[AT] OT '68 Dodge truck brake problem

[k7jdj at aol.com]

Saw a problem like this on a front wheel disk brake which was caused by the rubber line from the frame to the caliper.  The inside of the hose had failed (no outside sign of failure),  Apparently the interior failure turned the hose into a check valve. Pressure would slowly bleed off and the wheel would rotate normally after a short time.


Gary

Renton, WA 
 

 

-----Original Message-----
From: Richard Walker <rick427 at roadrunner.com>
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Sent: Wed, Nov 7, 2012 8:51 pm
Subject: [AT] OT '68 Dodge truck brake problem


I'm posting this for a friend who has been having a heck of a 
frustrating time trying to troubleshoot a brake problem with his '68 
Dodge truck.  Any suggestions would be appreciated, thanks.  -  Richard



My problem concerns my ancient 1968 Dodge 3/4 ton Pickup. I have owned 
this truck for 30+ years and it has never given me a problem I could not 
solve, but now I'm out of ideas. Recently (and suddenly) it started 
locking up a wheel when the brakes were applied. Visual observation 
confirmed that it was the right rear wheel. When I say locks up, that's 
exactly what happens. It stops going around right NOW. And leaves a tire 
mark on the pavement where it was and there's a smell of burnt rubber in 
the air. It should be noted that if the brake pedal is feathered very 
lightly, the truck slows down, but even a little normal pedal pressure 
causes lock-up. This is such a simple brake system -- no self adjusters, 
parking brake fully relaxed. All four drums have been off; no broken 
springs or missing attachment parts; the RR wheel cylinder has been 
rebuilt (again). Any ideas ?  -  Bernie


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