no brake pedal pressure after GSL-SE rear end swap (and brakes).. NEED HUGE HELP HERE
05-27-08, 09:58 AM
#26
What do you mean by this? You can use the S/GS master with a disk brake setup, but you would have to remove the check disk from the S/GS master to eliminate the small amount of constant pressure to the rear lines (to overcome the drum springs) that can cause dragging in the rear.
As for the proportioning bypass valve, I don't know. I do know that they are different part numbers and stampings on the steel for the disk and drum versions.
As for the proportioning bypass valve, I don't know. I do know that they are different part numbers and stampings on the steel for the disk and drum versions.
I have done several GS to GSL rear without swapping to GSL mc and pv. No complaint/issues to date. So if everyone wants to argue if they should be matching or not, bring it on as I can back up what I posts
05-27-08, 01:04 PM
#27
Not trying to argue. Just stating that there is differences between the two systems, and the logic behind using the different components to get the best possible performance out of the system.
I also can back up my findings as I have tried both combinations.
I also can back up my findings as I have tried both combinations.
09-18-08, 11:03 AM
#29
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so my problem is i'm kinda forced to use the drug master cylinder and proportioning valve from my SA because i already have the rear brakes connected using a SS line i had made. i would prefer also to not have to run new lines, so all my fittings are a different thread than the disc brake MCs and PP vavles. So, does anyone have a good link on what to remove in the PP valve to get them working properly. Right now they have constant pressure on the rotors.
09-18-08, 01:05 PM
#30
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Well, I'm going to back up Wacky on this topic. I installed a GSL rear on my GS last year, and kept the stock master and pv. I've had no issues, and the braking is awesome.
It sounds like some people have some very good reasons why this should not work properly, but real world results seem to say otherwise...
.
It sounds like some people have some very good reasons why this should not work properly, but real world results seem to say otherwise...
.
09-18-08, 01:13 PM
#31
My car is an S model with gsl rear. Drum brake master and p-valve. My pedal goes down quite a ways and is squishy. The rear brakes drag a little.
Solution?
I'll use a disc brake master and prop valve because I want a firm pedal that starts braking near the top of its travel; that's how my bro's GSL-SE was.
Solution?
I'll use a disc brake master and prop valve because I want a firm pedal that starts braking near the top of its travel; that's how my bro's GSL-SE was.
09-18-08, 06:04 PM
#32
there not
Well, I'm going to back up Wacky on this topic. I installed a GSL rear on my GS last year, and kept the stock master and pv. I've had no issues, and the braking is awesome.
It sounds like some people have some very good reasons why this should not work properly, but real world results seem to say otherwise...
.
It sounds like some people have some very good reasons why this should not work properly, but real world results seem to say otherwise...
.
+1 im not an old school cat, but i found the combination to work really well, and to this date and some odd 10yrs laters of ******* with 7's the combinations of valve this and valve that make no difference...So im with wacky and kentetsu on this one...
09-19-08, 03:19 PM
#33
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as soon as my usb for my phone shows up, i'll put up the pictures of the proportioning valve. my theory on why some people have no problems and some people have big problems with the swap is because the spring in the PV gets weak or maybe the vavles part breaks or something, letting the fluid pass...but the drum brake pv check valve has a pretty decent sized spring in there keeping constant pressure to the caliper, keeping a constant drag...got my pads smokin'...so it makes sense to me why some people have no problems, and others have this problem of brake drag. this is only my thoughts, from my experience with 1 car, 1 swap, 1 time...and just the few different things i've gone through trying to get it workin' properly.
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