The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Happy New Year


A New Year
A New Decade
A New Vision

Ring in the new with some quality time with your old truck! A great time to tackle a winter project. If you do not have access to your truck, start your parts list for spring!
The days are officially getting longer now, you know!

Stovebolt Site Search
Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!

Who's Online Now
14 registered members (Boilermaker82, bobpos1, archburycontrol, 3 invisible), 511 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Brakes locking-up on 51 Chevy 1/2 ton Pick-Up #685466 Tue Oct 12 2010 10:31 PM
Joined: Sep 2010
Posts: 1
CLEE Offline OP
New Guy
This is all new to me, working on an old truck and trying to communicate the type of help I need. I have a 1951 Chevy ˝ ton Pick-up, that’s in “OK” condition (it runs).
The problem that I am experiencing is this, after driving the truck for 5 or 10 minutes the brakes lock-up. I am not sure if it is all four wheels that lock-up, or just the front or just the rear. On one occasion I notice some smoke coming from the right rear wheel.
Note: After the truck is parked for 5 or 10 minutes the brakes release.
About a year and a half ago, I had a mechanic install new brakes and brake cylinders (Possibly rebuilt cylinders). Also, the Master Cylinder appears to in good condition.
I have not driven the truck very much over the past year and a half due to charging and electrical problems.
Note: I am not mechanically inclined. Any help or suggestion will be greatly appreciated.

Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: CLEE] #685467 Tue Oct 12 2010 10:33 PM
Joined: Aug 2010
Posts: 81
TXChevy50 Offline
Wrench Fetcher
Emergency brake maybe? Bad linkage or something bent linkage?

1950 Chevy 3100 Blog w/Pics -
Goal: Clean, Rebuild, Paint, & Drive on a budget. Major restore of components will be done over time.
Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: TXChevy50] #685473 Tue Oct 12 2010 10:58 PM
Joined: Aug 2005
Posts: 343
magfarm51 Offline
Shop Shark
If it's the rear, pull the wheels and check for any oil leaking. If you have a bad rear seal it could be getting into the drum and swelling the brake linings.

1951 GMC 1/2-ton
Two 1953 Chevy 3100 5-window
Here's the most recent one
Synthetic Lubricants
Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: magfarm51] #685480 Tue Oct 12 2010 11:06 PM
Joined: Oct 2006
Posts: 11,765
Denny Graham Offline
Extreme Gabster
If someone rebuilt the master cylinder ain the past they my have reversed the plunger stop when they reassembled it. That will allow pressure to be applied to the system but it blocks off the compensation port and it will take a good while for the pressure to bleed back and releas the brakes.
Denny Graham
Sandwich, IL

Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: Denny Graham] #685482 Tue Oct 12 2010 11:19 PM
Joined: Jun 2004
Posts: 8,153
Wrenchbender Ret. Offline
Master Gabster
Check for free play in the master cyl. pushrod. It must have a small amount or it will hold the master cyl piston from coming all the way back like Denny says.

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.

1956 Chevy 1/2-Ton Pickup

Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: Wrenchbender Ret.] #685569 Wed Oct 13 2010 02:32 AM
Joined: Feb 2007
Posts: 435
R-Bo Offline
Shop Shark
One more thing--check your hard brake lines to see if any are bent in or pressed together. Will let high-pressure brake flued through, but will keep the shoes tight for several minutes while it leaks down back through the clogged part.

Not as likely to be the problem, but I have heard of that and if my memory serves me correctly, I had it happen once way back in the day.


1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family
Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: R-Bo] #685667 Wed Oct 13 2010 11:14 AM
Joined: Oct 2009
Posts: 141
Old Dollar Offline
Wrench Fetcher
I had the same problem with my rear brakes, I cleaned and readjusted brakes after putting new return springs on the shoes.

1952 Chevy 3100
In the Stovebolt Gallery
More pictures in Photobucket

Doin better'n some an worse than others. Life's what ya make of it. FAMILY, GOD and COUNTRY. Love it or Leave it.
Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: CLEE] #685869 Wed Oct 13 2010 10:19 PM
Joined: Sep 2010
Posts: 52
carfolite Offline
Wrench Fetcher
I would check the brake line hoses. They really should be replaced every so often. In time they swell inside, so you can't see it. You press the brake pedal and there is enough presure to force past the restricted hoses but it can't easily flow back. It's also piece of mind to replace the old rubber hoses.

Love the classics!
1954 3100
1965 Mustang vert
Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: carfolite] #685873 Wed Oct 13 2010 10:57 PM
Joined: Oct 2005
Posts: 417
wodniw5 Offline
Shop Shark
my 51 did the same it ended up being the rear seal leaking on the pads

Re: Brakes locking-up on 51 Chevy 1/2 ton Pick-Up [Re: wodniw5] #685932 Thu Oct 14 2010 01:20 AM
Joined: Mar 2004
Posts: 3,087
48bigtrucks Offline
Shop Shark
could just be adjusted a little too tight.

Scott Ward

2 1948 1.5-ton Loadmasters
The red one and The snow pusher
1 1950 3100
1 1955.1 Chevy 6500
1 1954 Chevy 6500 2-Ton
1 1955 1st Series COE 5700
1 1963 K20 (454)
1 1964 C10 (350)
1 1951 1.5-ton Dump Truck
1953 and a 1956 Ford F800

Raising a teenager is like trying to nail Jello to a tree!

Moderated by  Justhorsenround 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.3