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Replacing the brakes & wheels on my Allegro

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jlhazen(at)copper.net
Guest

Posted: Mon Apr 05, 2010 9:39 am Post subject: Replacing the brakes & wheels on my Allegro

Are you going to change the nose tire?  I have thought about bigger tires for back country dirt strips but nosewheel clearance seems to be an issue.



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timpry

Joined: 17 Feb 2010
Posts: 10

Posted: Tue Apr 06, 2010 6:46 am Post subject: Re: Replacing the brakes & wheels on my Allegro

I was not planning on replacing the nose wheel.

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hgmckay

Joined: 23 May 2006
Posts: 397

Posted: Mon Apr 12, 2010 12:42 pm Post subject: Replacing the brakes & wheels on my Allegro

Please do post pictures of this project. I have an Allegro 2000 and am 

having the hydraulic brakes tend to periodically stick (i.e. the shoe not 

relaxing off of the disc). I think this may be be caused by the small 

hydraulic piston in the caliper sticking. It does not do do this all the 

time, and I only see it after I have landed and am trying to move the plane 

by hand. If the plane sits over night the problem is gone. Anyway, if I 

can't find out how to correct this problem on the brakes I now have I may 

have to change in the future.



Hugh McKay

Allegro 2000

Rotax 912 UL

N661WW



--------------------------------------------------

From: "timpry" <timpry(at)gmail.com>

Sent: Monday, April 12, 2010 9:47 AM

To: <allegro-list(at)matronics.com>

Subject: Re: Replacing the brakes & wheels on my Allegro



 	  Quote: 	
		   



 Well I am still not quite done with this project..  The primary problem 

 was the T fitting I bought from aircraft spruce was supposed to have 1 

 1/8" npt and 2 1/8" compression fittings.  It had 3 1/8" compression 

 fittings instead..  I am ordering a second T fitting in the hope that it 

 will be correct.



 The new wheels, tires, brakes, brake lines & master cylinder are 

 installed.. everything is looking fine.



 Major parts list:

 Matco MHMHE6B1.25 EV  (matco wheel / brake assembly)

 Matco WHLAXLE3EV         (matco axle)

 matco Mc-5 master cylinder

 MCCREARY AIRTRAC 600-6 tires



 high pressure tubing, right angle and t fittings, aircraft quality bolts, 

 washers, lock nuts.



 I would probably recommend using 1/4" brake line.. since it is a LOT 

 easier to find fittings in this size.. in the event you are missing 

 something..  say a T fitting...

 Total cost of materials was about $900

 total time invested so far.. about 20 man hours.

 I will probably post pictures of the finished product once everything is 

 complete.





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=293954#293954

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Tue Apr 13, 2010 3:02 am Post subject: Re: Replacing the brakes & wheels on my Allegro

I have Matco brakes on my Kolb Slingshot and they are good brakes but if I were going to change Allegro brakes to a different type I would probably choose the following:



http://www.flyfbi.com/html/hydraulic_brakes.html



I was giving a BFR to a Challenger owner last year in his airplane which had these brakes installed. The best braking action I've seen on an LSA and inexpensive.

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_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

hgmckay

Joined: 23 May 2006
Posts: 397

Posted: Tue Apr 20, 2010 5:00 pm Post subject: Replacing the brakes & wheels on my Allegro

Can you post a picture of the Matco brakes as they appear on your Allegro?



Hugh McKay

Allegro 2000

Rotax 912 UL

N661WW



--------------------------------------------------

From: "timpry" <timpry(at)gmail.com>

Sent: Tuesday, April 20, 2010 10:25 AM

To: <allegro-list(at)matronics.com>

Subject: Re: Replacing the brakes & wheels on my Allegro



 	  Quote: 	
		   



 Well I finally got a chance to condition the brakes.. and give them a 

 proper test.   On their best day the Evektor brakes would barely hold the 

 plane at 3500rpm.    I stopped testing the Matco brakes at 4900 rpm.    So 

 I would say they are an improvement...  Also they appear to be easier and 

 cheaper to maintain.



 Overall I am pretty happy with the decision and the results.





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 http://forums.matronics.com/viewtopic.php?p=294956#294956

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