The Ford Barn

Gino · 10-03-2013, 11:41 AM

I've tried backing off the wedge adjustment but the front brakes lock up but release correctly. Any suggestions? Visual inspection looks ok. New break job six months ago. Thanks for the help

Tom Wesenberg · 10-03-2013, 12:28 PM

Are you using floaters?
Are the backing plate bolts tight? If the bolts are loose or the king pin and bushings worn, then the brake assembly can rotate forward when the brakes are applied, and this will apply the brakes even harder.

john charlton · 10-03-2013, 04:17 PM

I had this problem with my AA truck . Turned out the spring perch was loose in the axle . This was not readily visible only a slight rust stain around the base of the perch was the clue . Very luckily the perch was not seized in the axle so I tightend it up and cured the lockup . As the axle rotated on brackeing the brake lever was affected by "servo action"

John in rainy evening Suffolk County England.

Jim/GA · 10-03-2013, 04:26 PM

Make sure your wheel bearing nut is tightened properly. Just takes a minute to check.

Gino · 10-03-2013, 06:58 PM

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Thanks guys, I hope someday I'm savvy with Model A's and can help others.

10-03-2013, 11:41 AM	#1
Gino Senior Member Join Date: Oct 2011 Location: Falmouth, Ma. Posts: 313	Front left locking up I've tried backing off the wedge adjustment but the front brakes lock up but release correctly. Any suggestions? Visual inspection looks ok. New break job six months ago. Thanks for the help

10-03-2013, 12:28 PM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Front left locking up Are you using floaters? Are the backing plate bolts tight? If the bolts are loose or the king pin and bushings worn, then the brake assembly can rotate forward when the brakes are applied, and this will apply the brakes even harder.

10-03-2013, 04:17 PM	#3
john charlton Senior Member Join Date: May 2010 Posts: 1,304	Re: Front left locking up I had this problem with my AA truck . Turned out the spring perch was loose in the axle . This was not readily visible only a slight rust stain around the base of the perch was the clue . Very luckily the perch was not seized in the axle so I tightend it up and cured the lockup . As the axle rotated on brackeing the brake lever was affected by "servo action" John in rainy evening Suffolk County England.

10-03-2013, 04:26 PM	#4
Jim/GA Senior Member Join Date: May 2010 Location: Young Harris, GA Posts: 1,821	Re: Front left locking up Make sure your wheel bearing nut is tightened properly. Just takes a minute to check. __________________ Jim Cannon Former MAFCA Technical Director "Have a Model A day!"

10-03-2013, 06:58 PM	#5
Gino Senior Member Join Date: Oct 2011 Location: Falmouth, Ma. Posts: 313	Re: Front left locking up Sponsored Links (Register now to hide all advertisements) Thanks guys, I hope someday I'm savvy with Model A's and can help others.