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Let's try this again; flatcat's 521


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Oh and the 4 spade connector is like $2.50...

 

Then you can get the six spade one to delete the external regulator also.. for $2.50. 

 

Not sure what they are like on the 521 though.. probably the same.

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Thank you.

 

 

So, brake question for the 521 guys...

 

Cold, everything works fine. Stops great. Tools smooth.

 

When warm, feels like brakes aren't releasing.

Cruising slow, step on clutch to switch gears truck almost stops all on its own.

 

Pedal rod adjustment? Something I'm overlooking?

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Thank you.

 

 

So, brake question for the 521 guys...

 

Cold, everything works fine. Stops great. Tools smooth.

 

When warm, feels like brakes aren't releasing.

Cruising slow, step on clutch to switch gears truck almost stops all on its own.

 

Pedal rod adjustment? Something I'm overlooking?

 

 

Brakes could be overadjusted.....getting hot then expands and starts dragging.....

 

.........happens to modern drum brake trucks actually......

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|   True there. They should drag just a touch when cold. Maybe the adjuster or wheel cylinder has a bur in it. Does the adjuster spline on the backside of the wheel slide back and forth freely? I had to grease mine something seriously to break up all the old corrosion. Worked great.

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Brakes could be overadjusted.....getting hot then expands and starts dragging.....

 

.........happens to modern drum brake trucks actually......

  

Yeah, sounds like brake drag. Feel your wheels after a drive.. I bet some are hotter at the hub than others.

  

 

They barely dragged on my final adjustment. I'll back em off a bit tonight.

 

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|   True there. They should drag just a touch when cold. Maybe the adjuster or wheel cylinder has a bur in it. Does the adjuster spline on the backside of the wheel slide back and forth freely? I had to grease mine something seriously to break up all the old corrosion. Worked great.

Completely rebuilt the adjusters. Look back a page or two.

Every piece of my brakes is new or thoroughly gone-over short of the hard lines.

 

 

 

Thanks smart guys.

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Never had a problem with drum brakes other than they are terribly inefficient. It's all in the adjustment. Sounds like you have yours too tight. Spin the drum with one hand and adjust with the other if possible, as soon as you feel any change stop there.

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