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Installing new steel gear legs on Mk-3 Classic ?

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rowedenny

Joined: 09 Mar 2008
Posts: 338
Location: Western PA

Posted: Tue Aug 19, 2008 2:47 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

I recently bought an unused pair of steel (high  rise) gear legs from a fellow lister to replace my original aluminum  legs.

 Just spent the afternoon trying to set my alignment  and get them both the same.

 I have the plane hanging from the hanger roof and a  center line string pulled from the tail wheel to the nose hoop.

 Can't seem to figure out how to hold the legs in  position while measuring alignment. 

 Any and all suggestions are  appreciated.

  

 Denny Rowe

  

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lcottrell

Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

Posted: Tue Aug 19, 2008 3:04 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

Hi, 

    Just finished doing the same thing with my Firestar. Take the  wheels off the axels and put them in the fittings on the inside of the legs. (  to the middle) and then take a flat piece of steel and clamp the axles to the  steel. This will give you a straight line across with no toe in. As it was  explained to me the steel legs don't need to have windage built in as is needed  in the alum legs. It is a bit more sensitive without the toe in, but not a  problem after you get used to it and the plane accelerates a lot faster without  the drag of the toe in.

    As with all advice, it is worth what you paid for it, but I  like mine that way. This was suggested to me by Terry Davis, and I  appreciate it, and like it.

 Larry C

 Oregon Firestar 2, 427 hours

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DAquaNut(at)aol.com
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Posted: Tue Aug 19, 2008 3:44 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

In a message dated 8/19/2008 5:47:32 P.M. Central Daylight Time,  rowedenny(at)windstream.net writes:

  	  Quote: 	
		     Can't seem to figure out how to hold the legs in    position while measuring alignment. 

   Any and all suggestions are    appreciated.

	
   

              Denny,

  

        If I understand your problem right and  you are having trouble keeping the legs from sliding out you should be able to  use a c-clamp or c-clamp vise grips. Place them over the steel gear leg socket  and squeeze just enough to compress to contact the gear leg. This should make  them stay put.   If I dont understand what you are up against.........never  mind .

  

           Ed  Diebel





It's only a deal if it's where you want to go. Find your travel deal here.

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lcottrell

Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

Posted: Tue Aug 19, 2008 4:02 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

If that is the case with them clamped in position, you can  either lower them until they contact the floor, or tie them up with the clamped  bar.

 Larry C

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bill_joe(at)bellsouth.net
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Posted: Tue Aug 19, 2008 4:50 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

Hi  Denny.

  

       Here is how I did  mine. I jacked the plane up and put blocks under the cage just about where the  gear legs go in.  Pushed the new legs up to the mark that was put on them  by Kolb , the marks tells you how far to push them up in the tube. I too  two pieces of 5/8 rod about 12 inches each and pushed them on the axel holes.. I  then took a piece of one inch angle iron that bought at tractor supply that was  long enough to reach each axel.. Clamped that with C-clamps to the 5/8 rod and  that will give you straight alignment with 0 toe in or toe out.. Worked great  for me. You know we should take pictures when we do things like this so we can  show others. I think I will from now on.

  

       Bill  Futrell

  

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slyck(at)frontiernet.net
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Posted: Tue Aug 19, 2008 5:47 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

As you probably know already, the steel legs provide a new angular perspective to deal with.The old straight legs could be adjusted at the axle only.

Coming from an inexperienced point of view, I would use some guesswork on the legs and

then adjust the axles at a happy midpoint for an initial setting.

All the above would have to be done under full load. -no hanging from supports, etc.

Let us know regarding progress as I may go the same route eventually.

BB, sorta straight alum legs, MkIII



On 19, Aug 2008, at 6:44 PM, Denny Rowe wrote:

 	  Quote: 	
		  I recently bought an unused pair of steel (high rise) gear legs from a fellow lister to replace my original aluminum legs.

Just spent the afternoon trying to set my alignment and get them both the same.

I have the plane hanging from the hanger roof and a center line string pulled from the tail wheel to the nose hoop.

Can't seem to figure out how to hold the legs in position while measuring alignment.

Any and all suggestions are appreciated.

 

Denny Rowe

 

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rowedenny

Joined: 09 Mar 2008
Posts: 338
Location: Western PA

Posted: Tue Aug 19, 2008 7:19 pm Post subject: Installing new steel gear legs on Mk-3 Classic ?

Thanks to all for the help!!!

 I'll be off to the local metal supplier in the  morning for the 5/8" rod for alligning the axles, that is a great idea and  as simple as it gets.

  

 Denny, kicking myself for not thinking of this,  Rowe

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Dennis.Kirby(at)kirtland.
Guest

Posted: Wed Aug 20, 2008 8:22 am Post subject: Installing new steel gear legs on Mk-3 Classic ?

<< I'll be off to the local metal supplier in the morning for the 5/8"

rod 

for alligning the axles, that is a great idea and as simple as it gets.

Denny >>



Hey Denny -



Here's the cheapest way to do it: Go to Home Depot and buy a "grounding

rod," like what electricians use for grounding a house.  It's 5/8 inch

diameter, smooth, copper plated, and about 6 feet long.  You can use it

to pass thru BOTH gear fittings at once, thus eliminating the need for

the angle iron and clamps.



Dennis Kirby

Mark-3

New Mexico

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bill_joe(at)bellsouth.net
Guest

Posted: Wed Aug 20, 2008 11:32 am Post subject: Installing new steel gear legs on Mk-3 Classic ?

Hey guys the angle of the axels will not allow a solid piece of 5.8 rod 

to pass through them. I don't think they get that way even with full weight 

on them unless you have a couple guys in the plane. If we are talking about 

the new steel gear from Kolb, the hollow tubing.



        Bill Futrell

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