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Topic: Problems with Cobra brake swap (Read 1465 times) previous topic - next topic

Re: Problems with Cobra brake swap

Reply #15
Other thing I forgot to mention is to make sure you have the caliper bleeder ports at the highest point on the caliper when installed.  You can flip flop the calipers as they do not care which side they mount on until you go and try to bleed them and realize the port is not at the highest point.  With the port flipped you will NEVER get the air out of the caliper.  You can see the bleeder port here in this picture in the correct position.


83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Re: Problems with Cobra brake swap

Reply #16
So what I think I'm reading here is technically what I have should work, but not be ideal. I think I've just gotten multiple bad masters in a row. Now reading off of what you are saying I'm thinking I should use a 93 master/booster due to ease. I have ordered them and I'm going to see what happens. I don't really know what else to do.
88 Cougar
88 T-Bird
other cars that don't apply to this forum

Re: Problems with Cobra brake swap

Reply #17
I really think you are having issues with the booster MC combo so swapping those should cure the issue.  One other question is what is the model number of the Wilwood proportioning valve you are using?

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Re: Problems with Cobra brake swap

Reply #18
So what I think I'm reading here is technically what I have should work, but not be ideal. I think I've just gotten multiple bad masters in a row. Now reading off of what you are saying I'm thinking I should use a 93 master/booster due to ease. I have ordered them and I'm going to see what happens. I don't really know what else to do.
Absolutely yes on the 93 COBRA (very important) master; and the matching booster is IDEAL, but the SN95 V6 booster is functionally identical, only needing 1 hole elongated in the firewall.  93 Cobra boosters are understandably difficult to get a hold of, while SN95 V6 boosters practically litter the streets.  I'll let you make the call.

Protip: (I'm literally an ASE Master)
Don't pump the brakes when you bleed them.  Doing this beats up the air bubbles in the system and makes them into foam, and foam takes a lot longer to bleed completely out.
First take off the master cap, open the bleeder and leave it alone til the bleeder is dripping. Gravity is your friend. Close the bleeder. Then:
1. open the bleeder, push the pedal down
or
2. push the pedal down, open the bleeder
You'll be done faster, with less wasted fluid, and a better result. 
You can pump gas, you can pump iron, you can even pump up the jam; but don't pump the brake pedal when you're bleeding brakes.

 

Re: Problems with Cobra brake swap

Reply #19
Did this get solved?

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp