C-6 Servo Air Test

C-6 Servo Air Test

Joined: March 1st, 2012, 4:28 am

May 19th, 2012, 1:54 am #1

I'm rebuilding my C-6 using a Bad Shoe/Broader/ factory shop manual method.
I'm to the point where I'm doing the air checks and everything is good except the servo, which leaks and does not move at all when I hit it with air.
I had the "newer" style one piece servo in there first and then I rebuilt my old style servo and the results are the same. The air seems to be blowing out of the hole the servo shaft rides in.
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Joined: November 18th, 2004, 4:20 am

May 19th, 2012, 3:42 am #2

You may be applying air to the release chamber.

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Joined: March 1st, 2012, 4:28 am

May 19th, 2012, 3:57 am #3

The drawing confirms I'm hitting the supply port...thanks tho!
Last edited by bad250 on May 19th, 2012, 3:58 am, edited 1 time in total.
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Joined: January 21st, 2005, 3:11 am

May 20th, 2012, 1:12 pm #4

The servo pin case bore might be worn. Try the piston in the case without the servo cover and see if the pin is loose in the bore. If it's ok, lub up good and reassemble being sure the servo moves good in the servo cover. Be sure your air blower has a good seal at the port and blow with full air pressure and it should work.

Ken Collins, BadShoe Productions, How To DVD's specializing in Ford drivetrains www.badshoeproductions.com (banner ad below)
email; badshoe@myway.com
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Joined: March 1st, 2012, 4:28 am

May 20th, 2012, 5:12 pm #5

Thanks Ken! I tried a third servo and it sort of moved. I then found your You Tube video on air testing a C-4 and realized I need to hit that servo with some AIR!!
I was babying it at 25-30 PSI. 50-60 PSI makes the good servo pop the band in a hurry.
I learned that a lower pressure works fine for other air checks, but I guess the spring in the servo demands more pressure to make it move.
Your video is has been a huge help!
Thanks!
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