Re: Brake pedal "meh" thinking about braided lines.
[Re: skicker]
#1594548
03/19/14 11:31 PM
03/19/14 11:31 PM
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Joined: Feb 2009
Posts: 1,274 Ontario.Canada
can.al
pro stock
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pro stock
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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let me explain.. take the calipers off the rotors and using a "spacer" narrower than the rotor,force the pistons further out. re assemble such that they are only about 1/32" off the rotors. now there will be almost no travel.
Last edited by can.al; 03/19/14 11:32 PM.
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Re: Brake pedal "meh" thinking about braided lines.
[Re: gdonovan]
#1594553
03/20/14 09:39 PM
03/20/14 09:39 PM
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Joined: Jun 2008
Posts: 10,958 Oakdale CT
gdonovan
OP
I Live Here
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OP
I Live Here
Joined: Jun 2008
Posts: 10,958
Oakdale CT
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A quick recap, since it looks like I found the problem.
1) Car was pulled into the garage with functioning 4 wheel drum brakes with a .960 manual disc brake master cylinder. No pedal problems.
2) In less than three hours the spindles were swapped out, new lines, rotors, reman calipers and pads were installed. The system was never allowed to bleed out.
3) Pedal quality was poor, multiple efforts to bleed out system with both helper and electric vacuum bleeder tool to no avail.
4) Swapped calipers from known good vehicle, pedal the same.
Tonight I installed a cast iron master cylinder with plastic reservoir and 2 to 4 bolt adapter from my '67 Dart (patiently waiting in the wings) which had manual disc/drum when I purchased it and it worked great. Don't even have an idea what year it is off, former owner mentioned late 80's truck and Autozone.
Did a half ass bleed with the unit in the car and then hooked up the lines. Bleed the master out again by cracking open the lines at the master with a helper.
Now I have an awesome pedal.
So, whats up with that?
Can't wait to road test, hope the ground is froze in the morning and I'll buzz it to work. Been raining here for several hours, driveway is mud pit.
"I think its got a hemi"
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Re: Brake pedal "meh" thinking about braided lines.
[Re: gdonovan]
#1594556
03/20/14 10:01 PM
03/20/14 10:01 PM
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Joined: Feb 2010
Posts: 1,377 Ohio
Todd
pro stock
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pro stock
Joined: Feb 2010
Posts: 1,377
Ohio
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Re: Brake pedal "meh" thinking about braided lines.
[Re: barracuda7199]
#1594558
03/21/14 12:07 AM
03/21/14 12:07 AM
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Joined: Apr 2011
Posts: 280 GEORGIA
barracuda7199
enthusiast
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enthusiast
Joined: Apr 2011
Posts: 280
GEORGIA
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Quote:
A new aluminum 1 1/32 master cylinder with adapter from doctor diff fixed your same problem on my car. Stops far better than it ever has and has the best pedal it ever had. His masters are going on all our cars from here on out.
Nailed it earlier! Glad you got it straightened out. I will say again that The good doctor diff has the best deal on the new lightweight masters with adapter.
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Re: Brake pedal "meh" thinking about braided lines.
[Re: skicker]
#1594559
03/21/14 07:38 PM
03/21/14 07:38 PM
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Joined: Jun 2008
Posts: 10,958 Oakdale CT
gdonovan
OP
I Live Here
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OP
I Live Here
Joined: Jun 2008
Posts: 10,958
Oakdale CT
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Road test was very successful! Was a riot banging through the gears and then heaving on the brakes watching the twins plastered against the seatbacks.
Would not mind a little more aggressive pad or a master with more pressure, might look into one of the Dr.Diff units!
"I think its got a hemi"
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Re: Brake pedal "meh" thinking about braided lines.
[Re: Telvis]
#1594560
03/23/14 08:29 PM
03/23/14 08:29 PM
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Joined: Jun 2008
Posts: 10,958 Oakdale CT
gdonovan
OP
I Live Here
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OP
I Live Here
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Posts: 10,958
Oakdale CT
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So I have a question while we are still on the subject of brakes- If the St.Regis rotors and caliper adapters work on the A-body spindles does it follow the pads do as well?
Under A-body part numbers there isn't much for good pads but under St.Regis there is several police and taxi pad sets listed.
I was out road testing today and it felt like on the last application of the brakes it felt faded, I don't think the Wagner premium semi-metallic pads I have on there are going to cut it.
"I think its got a hemi"
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