YJ braking upgrade will not bleed rears - Page 2 - JeepForum.com

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post #16 of 24 Old 11-02-2013, 07:26 PM
jrussblues
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That's the piece, I've only ever seen them in an adjustable form similar to the pic, both factory and aftermarket.

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post #17 of 24 Old 11-05-2013, 04:06 PM Thread Starter
jeep_boy02
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OK, I haven't got a chance to work on it any more between work hours and the weather but I was thinking... if that adjustment between the MC and booster was the culprit, when I bled the MC wouldn't there not have been bubbles and essentially not have bled the rear portion of the MC in the first place?

Note: I bled the MC installed in the jeep using the pedal and air was purged from both reservoirs and am trying to use a vacuum bleeder so the piston not activating the rear shouldn't be the issue... Correct?
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post #18 of 24 Old 11-05-2013, 08:49 PM
CrankyD
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Not all boosters have the adjustable pushrod on the MC side. I have a 95 YJ single diaphragm that doesn't have it. The Cj's i'm pretty sure don't have it either.

I'd start with the wheel cylinders, the auto parts stores haven't sold decent wheel cylinders for years now.
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post #19 of 24 Old 11-11-2013, 09:30 PM
jrussblues
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Quote:
Originally Posted by CrankyD
Not all boosters have the adjustable pushrod on the MC side. I have a 95 YJ single diaphragm that doesn't have it. The Cj's i'm pretty sure don't have it either. I'd start with the wheel cylinders, the auto parts stores haven't sold decent wheel cylinders for years now.
As a tip...break the fitting going in to the wheel cylinder and see if you get pressure from the open line on a pump. This could save the headache of tearing down your brakes.

As for the vacuum pump question...does it matter if you can bleed them with a vacuum if when you press the pedal they get no pressure?
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post #20 of 24 Old 11-17-2013, 01:59 PM Thread Starter
jeep_boy02
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So I finally got some time free today after being able not to go to work since I had seizure yesterday... scary stuff for the ones involved and I dont remember much but all is well now.
Anyways, new wheel cylinders did the trick but now the brakes are touchy as hell... if I dont ease into them the thing nose dives and throws anything in the seats forward and my brake lights are constantly on now too. Is this just such a better system and I'll just have to get used to it?... what about the light issue? Just an adjustment on the pedal and rod?

80 CJ7-304/T176/D300 HEI hdrs-WT D30/D44 4.56s, lockright/spool-SOA YJs W/RE AAL-35 MTRs beadlocks
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post #21 of 24 Old 11-17-2013, 03:31 PM
Spieg8
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The brake light thing is probably due to the pedal not returning enough to depress the brake switch. Can you pull the brake pedal up with your toe and get the light to go off? If not, try lengthening the rod (assuming you have an adjustable rod to the pedal or between the BP and the mounting bracket). This could also be what is causing the touchy brakes (not allowing enough pedal travel/slack).
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post #22 of 24 Old 11-19-2013, 10:22 AM Thread Starter
jeep_boy02
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No play in the pedal. Did find a switch of sone sorts hanging down above the column... assuming its the brake light contact and also assuming that it operates off of being relased to turn on lights rather than depressed.

80 CJ7-304/T176/D300 HEI hdrs-WT D30/D44 4.56s, lockright/spool-SOA YJs W/RE AAL-35 MTRs beadlocks
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post #23 of 24 Old 11-19-2013, 11:22 AM
Spieg8
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Quote:
Originally Posted by jeep_boy02 View Post
No play in the pedal. Did find a switch of sone sorts hanging down above the column... assuming its the brake light contact and also assuming that it operates off of being relased to turn on lights rather than depressed.
Ooh the switch fell out of the bracket? Sorry to hear that.. it's a bi~@# to work on that thing (you get to stand on your head for a while). My back hurts just thinking about it.

You are correct that the switch activates the brake lights when the button is released. There should be a nut laying somewhere that was used to secure the switch to the bracket. You have to hold the switch in the hole of the bracket with one hand and tighten the nut with your other hand.
(fun fun)

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post #24 of 24 Old 12-03-2013, 10:36 AM Thread Starter
jeep_boy02
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Lights fixed... pedal still feels so odd but I have great brakes. Guess I just got to get used to it. Some one did mention a funky pedal feel. Now just to find better suited suspension

80 CJ7-304/T176/D300 HEI hdrs-WT D30/D44 4.56s, lockright/spool-SOA YJs W/RE AAL-35 MTRs beadlocks
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