|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
03-17-2021, 11:39 AM | #21 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
We will have to agree to disagree.
No foul, no harm.
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-17-2021, 02:14 PM | #22 |
Senior Member
Join Date: May 2010
Location: Phoenix,AZ
Posts: 1,417
|
Re: Dual chamber master cylinder for drum brakes
Seems like this has gotten a bit off track with responses, and since you are sticking with a drum to drum master cylinder this video may give you a few pointers being that the Mustang drum/drum master is used in our 50's Fords. https://www.youtube.com/watch?v=WeBDLoGQ79Q&t=71s I love this tool ! https://www.harborfreight.com/brake-...der-92924.html So when I did my brakes on my '54 it was about 108 outside in Phoenix and the garage fridge had cold PBR I somehow forgot to do the bench bleed so I thought I would turn on my compressor hook up the tool and give it a shot starting with the passenger side rear bleeder then moving to the drivers side rear and guess what ? No air and a firm pedal in less than 10 minutes went ahead and did the fronts just because all the wheels cylinders were all new and still no air and a firm pedal. A lot of guys will also convert the old Ford troublesome brake sender to a GM style that works off the pedal by fabricating a simple bracket check the 1952-59 Ford Social Group for pictures of those from the members.
Last edited by JeffB2; 03-17-2021 at 02:26 PM. |
Sponsored Links (Register now to hide all advertisements) |
|
03-17-2021, 04:46 PM | #23 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
How has this thread gotten off-track in your opinion?
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-19-2021, 03:02 AM | #24 |
Senior Member
Join Date: May 2010
Location: Phoenix,AZ
Posts: 1,417
|
Re: Dual chamber master cylinder for drum brakes
When you start throwing prop valves and residuals into the mix which he doesn't need with a manual dual master for drums it can get confusing for some,just saying. Sometimes the KISS method is best.
|
03-19-2021, 03:20 AM | #25 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
What the insertion of that reference was intended to do is warn people of how they can be taken advantage of by unscrupulous and/or un-knowledgeable vendors.
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-21-2021, 08:02 AM | #26 |
Senior Member
Join Date: Aug 2014
Posts: 721
|
Re: Dual chamber master cylinder for drum brakes
Sponsored Links (Register now to hide all advertisements)
|
03-21-2021, 09:07 AM | #27 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Are you referring to DRUM/DRUM or DISC/DRUM?
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-25-2021, 07:29 AM | #28 |
Senior Member
Join Date: Aug 2014
Posts: 721
|
Re: Dual chamber master cylinder for drum brakes
|
03-25-2021, 07:49 AM | #29 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
You are referring to what type of 'rear bias adjuster'?
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-28-2021, 07:34 AM | #30 |
Senior Member
Join Date: Aug 2014
Posts: 721
|
Re: Dual chamber master cylinder for drum brakes
|
03-28-2021, 10:31 AM | #31 | ||
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Now wait a minute ...
First you say there is no need for a PPV on a car (DRUM/DRUM I a$$-u-me), then you state you only used a distribution block. Now you are saying you are using an ADJ BIAS VALVE on your DRUM/DRUM fully opened? You have a DRUM/DRUM DUAL RESERVOIR MC upgrade? The last photo below is a FORD (Weatherhead) free-standing PDV (Pressure Differential Valve/Distribution Block of the seventies period (no PROPORTIONING/METERING VALVE). If you do not want the WARNING LAMP, don't use the circuit. EDIT - ONE MORE TIME Quote:
Quote:
Are you saying you have an early disc/drum upgrade with no valving on the street? You know, this why SEMA has to continually fight the FEDS who want to put a stop to owner repair/modifications.
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) Last edited by KULTULZ; 03-28-2021 at 06:36 PM. Reason: CRS |
||
03-29-2021, 07:43 PM | #32 |
Senior Member
Join Date: May 2010
Location: Midland Park, NJ
Posts: 3,965
|
Re: Dual chamber master cylinder for drum brakes
He said it was wide open
__________________
48 Ford Conv 56 Tbird 54 Ford Victoria |
03-29-2021, 07:46 PM | #33 |
Senior Member
Join Date: May 2010
Location: Midland Park, NJ
Posts: 3,965
|
Re: Dual chamber master cylinder for drum brakes
If you want the skinny on what master to use, go to the experts make and sell conversion parts. Try Engineered Components Inc (ECI) in Conn. for advice. They make all kinds of kits for brake conversions.
__________________
48 Ford Conv 56 Tbird 54 Ford Victoria |
03-30-2021, 12:00 AM | #34 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
03-30-2021, 12:07 AM | #35 | |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Quote:
That CORVETTE MC goes well with the INTERSTATE BATTERY and STANT radiator cap.
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
|
03-31-2021, 07:54 AM | #36 | |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Quote:
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
|
03-31-2021, 09:15 AM | #37 | |
Senior Member
Join Date: May 2010
Location: Granger (Northern) Indiana
Posts: 1,517
|
Re: Dual chamber master cylinder for drum brakes
Quote:
While most of the above info on proportioning valves is correct, the actual operation is not. Fluid is never "blocked", but is delivered based on the percentage value of the valve once the "crack point" pressure is exceeded. As for drum brakes, some proportioning could have preceded disc brakes if the earlier D.O.T. brake performance requirements had been much stricter, like those starting in the mid '70s. A good example of the possible need for a drum prop valve is when using late duo-servo rear drum brakes with obsolete non-servo front drums, something done often with old (pre-'49) Fords. Last edited by V8 Bob; 03-31-2021 at 03:31 PM. |
|
04-01-2021, 12:32 AM | #38 | |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Quote:
GM did use a PPV on some all drum applications. Makes perfect sense to me. But ABS has changed all of this. What I am trying to point out is that the ill-conceived notion that an ADJ PPV will correct all situations. That is why they are not approved for the street. Their function is race car only. Some of these so-called "BRAKE KIT SELLERS" are dangerous (IMO). INFO SOURCE BELOW - https://www.brakes-shop.com/brakeped...tioning-valves
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
|
04-01-2021, 08:08 AM | #39 | |
Senior Member
Join Date: May 2010
Location: Granger (Northern) Indiana
Posts: 1,517
|
Re: Dual chamber master cylinder for drum brakes
Quote:
^^^ |
|
04-01-2021, 09:39 AM | #40 |
Senior Member
Join Date: Aug 2012
Location: IN A 'GALAXIE' FAR FAR AWAY
Posts: 6,416
|
Re: Dual chamber master cylinder for drum brakes
Originally Posted by KULTULZ
Can we agree on restricted flow as pressure increases at the knee point? No. The pressure is reduced to a percentage of master cylinder output. Has nothing to do with flow. - So a restriction in a hydraulic system will not reduce flow? What I am trying to point out is that the ill-conceived notion that an ADJ PPV will correct all situations. That is why they are not approved for the street. Their function is race car only. Using an ADJ PPV may not correct all situations, but is a better alternative to a fixed value PPV designed for an entirely different vehicle and/or brake system. - You would have to figure out the newly modified braking systems and then apply a PPV to that. The best method is to study an original application and not fall for RACE CAR ONLY SYSTEMS. ADJ K/H PPVs were used on some mid-'60s Lincolns/T-Birds - Please give me an exact example. News to me. Some of these so-called "BRAKE KIT SELLERS" are dangerous (IMO). Most have improved their "tech" over the years, although a couple still need improvement. What's more troubling to me is the lack of basic brake system knowledge obvious on most forums, especially dual systems, that have been around for almost 60 years! - AGREED! - And most of the advice given is even more puzzling and dangerous.
__________________
***** - DISCLAIMER -
The above posted information is in my opinion only (IMO) and may contain copy and paste material(s). In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data. Your experience(s), opinion(s) and mileage may vary. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) Last edited by KULTULZ; 04-01-2021 at 09:53 AM. |
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|