06 TJ Booster & MC in my YJ - Page 2 - JeepForum.com

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post #16 of 39 Old 03-11-2011, 10:00 PM
TSEJEEPERS
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Good job!
I do not understand why you did not bleed the brakes at the wheels.
By removing the master cylinder, replacing the lines and portotioning valve there is no way you could not have gotten air in the lines.


93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list.
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post #17 of 39 Old 03-12-2011, 12:52 AM
stoveguy01
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ive got a brand new never been installed or used 95 dual diaphram booster and master cyl I bought. I decided to go hydro boost after buying them anyone interested pm me and lets work out a deal. sorry If I hijacked your thread
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post #18 of 39 Old 03-12-2011, 05:42 AM Thread Starter
glenn-91YJ
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Quote:
Originally Posted by TSEJEEPERS View Post
Good job!
I do not understand why you did not bleed the brakes at the wheels.
By removing the master cylinder, replacing the lines and portotioning valve there is no way you could not have gotten air in the lines.
Point well taken. I plan to. It's just that when I removed the old booster and MC, the proportioning valve which wasn't removed, still had fluid right up to the fittings. I bled the master cylinder completely before putting the lines on. When I put the lines on I let the fluid from the MC push all the air out before putting them on the proportioning valve. I had plenty of paper towels under the proportioning valve to catch the fluid. So essentially I didn't introduce any air into the system. I checked to make sure the brakes weren't spongy and they felt fine. I started the Jeep and pressed the brake pedal hard a few times to make sure the lines I made weren't leaking and took it out around the block to see how they were working.

The Jeep isn't a DD so I will bleed them at the wheels just to make sure.

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post #19 of 39 Old 03-21-2011, 04:17 PM
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if you still have the booster setup stove, pm me.
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post #20 of 39 Old 07-07-2012, 01:11 PM
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From what I do understand guys is that you can use the MC from an XJ. They have the double diaghram setup. Thats why the booster on the 95 is so big. You don't have to look for a YJ one. There are tons of the XJ boosters out there and usually cheaper. I have 2.....can only use one....the one I don't use will be up for grabs in about 2 weeks if not sooner.....
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post #21 of 39 Old 07-07-2012, 09:28 PM
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Quote:
Originally Posted by Mywrangler94 View Post
From what I do understand guys is that you can use the MC from an XJ. They have the double diaghram setup. Thats why the booster on the 95 is so big. You don't have to look for a YJ one. There are tons of the XJ boosters out there and usually cheaper. I have 2.....can only use one....the one I don't use will be up for grabs in about 2 weeks if not sooner.....
Please keep us updated on how this works out and if you run into any problems.

Mike

92YJ with some stuff done to it.
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post #22 of 39 Old 09-26-2012, 08:38 AM
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Definately interested in what you find with the XJ booster.
My reman '95 booster I installed about 2 years ago is taking a dump.
I added some pics from NAPA to show the differences.
How do the push rods attach internally?
Can they be removed and installed in the new booster?
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post #23 of 39 Old 12-31-2012, 07:19 AM
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glenn-91YJ, thanks for the inspiration! I bought a remanned TJ booster and a new master from NAPA today. I did the mods similar to what you did, except I skipped adding a set screw. I added some tack welds to the coupler and shaft, spraying down with water after each tack, to avoid melting something inside. I plan to drill a couple holes and plug weld the coupler, just to make sure it will never move.



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post #24 of 39 Old 01-03-2013, 07:40 AM
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Quote:
Originally Posted by Apollo12227 View Post
The 1995 dual booster for the YJ does the same thing and doesn't need to be modified. Why didn't you go with the 95 setup? Just wondering if there was a specific benefit to a TJ dual booster vs the 95 YJ dual booster. Oops, I just read where you said they were hard to find. My local Autozone had to order one, it took about three days and I used my YJ booster as the core... But used would be a bear to locate.

Either way good mod work! You'll love the dual booster.
Did you go with both the 95 booster and master or the factory master cylinder with the 95 booster?
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post #25 of 39 Old 02-08-2013, 05:01 AM
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Just wanted to say thanks! I used this thread to guide me and I couldn't be happier with the results!

YJ 350TPI NV4500 SOA 8.8 Flat skid

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post #26 of 39 Old 04-05-2013, 12:35 PM
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I just yesterday got an 1996 XJ booster and master, looks the same as all the double boosters and is the newer master, $52 at the local pull-n-pay with warranty. I'll be doing the threaded lengthening too. I was originally thinking of just putting the booster on the firewall, like it was in the XJ. But, the clutch master is there and too close, so I have to keep the OEM YJ booster extender bracket and lengthen the booster rod as above.

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #27 of 39 Old 04-05-2013, 01:02 PM
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Quote:
Originally Posted by JeeperDon View Post
I just yesterday got an 1996 XJ booster and master, looks the same as all the double boosters and is the newer master, $52 at the local pull-n-pay with warranty. I'll be doing the threaded lengthening too. I was originally thinking of just putting the booster on the firewall, like it was in the XJ. But, the clutch master is there and too close, so I have to keep the OEM YJ booster extender bracket and lengthen the booster rod as above.
I reccomend using a a through hole and spring pin to hold the couplinig nut to the booster rod. That way you do not have to weld the on the booster rod and possibly damage the internals of the booster. Since the other end will be cut off you can weld the threaded rod on that all day long.

Edit: here is a pic of what im talking about


YJ 350TPI NV4500 SOA 8.8 Flat skid

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post #28 of 39 Old 04-05-2013, 02:34 PM
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Thanks. I wish I knew exactly what the length is of the rod in my '93, and the hole diameter. I'd like to work on getting the new one ready without pulling the old one out of the Jeep just yet, rather just have the new one ready to go on swap day.

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #29 of 39 Old 04-05-2013, 03:21 PM
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the stock 93 booster?

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post #30 of 39 Old 04-05-2013, 03:45 PM
USMCBuckWild
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Quote:
Originally Posted by stoveguy01 View Post
ive got a brand new never been installed or used 95 dual diaphram booster and master cyl I bought. I decided to go hydro boost after buying them anyone interested pm me and lets work out a deal. sorry If I hijacked your thread
I just picked up most of the parts to go Hydroboost. What parts and how did you do it? Please feel free to PM


Not to hijack. Well, not too much anyways.

91 YJ, 350/700R4/231, 8.8/HPD30 with 3.73s, 6" SOA with 38" TSLs. If I ever see the previous owner again, I am going to curb stomp that meth-head brain dead crackpot.
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