Re: Brakes need pumped to work, why?

I am installing the same parts from Master Power Brake along with the larger 11 1/8th rear disc brake kit; thus I am using a disc/disc system with the same 1”bore master cylinder and the same proportioning valve calibrated for disc/disc systems.

Gary Pavlovich

From: furyus63@xxxxxxxxxxx

Sent: Friday, February 03, 2012 7:45 AM

To: 1962to1965mopars@xxxxxxxxxxxxxxxx

Subject: Re: Brakes need pumped to work, why?

Bill,

I did the manual disc/drum conversion on both my 63' Fury and 63' Sport Fury, your 62-65 Belvedere would be the same.

Parts for manual disc/drum conversion;

Master Cylinder MC11571P/M

Combination Valve VL3360K

Adjustable Push Rod PR4722K

I purchased my parts from Master Power Brake. Everything worked well plus very good tech support.

Nick Tiberio

FuryUs63

From: "Bill Paxton" <wmp4@xxxxxxxxxxxx>
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Sent: Friday, February 3, 2012 10:13:36 AM
Subject: RE: Brakes need pumped to work, why?

Disc/drum. I have the caliper bracket to use the larger rotors also.

From: 1962to1965mopars@xxxxxxxxxxxxxxxx [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of furyus63@xxxxxxxxxxx
Sent: Friday, February 03, 2012 10:04 AM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Subject: Re: Brakes need pumped to work, why?

Bill,

Are you disc/drum or disc/disc?

Nick Tiberio

FuryUs63

From: "Bill Paxton" <wmp4@xxxxxxxxxxxx>
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Sent: Friday, February 3, 2012 6:57:31 AM
Subject: RE: Brakes need pumped to work, why?

I'll be running the larger disc brakes on my belvy. Non power. What m/c should I use?

-----Original Message-----
From: 1962to1965mopars@xxxxxxxxxxxxxxxx [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of Jim Altemose
Sent: Thursday, February 02, 2012 3:22 PM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Subject: Re: Brakes need pumped to work, why?

Are you disc and drum? Did you convert from drum / drum? Did you add
or do you have a proportioning valve?

- Jim
Jim Altemose, Long Island, NY
'63 Polara 500 (Max Wedge)
'63 Polara 500 (383)
'65 Belvedere I (Street Wedge)
'71 Bronco

On Wed, Feb 1, 2012 at 11:43 PM, Eric R <hoodoovoodooray@xxxxxxxxx> wrote:
> Thanks Daniel. I'll try the other stuff first, then look into the
> bore size. Yes, it's a disc/drum m/c.
>
> This m/c was supposedly "new" from Rock Auto. But, it also was a
> closeout at $30.
>
> I think there's good ideas here. Thanks!
>
>
>
> On Feb 1, 11:38 pm, "Daniel McCormack" <mcwhe...@xxxxxxxxxxxxxx>
> wrote:
>> Eric the Dart MC you used is for front disc rear drum brakes correct? The
>> rear chamber is larger than the front and the rear chamber goes to the front
>> brakes right? Assuming all that is correct do you know what size bore that
>> Dart MC has? Years ago I converted a 56 Ford F-100 to a torsion bar front
>> suspension from a Chrysler Cordoba. (yes there's a kit out there to do that)
>> I used the disc brakes from the Cordoba and a Dart MC and ran into the exact
>> problem you're describing. Turns out the bore of the MC was too small for
>> the Cordoba calipers. Switched to a larger bore MC and the problem was
>> solved. The other possibility is that the MC is defective. Was it brand new
>> or a rebuilt? I've never had any luck with a rebuilt MC.
>>
>>
>>
>> -----Original Message-----
>> From: 1962to1965mopars@xxxxxxxxxxxxxxxx
>>
>> [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of Eric R
>> Sent: Wednesday, February 01, 2012 7:13 PM
>> To: The 1962 to 1965 Mopar Mail List Clubhouse
>> Subject: Brakes need pumped to work, why?
>>
>> I converted to AAJ discs. Used a 1976 Dart dual master cylinder. No
>> leaks anywhere.
>>
>> I bench bled the master cylinder best I could.
>>
>> I bled the brakes using a hose and check valve into a jar of brake
>> fliud. This works on all my other vehicles. I ran quite a bit of
>> fluid through to make sure.
>>
>> Brake pedal goes straight to floor but will pump up quickly and hold
>> pressure. As soon as I let up and pedal comes all the way to the TOP
>> the brakes are gone again and need to be pumped. If I just let up a
>> little I don't lose them.
>>
>> I then gravity bled them all for a few hours.. Two rears at same
>> time , then two front at same time.
>>
>> Still get the same result.
>>
>> I thought I read something about the Dart M/C losing pressure
>> somehow? Or, is it air in m/c? Bad m/c?
>>
>> Any advice is great ... I would loooove to drive this car oneday.
>
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Please address private mail -- mail of interest to only one person -- directly to that person. That is, send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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Please address private mail -- mail of interest to only one person -- directly to that person. That is, send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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