (7F8-4) location?)
To: zenith701801-list(at)matronics.com
Date: Tuesday, March 24, 2009, 1:13 PM

CH701 front lower bearing plate (7F8-4)
location?



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You are correct Curt.  I
found that using the kit
supplied parts, I was concerned that the top strut cover,
7L1-5J, would be
coming down on the top support possibly bending or breaking
the bolts that hold
it in place.  My solution was to add a couple of .125
spacers to raise the
top plate about an 1/8 of an inch above the top
plate.
 
And yes, later I did put longer
bolts through the
bottom bracket with proper thread extensions showing. 
I think somewhere on
my DVD there are additional pictures that show the longer
bolts.
 
George -
N73EX
Builder/Test
Pilot



From:
owner-zenith701801-list-server(at)matronics.com
[mailto:owner-zenith701801-list-server(at)matronics.com] On
Behalf Of Curt
Thompson
Sent: Tuesday, March 24, 2009 10:22 AM
To:
zenith701801-list(at)matronics.com
Subject: Spacer
between 7F8-4 and 7F8-6? (was CH701 front lower bearing
plate (7F8-4)
location?)




Craig,


 
It
looks like George
put a spacer between the Rear Lower Bearing (7F8-4) and the
Nose Gear Stops
(7F8-6).  I’m guessing that this was so the Nose
Gear Strut Assembly
(7L1-1J) doesn’t hit the stops before 7L1-1J rides in
7F8-6.  I made my own
7L1-1J and have the same issue.  I figured I made
7L1-1J about 1mm too long
(not much).  I think John Marzulli has the same issue
with his kit. 
I’m trying to decide if (a) I leave it alone, or (b)
I re-make 7F8-8 a little
higher, or (c) I put a spacer under 7L1-5J, or (d) I do
what George
did.

 
Have
other builders run
into this?

 
Curt


 




 








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