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#1 |
Registered User
Join Date: Feb 2016
Location: BACK in Southern Oregon... Don't ask
Posts: 151
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CPP front disc brake swap, brakes sticking and smoking a bit
Ok so i finished doing the CPP front disk brake upgrade, bled the lines, fixed all the leaky spots. Went on a drive, and about 10 minutes in, it felt like my rig was slowing down and needed more gas pedal. Funny smell, knew it was the brakes when I pulled over and saw some smoke... i am running a combination valve and dual chamber MC from a 72 c10, mated to a power booster from a 77 c20 (i believe the model is correct, not quite sure,) and the stock pedal rod, with a modified bracket. After I let it sit for about am hour, the pedal went back to normal (it was super tight with no play during the issue.) I'm wondering if i need to get a shorter brake rod or just remove the booster completely? Figured Id come here first to see what you guys think!
Thank you in advance guys!! |
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#2 |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
I would try shortening the brake rod first. I had that same problem once.
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#3 |
Registered User
Join Date: May 2014
Location: Los Angeles, CA
Posts: 141
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
I had an issue where my brakes would lock up, almost feel like the truck was slipping. Turned out to be the booster plunger (rod) that engages with the master cylinder. It was too long, making the brakes engage even without a foot on the pedal. And then as it got warm, it got worse. I would start there as well.
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#4 |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
Check Booster Pushrod Adjustment - Not Brake Pedal Push Rod:
http://www.classicperform.com/TechBo...ot.htm#pushrod
__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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#5 | |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
Quote:
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. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#6 |
Registered User
Join Date: Oct 2016
Location: san bernardino ca
Posts: 1,611
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
I just got a set up for mine 66 c10. Going to install it this weekend.I will post pictures.I went to cpp thay told me a few things to do.
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#7 |
Registered User
Join Date: Aug 2014
Location: Fallbrook CA
Posts: 453
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
Does it have any adjustment? It's supposed to have some "free pedal" when you press the brakes before they engage, I think about ½". Without it, as the fluid gets hot it expands and applies the brakes. I had the same issue with my 58, I think I bought the master/booster from summit, anyhow, it has adjustment in the rod so a few minutes under the truck and problem solved. Also, don't overfill the master, fluid needs room to expand. Should be an easy fix.
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#8 |
Registered User
Join Date: Feb 2016
Location: BACK in Southern Oregon... Don't ask
Posts: 151
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Re: CPP front disc brake swap, brakes sticking and smoking a bit
Thank you guys for your input so far! I have neglected to mention that before I put the dual MC on and did the swap, I was running the stock MC with the power booster... So the shaft adjustment was made for that original modification. After everything you guys have said, it sounds like my first step is going to be to adjust that shaft. I will do that this weekend, and update with details.
And for nail pounder, I think I am running a bit high on the fluid in the reservoirs, both of them are at about 85% to the top. That is probably a bit high. How much do you guys run in your MC's? Thank you! |
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