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PapaG1954 Samba Member
Joined: October 06, 2007 Posts: 73 Location: Fort Lauderdale,Fl.
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Posted: Sat Jan 28, 2023 4:02 pm Post subject: How do you achieve power Brakes in a Split Bus? |
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If I step on my brake pedal any harder, my foots gonna go thru the floor. And they were just adjusted. What would it take to have brakes like a Bay Window? |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51120 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sat Jan 28, 2023 4:54 pm Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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How old are the shoes?, have you pulled the drums for a look at the contact pattern?, ever adjusted them?
Boosting is the easy fix, but it's a band aid for bigger issues, drums work great when set up correctly and don't require massive leg muscles, sadly with today's shitty aftermarket parts that means you have to do some further work when installing them, straight outta the box rarely works well. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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Lind Samba Member
Joined: November 06, 2000 Posts: 9913 Location: idaho
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Posted: Sat Jan 28, 2023 4:58 pm Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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busdaddy wrote: |
How old are the shoes?, have you pulled the drums for a look at the contact pattern?, ever adjusted them?
Boosting is the easy fix, but it's a band aid for bigger issues, drums work great when set up correctly and don't require massive leg muscles, sadly with today's shitty aftermarket parts that means you have to do some further work when installing them, straight outta the box rarely works well. |
Exactly.
properly functioning stock brakes work great on a split bus. _________________ .
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Eric&Barb Samba Member
Joined: September 19, 2004 Posts: 24732 Location: Olympia Wash Rinse & Repeat
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Posted: Sun Jan 29, 2023 8:42 pm Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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Adjust the parking brake for five clicks when fully locked up. When you notice that it takes six clicks to lock them, it is time to readjust the brakes AGAIN. In other words use the parking brake like a dipstick for when you need to adjust the brake stars. New shoes or shoes that are not adjusted when they needed to be adjusted results in less and less of each shoe length in contact with each brake drum. Which results in that much less braking power. If this bus is your daily driver it will take weeks or a couple of months to work the brake shoes to fit snugly in the drums. _________________ In Stereo, Where Available! |
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Lind Samba Member
Joined: November 06, 2000 Posts: 9913 Location: idaho
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Posted: Sun Jan 29, 2023 9:19 pm Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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Eric&Barb wrote: |
Adjust the parking brake for five clicks when fully locked up. When you notice that it takes six clicks to lock them, it is time to readjust the brakes AGAIN. In other words use the parking brake like a dipstick for when you need to adjust the brake stars. New shoes or shoes that are not adjusted when they needed to be adjusted results in less and less of each shoe length in contact with each brake drum. Which results in that much less braking power. If this bus is your daily driver it will take weeks or a couple of months to work the brake shoes to fit snugly in the drums. |
I have seen buses with 20k miles on them where the shoes still have less than half of the pads contacting the drum. It is a really good idea to get the shoes arc'd to the drums so they get full action from day one. _________________ .
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Shoyrtt Samba Member
Joined: August 21, 2010 Posts: 1009 Location: Redlands, CA
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3foldfolly Samba Member
Joined: March 08, 2009 Posts: 894 Location: Edwardsville, Il
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Clara Samba Member
Joined: June 14, 2003 Posts: 12399
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Posted: Mon Jan 30, 2023 9:37 am Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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Lind wrote: |
Eric&Barb wrote: |
Adjust the parking brake for five clicks when fully locked up. When you notice that it takes six clicks to lock them, it is time to readjust the brakes AGAIN. In other words use the parking brake like a dipstick for when you need to adjust the brake stars. New shoes or shoes that are not adjusted when they needed to be adjusted results in less and less of each shoe length in contact with each brake drum. Which results in that much less braking power. If this bus is your daily driver it will take weeks or a couple of months to work the brake shoes to fit snugly in the drums. |
I have seen buses with 20k miles on them where the shoes still have less than half of the pads contacting the drum. It is a really good idea to get the shoes arc'd to the drums so they get full action from day one. |
X2
In good order split buses have good brakes.
If not in good order, they can be crap. Same with bay windows, or any car.
New shoes in new drums have good arcing
Also, vw says adjust your brakes every 3k mile service.
The Boise panel had awesome brakes. It was a 58, so 3/4 ton.
The shoes had perfect arc.
How old are the hoses? _________________ The Obsolete Air-Cooled Documentation Project http://oacdp.org/ |
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Bruce Amacker Samba Member
Joined: December 26, 2007 Posts: 1786 Location: Cleveland, Ohio
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Clara Samba Member
Joined: June 14, 2003 Posts: 12399
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Posted: Mon Jan 30, 2023 10:33 am Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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Fwiw I drove a friends bay with power brakes.
The brakes were really bad. Standing on the pedal barely slowed the bus. It was unsafe. Hand brake worked at least. It was a 70 westy with m coded brake booster on drum brakes.
Turned out the booster hose had fallen off the pipe on the manifold. Worked better after, but not any better that a 66 bus imho.
So….. are your brakes in working order?
Did you bleed the brakes?
Do all four bleed well with clean fluid coming out?
Is there fluid on the shoes? _________________ The Obsolete Air-Cooled Documentation Project http://oacdp.org/ |
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94touring Samba Member
Joined: October 24, 2020 Posts: 313 Location: Oklahoma - OK
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Posted: Sat Feb 04, 2023 6:51 pm Post subject: Re: How do you achieve power Brakes in a Split Bus? |
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If you have a non booster system but are running a booster style master you'll have a stiff pedal with poor braking. A non booster master has a longer stroke piston that's smaller in diameter. After you determine if you need a booster or non booster master, you then either select a master for disc/drum or drum/drum. |
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