Does anybody have an exploded view of a '91 combo valve? The rear brakes are dragging after my disc swap and I want to remove the residual pressure valve. My shop manual set does not have any info on the combo valve. TIA. 
CK5
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Combo Valve
- Thread starter BGKYK5
- Start date
If you go to the Product Review section, there is a fantastic article under the Az-Kicking Disc Brake Conversion. Towards the end, there is an explaination of the CV. Hope you find it helpfull. It's quite informative!
Thanks, that helps a lot. If anybody else is interested, I'll save you a couple clicks.
http://coloradok5.com/atrondiskbrakes.shtml
http://coloradok5.com/atrondiskbrakes.shtml
Sorry about all those extra clicks! I still don't know how to do all that stuff.
Glad it helped!
Glad it helped!
Jeez I wish we could figure out exactly why there are sometimes brake problems after disk swaps. 
Residual valve is in every drum/disk prop valve, yet not everyone has problems leaving it in place.
Residual valve is in every drum/disk prop valve, yet not everyone has problems leaving it in place.
Sorry about all those extra clicks! I still don't know how to do all that stuff.
No problem UDY2554, I'm a big boy I can click with the best of them.
Upon closer inspection, the rear brakes are in fact, NOT dragging. 
They do work real good though. I'll have to disable the ABS and see how good.
Good info for future reference though.
They do work real good though. I'll have to disable the ABS and see how good.
Good info for future reference though.
Jeez I wish we could figure out exactly why there are sometimes brake problems after disk swaps.
Residual valve is in every drum/disk prop valve, yet not everyone has problems leaving it in place.
it could be caused by difference valves being that there were many factory settings based on brake size etc. Also the amoutn of wear im sure plays a part, if its really old it may not work as well, i am working on running the equations for a k-5 brake system for my disk brake setup ill post up when i finish the equations
I should check to see if GM ran a bunch of different combination valves. My gut tells me they didn't use as many as you'd think, based on GVW or weight bias.
This based solely on the fact that GM used disk/drum combination valves on some disk/disk cars (IIRC the last gen RWD Impala's), with the expected result. If GM didn't care that much in that extreme of a case, I bet they didn't for GVW or bias either.
This based solely on the fact that GM used disk/drum combination valves on some disk/disk cars (IIRC the last gen RWD Impala's), with the expected result. If GM didn't care that much in that extreme of a case, I bet they didn't for GVW or bias either.
I'd be interestred to see the result.
