Brakes problem, Help!

Suspension, Brakes, Tires, Wheels steeringetc..
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RAYMAN
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Brakes problem, Help!

Post by RAYMAN »

I have a stock w200 that I upgraded with a brake booster from a d200 camper special. After the upgrade the brakes have been self adjusting to the point of locking up. I have put in new adjusters and new springs with new shoes but the problem still remains. What else could it be? Please help.
Im old enough to know better, but young enough to do it anyway.

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dodgeboykim
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Re: Brakes problem, Help!

Post by dodgeboykim »

Check push rod adjustment going into master cylinder.
My truck is younger than me.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.

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Re: Brakes problem, Help!

Post by nutz »

did you do rear brakes at the same time
if so could have swapped self adj from one side to other ??

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Re: Brakes problem, Help!

Post by Jim100 »

I had weird brake pulling and locking and it was the adjuster not making good contact with the notched "star" wheel. I don't know why but I tweaked the little lever and even filed it a little edge and it solved it.
Not sure this is what you have but worth a look.

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Re: Brakes problem, Help!

Post by Kaegi »

Im with dodgeboykim. pushrod into MC needs to be backed off a hair

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Re: Brakes problem, Help!

Post by Hobcobble »

Kaegi wrote:
Tue Oct 20, 2020 10:16 pm
Im with dodgeboykim. pushrod into MC needs to be backed off a hair
I'd look here too. I've been through this same issue.

John

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Re: Brakes problem, Help!

Post by RAYMAN »

I'm going to check that tomorrow. Does anybody know what the proper adjustment should be?
Im old enough to know better, but young enough to do it anyway.

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Re: Brakes problem, Help!

Post by dodgeboykim »

RAYMAN wrote:
Wed Oct 21, 2020 9:21 pm
I'm going to check that tomorrow. Does anybody know what the proper adjustment should be?
Trial and error. Trial and error. Small adjustment's at a time till its correct. :thinking :thinking
My truck is younger than me.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.

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Re: Brakes problem, Help!

Post by Hobcobble »

RAYMAN wrote:
Wed Oct 21, 2020 9:21 pm
I'm going to check that tomorrow. Does anybody know what the proper adjustment should be?
To fix my issue, I backed off the adjustment enough to allow the
piston to rest against the stop and then went another 1/4 turn so
I could jiggle the adjustable rod slightly. I haven't had any issues
since. :clap

John

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Re: Brakes problem, Help!

Post by Kaegi »

thats perfect. don't need much clearance.

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Re: Brakes problem, Help!

Post by RAYMAN »

Does anyone have a good part number for brake drums i think that is playing a huge part here. I adjusted the pushrod and i still have the same issue.
Im old enough to know better, but young enough to do it anyway.

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Re: Brakes problem, Help!

Post by Wildergarten »

RAYMAN wrote:
Fri Oct 30, 2020 7:21 am
Does anyone have a good part number for brake drums i think that is playing a huge part here. I adjusted the pushrod and i still have the same issue.
Raybestos quit making them late last year.
'69 W200 (thumbnail)
'68 W200 (RIP)
'68 W200 383 NP435 3.53
'67 W200 383 NP435 4.10 w overload springs, Dana 60, PTO winch & flatbed dump, racks, crane, c-air (Max)
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Re: Brakes problem, Help!

Post by RAYMAN »

Wildergarten wrote:
Fri Oct 30, 2020 7:57 am
RAYMAN wrote:
Fri Oct 30, 2020 7:21 am
Does anyone have a good part number for brake drums i think that is playing a huge part here. I adjusted the pushrod and i still have the same issue.
Raybestos quit making them late last year.
Do you have the part number i think i have found one but dont want to just chance it.
Im old enough to know better, but young enough to do it anyway.

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Re: Brakes problem, Help!

Post by Wildergarten »

RAYMAN wrote:
Fri Oct 30, 2020 8:01 am
Do you have the part number i think i have found one but dont want to just chance it.
Here is all I have for 61-68:
W200 Front: 12170-C
W200 Rear: 12171-C Max ID 12.210" (+0.090" allowable, 0.045" cut)
Bendix PDR0183
Bendix 140183 (US made)
Raybestos 2949R Canada

Turns out the numbers are different for '69-74 and some of them ARE available. Unfortunately, the numbers are for various types of axles and you'll have to match the styles and specifications to your truck.
'69 W200 (thumbnail)
'68 W200 (RIP)
'68 W200 383 NP435 3.53
'67 W200 383 NP435 4.10 w overload springs, Dana 60, PTO winch & flatbed dump, racks, crane, c-air (Max)
Mark Vande Pol
Wildergarten.org

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Re: Brakes problem, Help!

Post by Kaegi »

when they lock up have you jacked it up and checked to see if its all 4 wheels or just the front, rear or one wheel?

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Re: Brakes problem, Help!

Post by Hobcobble »

I'm assuming you've replaced all of the rubber hoses as well? :thinking

John

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Re: Brakes problem, Help!

Post by RAYMAN »

Yes, I have replaced the rubber lines. the only thing i reused was the steel lines. It is usually the fronts first then the rears. if i back the brakes on the front off then the next day the rears will lock up.
Im old enough to know better, but young enough to do it anyway.

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Re: Brakes problem, Help!

Post by PwrWgnDrvr »

Are you saying that when they lock up the only way to release them is to back off the adjusters? And then after awhile those same brakes lock up AGAIN and you AGAIN back off the same adjusters? If that is the case, it is NOT a hydraulic issue NOR a pushrod issue. it is an ADJUSTER issue!

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Re: Brakes problem, Help!

Post by RAYMAN »

I have all new adjusters and shoes and springs. I think the drums are worn so much that when i step on the brakes it pulls the adjuster cable before the shoe hits the drum. I am trying to locate drums now. Does anyone know if the 72 -75 drums are the same. they look really close online.
Im old enough to know better, but young enough to do it anyway.

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Re: Brakes problem, Help!

Post by PwrWgnDrvr »

I just looked in the FSM brakes section. Under troubleshooting there is NO condition mentioned where the adjusters lock up the brakes. In the short section on the adjuster, it gives a method for checking their function. Get an FSM and study that. Note: the adjusters operate ONLY when applying brakes while moving in REVERSE. I have never experienced or heard of oversize drums causing a condition like this.
Look back at your history. If this started AFTER the booster upgrade, but the drums are still the same, why did it not happen BEFORE? Did you put new adjuster cables in that are a wrong length? Are you absolutely positive the adjusters are on the correct side? One is for the right, one is for the left. If backwards, they will definitely lock up the brakes.

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