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| | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | Slowing down for a turn, doing about 15-20, the driver's rear brake locked up on me. Enough that I had screeching a tire. It was locking up a bit earlier but this was the worst case. I can get going again easily enough.
The truck has been away for 4 months although I did roll it out of the garage and up and down the street a couple of times during that period.
I know it could be a few things, like a return spring or a rusty drum but before I take it apart I'd like to have some idea of what I'm in for.
Thanks. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Probably has a leaking rear axle seal or wheel cylinder. Pull the drum & see what you got.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | So far today I have just taken off the hub cap and checked the rim both sides for fluid. Bone dry. Had a seal problem with my 53 and the rim and cap as well as the drum were saturated.
Hoping its not a seal, rather it be a cylinder.
Will pull the drum tomorrow and if it still looks okay, maybe a good cleaning of the shoes and some emery cloth on the drum might help. | | | | | Joined: Feb 2007 Posts: 513 Shop Shark | | Shop Shark Joined: Feb 2007 Posts: 513 | my 49 did something like that at one time, it turned out something hit the brake line, and put a very slight knick in it, and i went to put the brakes on and it locked up, might even want to get you lines
1949 Chevy 3600 Flatbed all orginal 1964 gmc 4000 1973 gmc 6000 2005 chevy duramax 4x4 1994 chevy 1500 Trucks are GM and Tractors are Orange "I don't measure a man's success by how high he climbs but how high he bounces when he hits bottom." - General George S. Patton | | | | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | Mike I have new lines all around. Good tip though, thanks. | | | | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | Well its not an axle seal but an issue with a wheel cylinder. Not leaking but might be stuck internally and not returning. Tryting to adjust it now but the pronged end cap is too far out of the cylinder body. If I force it back in the other side moves out. I found new cylinders at FLAPS so will consider changing it. | | | | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | What happened was when someone pushed on the pedal with the drum off, one of the pistons became dislodged and sucked in a bit of air. This prevented the pistons from returning. Had to bleed that cylinder and put them back that way. A good tip I found out later is to jam the brake shoes in place with a pair of screwdrivers when someone pushes the pedal. This way the pistons will not come out too far.
As far as the lock-up is concerned, it seems the cylinder was leaking a bit onto the shoe. One shoe has a shiny spot on it and emery cloth will not take it off. As well the pistons are a bit pitted so I am going to replace it all. | | | | | Joined: Dec 2005 Posts: 101 Member | | Member Joined: Dec 2005 Posts: 101 | Take alook at the check valve that goes into your booster. I had a problem similar to yours so one day I got under the truck an noticed that the check valve was broken. I replaced it and the brakes are now fine!
Roger
Roger
http://www.flickr.com/photos/45469713@N00/?saved=1
| | | | | Joined: Dec 2003 Posts: 2,953 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 2,953 | Roger thank you for the tip. These are good old original Huck brakes with Armstrong (or is it Legstrong power.
Bill | | |
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