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#1 |
Registered User
Join Date: Sep 2005
Location: redding,ca.
Posts: 182
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rear brakes locking up
I am having a problem with the rear brakes locking up on my '65. I have the e.c.e front disc conversion with spindles,booster,and everything else. The rears are drums from a '72? for 5 lug wheels. Everything on the front and back is brand new including drums, cylinders, etc. The problem is.... when I first bled them (after I bench bled the m/c) I could not get brake fluid to come out of the rears. When I disconnected the brake lines from the rear, there was fluid to the cylinders. So I hooked them all back up and drove it like that for a little while. The brakes were o.k. but not like I would have expected for the upgrades. So, last weekend I had my daughter help me bleed them again. This time, the rears had fluid coming out of the bleeder valves, but the pedal would only go about half-way to the floor. The fronts bled fine. Now if you even barely tap the brakes going down the road, the rears are locking up. I called e.c.e and we have determined that it is not because the piston in the prop. valve is stuck one way or another. I am going to re-bleed them this weekend when I get some help, but in the meantime, any suggestions? Thanks. -Justin
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#2 |
Registered User
Join Date: Apr 2004
Location: Carmarthen, Wales, UK
Posts: 102
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Re: rear brakes locking up
Try 5 bags of cement in the bed!
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__________________
63 GMC fleetside, 305 V6; over-built, over thirsty and over here! |
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#3 |
Registered User
Join Date: Nov 2005
Location: WV
Posts: 227
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Re: rear brakes locking up
Check and see if the breke adjusters are ran out too far try letting them off a little bit.
Hope this helps. Shane
__________________
1993 K1500 350 5 speed ![]() 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ![]() Member#20327 |
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#4 | |
Registered User
![]() Join Date: Aug 2005
Location: Hillsboro Oregon
Posts: 6,449
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Re: rear brakes locking up
Quote:
May be a dumb question, but is there any way that you may have swapped front/rear channels? I've seen that happen before (don't ask ![]() Last edited by Frizzle Fry; 05-03-2006 at 06:18 PM. |
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#5 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: rear brakes locking up
Like fred says it does happen. Also check that the master is for disc front rear drum and that you have a functioing proportioning valve for Disc/Drum setup. The large reservior is for the disc side.
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#6 |
Registered User
Join Date: Sep 2005
Location: redding,ca.
Posts: 182
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Re: rear brakes locking up
Thank you guys for the replies. I will check and double check everything. I'll try everything suggested except the 5 bags of cement.
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