Posted by bc on April 17, 2008 at 19:21:32 from (66.140.173.77):
In Reply to: Re: 2606 brake balls posted by GordoSD on April 17, 2008 at 07:44:07:
Thanks. The actuating disc assembly is rusty and with light pitting. It doesn't even appear as they rub much on the brake disks. But I and previous owners probably don't do much high speed braking. Moving bales and such I don't do a great amount of braking except at slow speed.
I did some measurements. The balls all caliper out at 7/8" so no wear. They fit down in the grooves in the act. disc assy and don't appear wallowed out. I'm not sure if 1" balls will fit but I may go by the dealer and check.
You may be on the right track with having the housing put on a surfacer. You said .075" and I'm thinking about .30" to .40" to take off. Inspection of the rotor plate in the housing and the one on the rear axle case show they are shiny from use and appear to be wore down some. That is probably the problem. I calipered the act. disc assy when in regular position and it came out about 1.225" thick with barely a little gap between the 2 disks. About every 1/4" of pull on the rod opened it up another .10" except at 1 1/4" it goes up .13" and the balls are ready to come out of the groove at 1 1/2" of rod pull. Basic measurements per 1/4" starting at 1.225, then 1.31, then 1.40, then 1.50, then 1.62, then 1.75, and then 1.88 at 1 1/2" pull. Basically ends up opening the assy about 5/8" of an inch spread. My inch of washers I added to the rod to make it start to engage the brakes tells me that I need to take of about .40" from the housing to allow for the wear on the rotors plates.
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