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  #1  
Old 09-12-2017, 08:10 PM
Ivan Kristensen's Avatar
Ivan Kristensen Ivan Kristensen is offline
 
Join Date: Mar 2008
Location: Guelph Ontario
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Default Matco brake pad issues.

During a routine inspection and tire change I found the Matco brake pads deteriorating. There was still a fair bit of pad left before the rivets but the edges had deteriorated rather than worn thereby reducing the surface area contacting the rotor.

Has anyone else experienced this problem?

Here is a comparison shot showing a new one of the same type installed.


Here is the label of the Brake Lining Kit from Matco.
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  #2  
Old 09-12-2017, 08:19 PM
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JonJay JonJay is offline
 
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I have seen some minor nicks, chips, and small voids, but nothing like that. How do your rotors look?
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  #3  
Old 09-12-2017, 08:27 PM
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Ivan Kristensen Ivan Kristensen is offline
 
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Default Brake rotors

My rotors are looking fine, they don't have the original smooth machines surface but relatively smooth.
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First flight June 28, 2010. Now 1000 hours of flight time.
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Link to my build site:
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  #4  
Old 09-12-2017, 11:54 PM
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Plummit Plummit is offline
 
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Default Looks glazed

You said "Matco" but those are Rapco linings and I believe the part number is the same for Cleveland brakes. They sure look glazed like maybe they had some grease on them.

-Marc
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Last edited by Plummit : 09-12-2017 at 11:58 PM.
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  #5  
Old 09-13-2017, 06:13 AM
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snopercod snopercod is offline
 
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Default tech@matcomfg.com

I've never seen anything like that. My advice is to send that photo to Matco tech support. tech@matcomfg.com
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  #6  
Old 09-13-2017, 07:09 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
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It looks like mice eating them. Joking, but I have never see that kind of erosion on disc pads in 50 yrs. I say erosion, because it is certainly not from rubbing contact with the friction surface. If it stuck to the disc, then why the erosion on the trailing edges?

Do you regularly use a parking brake after landing when all is hot? Wonder if it is sticking and ripping off chunks that are subsequently worn off. Let us know what the manufacturer has to say.
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Old 09-13-2017, 07:31 AM
TomSpencer46 TomSpencer46 is offline
 
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Location: ferrisburgh Vt
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Perhaps they have absorbed water on cold days. The warm brakes will melt snow that then is absorbed when they cool the freezing water expands. It gets cold here in the northeast.
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  #8  
Old 09-13-2017, 07:42 AM
Ivan Kristensen's Avatar
Ivan Kristensen Ivan Kristensen is offline
 
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Default

I stand corrected, I meant to say "Rapco" brake Pad.

I rarely use the parking brake and I don't do much winter flying as I take the plane to Florida for the winter months. I will contact the Mfg. to get their take on this issue as it surely can't be "normal"
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RV-10 Quick Build
SN # 40838 (C-GMDV)
First flight June 28, 2010. Now 1000 hours of flight time.
Home field is Waterloo Regional Airport (CYKF) Ontario Canada,

2017 VAF dues paid.

Link to my build site:
https://ivankristensen.smugmug.com/B...ENTAL-aircraft
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  #9  
Old 09-13-2017, 07:55 AM
vetterman vetterman is online now
 
Join Date: Oct 2006
Location: TX
Posts: 21
Default Brake pads

Those look typical of rapco pads. We quit using them a few years ago as they didn't last very long. We switched to APS front aero in stock. They are made of a different material and last 3-4 times longer. I also talked to George at Matco at Oshkosh and the matco pads look similiar to the APS pads. Next time I need a set I'm gonna order them from Matco and give them a try. Larry v.
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  #10  
Old 09-13-2017, 09:13 AM
Pete G Pete G is offline
 
Join Date: Aug 2015
Location: Spokane, WA
Posts: 13
Default Brake Pads

While repairing a leaking brake caliper I found the Rapco pads of my left brake in a similar condition to yours after only 162 landings. I previously had Matcos but switched to Rapco due to a lack of longevity (212 landings). Looks like Matcos were better after all. Never had this issue in 20 years with a Maule.
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