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| Re: [GMCnet] Drum brakes [message #329028 is a reply to message #329027] |
Sat, 10 February 2018 12:06   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Hey, this is the Era of equal opportunity. I never said "she". Funny how
our minds work, eh. Oh what pleasant memories we create within ourselves.
(Grin)
Jim Hupy
On Feb 10, 2018 9:51 AM, "Kingsley Coach" wrote:
> Let's take a moment here......" same person walking the same way, this time
> in stiletto
> heels "
> James, what does she look like?
>
> Mike in NS
>
> On Sat, Feb 10, 2018 at 12:48 PM, Jim Kanomata
> wrote:
>
>> Once one understands how the GM caliper with the paarking brake
> functions,
>> like Jim H tates, they work.
>> Many years ago people stated that they could not get them to work,
>> After asking several, I ran int Walt Halley that said they do IF you know
>> what to do. Well, I had to chase him around for a whole day till he
> finally
>> showed me why others could not mak it work.
>> It requires short stud on the pad which prevents the piston from
> rotating.
>> Without this the caliper will not adjust and the braking become very
> poor.
>> John Bush and Rick Flanagan worked on the parking caliper system for us
> and
>> John came up with a simple and inexpensive solution which works.
>>
>>
>>
>>
>> On Sat, Feb 10, 2018 at 8:26 AM, James Hupy
> wrote:
>>
>>> Didn't want to get into the math, thought EVERYONE would get a visual
>> image
>>> of stiletto heels on their back.
>>> Same amount of hydraulic pressure applied to a larger surface
> area,
>>> results in less pressure per square inch. Less friction between the
> drum
>>> and shoes. Does the increased shoe area at less pressure per square
> inch
>>> equal less shoe area at the same pressure? You discuss that one. I
> think
>>> that there is no advantage to more lining area at the same pressure.
> Wear
>>> rate? If there is less friction, linings might not wear as quickly.
>>> The whole deal with brakes is to convert kinetic energy into heat
>>> energy. Simply put, rotors and calipers simply do a much better job of
>>> that. Heat transfer to the airstream is better, too, so less chance of
>>> brake fade in heavy use. Like motor homes equipped with car brakes.
>>> I have installed Buick/Cadillac calipers with cable operated
> caliper
>>> pistons on GMC'S for parking brakes. They will work, properly installed
>> and
>>> adjusted. And they meet D.O.T. regulations.
>>> Jim Hupy
>>> Salem, Or
>>> 78 GMC ROYALE 403
>>>
>>> On Feb 10, 2018 8:06 AM, "Emery Stora" wrote:
>>>
>>>> What was I supposed to learn? Wider is better for pain in a message.
>> How
>>>> does this translate to “wider ain’t better” for brakes?
>>>>
>>>> Yes, you have less pounds/ sq inch with wide shoes but you have more
> sq
>>>> inches so the braking force is the same.
>>>>
>>>> You should get less wear on the shoes though. Probably not enough to
>>>> justify any additional cost.
>>>>
>>>> Emery Stora
>>>> 77 Kingsley
>>>> Frederick, CA
>>>>
>>>> > On Feb 10, 2018, at 8:51 AM, James Hupy
>> wrote:
>>>> >
>>>> > Think about a masseur walking up and down your back, barefoot. Got
>>> that?
>>>> > Now think about the same person walking the same way, this time in
>>>> stiletto
>>>> > heels. Which would you prefer? Now, apply what you have learned
> from
>>>> this
>>>> > example to drum brake shoes. Wider ain't better.
>>>> > Jim Hupy
>>>> > Salem, Or
>>>> > 78 GMC ROYALE 403
>>>> >
>>>> >> On Feb 10, 2018 7:45 AM, "Wally Anderson"
>>>> wrote:
>>>> >>
>>>> >> palerider wrote on Fri, 09 February 2018 21:57
>>>> >>> I seem to remember a long time ago reading about re-placing the
>> rear
>>>> >> brakes shoes with larger, wider shoes and drums. Using all stock
> GM
>>>> stuff.
>>>> >>> Maybe from truck, van etc. Anyone have that knowledge stored
>>> anywhere
>>>> >> in their gray matter? Thanks.....Tom
>>>> >>
>>>> >> Tom Hampton at Grandview has wide shoe setups
>>>> >> http://www.grandviewmotorhome.com/partsupgrades.html
>>>> >> http://www.grandviewmotorhome.com/partsupgrades.html
>>>> >> --
>>>> >> Wally Anderson
>>>> >> Omaha NE
>>>> >> 75 Glenbrook
>>>> >> Megasquirt III injection
>>>> >> Bob Stone hydroBOOOOST
>>>> >> Manny reaction arm system
>>>> >> Branscombe Kelsey Hayes park brake
>>>> >> http://wallyandsue.blogspot.com/
>>>> >>
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>>
>>
>>
>> --
>> Jim Kanomata
>> Applied/GMC, Newark,CA
>> jimk@appliedairfilters.com
>> http://www.appliedgmc.com
>> 1-800-752-7502
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>
>
>
> --
> Michael Beaton
> 1977 Kingsley 26-11
> 1977 Eleganza II 26-3
> Antigonish, NS
>
> Life is too short to hold a grudge; slash some tires and call it even !
> _______________________________________________
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