Re: Master Cyl Push Rod
[Re: Wolfe440]
#338411
06/05/09 03:02 AM
06/05/09 03:02 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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did you bench bleed your master cylinder?
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Re: Master Cyl Push Rod
[Re: Wolfe440]
#338412
06/05/09 08:47 AM
06/05/09 08:47 AM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Is the brake failure warning lght on? The pressure differential valve in the PV may not be centered, blocking fluid to the front brakes.
Fastest 300
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Re: Master Cyl Push Rod
#338413
06/05/09 09:19 AM
06/05/09 09:19 AM
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Joined: Feb 2007
Posts: 215 New Port Richey, Florida
Wolfe440
OP
enthusiast
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OP
enthusiast
Joined: Feb 2007
Posts: 215
New Port Richey, Florida
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Yes, both of the master cylinders I have tried have been bench bleed. When I bleed the front brakes the fluid is plenty and nothing seems wrong, but stand on the brake pedal and the rears work, but nothing happening with the front unless you pump and pump the pedal and then some braking starts to happen on the front. Acts just like its air, but I have a river of brake fluid from bleeding the front, and no air is showing during bleeding, just pure fluid shooting out both sides in a volume that is normal. I then got a bran new disk brake proportion valve, its also got the secondary valve to equalize pressure to the front brakes. I'm no stranger to mopar brake systems, worked on them plenty. This one stumps me, never had it do this before and every component including lines are bran new. That's why I was wondering if the push rod which is adjustable has a process for checking its right. Not sure what else I have left to try?
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Re: Master Cyl Push Rod
[Re: Wolfe440]
#338415
06/05/09 09:28 AM
06/05/09 09:28 AM
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Joined: Oct 2004
Posts: 601 Clintwood VA
johnedod
mopar
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mopar
Joined: Oct 2004
Posts: 601
Clintwood VA
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Not trying to insult your intelligence or anything but the more I think about your problem are you sure you plumbed the front brakes into the rear resevoir sp? on the master cylinder? If the whole system was new that would be an easy mistake to make. Maybe something to check... Good luck!
Johnedod 68 Road Runner 71 Road Runner 78 Power Wagon
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Re: Master Cyl Push Rod
[Re: rockerbob]
#338418
06/05/09 05:34 PM
06/05/09 05:34 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Did you put the calipers on the correct sides? The bleeder screws will not be at the tops of the caliper resivoirs if you have them reversed. Sounds stupid, but I have seen it done.
Fastest 300
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Re: Master Cyl Push Rod
[Re: Crizila]
#338419
06/05/09 08:41 PM
06/05/09 08:41 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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buy some brass plugs at your parts house & plug the M/C & if it is good(and bled) the pedal will be rock hard & virtually no travel. then take out (1) brass plug & hook up the line to the port next to the firewall & bleed them(your front discs) out & see what you get(for fluid and travel) and if it's the same then take off the 2 lines for the front brakes at the prop valve & plug the 2 ports on the prop valve w brass plugs & this will tell you if the prob is in the prop valve or downstream in the front calipers. EDIT on prop valves w the pin dont you have to pull it out(or in) to bleed the fronts?
Last edited by RapidRobert; 06/05/09 08:48 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Master Cyl Push Rod
[Re: RapidRobert]
#338420
06/06/09 08:20 AM
06/06/09 08:20 AM
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Joined: Jan 2003
Posts: 21,063 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,063
Niles , Ohio
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I agree check the bleeders are on top.You can bleed a gallon of fluid and still not have brakes.Dont ask how I know.Rocky
Chrysler Firepower
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