Mark T

IDK.   It was the first thing I thought of.  ( I'm thinking I likely owe the new guy an appology )

The guy you asked for the offset keyway.  

21 hours ago, Joey Mack said:

Welcome to the Dog Pound..  I'm curious where you are a Parts guy..  I'm in Salisbury..   If you dont care to post it, thats ok..  I bet you will be able to help the guys with MP's and MDrives..

Careful Jojo.....don't forget keyway guy 🤣

😏 like the dude that started this.  He needs new slacks and it should have cams and bushings.

Exactly. None of them work when the components are worn out.  

4 hours ago, mrsmackpaul said:

So with a 3 inch stroke is the angle of the slack adjuster set to 90° to the maxi can rod with no adjustment on on the brake and then once this geometry is set the brake adjusted as normal ?

 

You never know, I met get all modern one day and need to know this stuff 

 

Paul

Depends what wheel position. Here they weren't as popular on drives as on a steer axle or some auxilury axles. Sometimes on drives they (long strokes) would be type 36 chambers. Usually when you buy a new automatic slack adjuster they come with a template in the packaging. The geometry of them is a little different from manufacturer to manufacturer, but still basically within the 90 degree thing. They just have different adjusting methods. Still above and beyond all, everything needs to be in good shape and maintained. They work and have a life span just like anything else.   The Haldex (manufacturer)  ones in this thread require a little wand anchored to the cam tube and an adjusting strap that's a strip of stainles steel that sandwiches in between a chamber mounting stud. Then after you get your angle as per the instructions, you set that little pointer arrowy thing in the little window on the slack. Tighten it's nut, and you're ready to go.  There's several different types. They're automatic, but not maintainence free.  So on some of the setups, the long stroke makes sense becuase of all the different slack adjuster arrangements there are now. Your basic Q shoes with a five and a half inch slack..... not so much. 

8 hours ago, mrsmackpaul said:

Joey are these type the same length as a normal slack adjuster  ?

If so with 3 inches of stroke they could very easily push the cam past were it needs to be

Sorry Im not try to hijack the thread, Im just curious about this stuff

 

Paul 

These came into existence around the same time as extended life brake shoes .  Way more geometry goes into brakes than most guys think.

I don't get this one (lol)  Haldex slacks work very well. That one's serviceable life has come to it's end. The nylon bushing is worn , you can see where the clevis was on it and it's been greased.  It even has black paint left on it.  It's just worn out, and likely had a long life already. 

I remember once, guy changed oil in the truck. Pushed the cable out of his way and never put it back in position. Huge difference in effort to push the clutch in. Of course that was once, but it happened

Those slacks are junk. Likely you need cams and bushings too.  A new slack will work for a while. It's gonna do the same thing if the cams are shot though. 

I'd look at the cable. It should make a nice curved ark and not be shoved out of the way or anything like that. Maybe even disconnect it from the release lever on the clutch housing and see how it feels unhooked. It's not impossible it needs to be replaced .

I believe I've heard those referred to as " 50 s "

I kinda think (wild guess) he's talking about Haldex slacks on a Mack. Sounds kinda like what they do when the cams and bushings were worn and the serated ring for the adjustment is rounded off. Again, just a guess.

1 hour ago, mowerman said:

Also, there’s another lost  model I think I’ve only seen one in a picture past 40 years

You're probably thinking of the 5000 . I often thought for as many Whites as used to be around, it's odd they're a rare sight today. All models , cause rhey had several.

Ahhhhh......look at all those hometown celebrities in that picture.  

Whites (3000s) were pretty popular. I agree with Bob, several were garbage trucks around here when I was a kid. Several were something else too.  I think that the engines were the reason White aquired REO.  They may not be the absolute hardest thing to find parts for. Engine wise anyway, the truck ???  I haven't seen one in years, even sitting around .

Sometimes with stripper, it helps to scratch into the paint with some 40 grit sandpaper.  Not so much as to sand it , but to get some deep scratches into the paint being stripped. It helps the stripper do it's thing. Espesially if there's several coats of paint to remove.

2 hours ago, 70mackMB said:

Geeze, at a glance I thought that was leteesha james.  

7 hours ago, BOBWhite said:

I never remember that on my Mh, are they different? I never noticed the Superliners steering box either. Probably not much room for the box inside the frame with the v8 in there though. 

Front ends and suspensions are definitely not my area of expertise, especially the newer stuff. We still run trucks that don't have front brakes 

That's not a V8 thing.  Superliner 1s had a different arrangement with the frame in the front and the steering box is mounted on the steering axle itself.   I'd imagine by now it'd be virtually impossible finding parts related to that setup.