throwout bearing? - JeepForum.com
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post #1 of 19 Old 07-21-2010, 11:47 AM Thread Starter
MisfitSeven
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throwout bearing?

lately with the new AX15 i installed last month when it gets hot, it is hard to shift into and out of the gears. yesterday i replaced what i thought had gone out, my clutch master cylinder. i bled the lines and everything, but when i went to put the slave in the bell housing, it seems that the fork is pushed further away than before.

it was acting like i wasnt pressing down on the pedal far enough. i assure you, it went to the floor.

i started it and drove home. i stayed in second gear for 10 miles.

does this sound like my throwout bearing went bad? or the springs on it went bad? or did it pull apart? or something else maybe?
TIA.


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post #2 of 19 Old 07-21-2010, 11:54 AM
AustinCJer
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Quote:
Originally Posted by MisfitSeven View Post
lately with the new AX15 i installed last month when it gets hot, it is hard to shift into and out of the gears. yesterday i replaced what i thought had gone out, my clutch master cylinder. i bled the lines and everything, but when i went to put the slave in the bell housing, it seems that the fork is pushed further away than before.

it was acting like i wasnt pressing down on the pedal far enough. i assure you, it went to the floor.

i started it and drove home. i stayed in second gear for 10 miles.

does this sound like my throwout bearing went bad? or the springs on it went bad? or did it pull apart? or something else maybe?
TIA.
Why did you stay in 2nd gear for 10 miles? Is it not allowing you to even get out of gear without the clutch? I only ask, becasue I can go from 1st gear to 5th without touching the clutch, so if youre having issues getting it out of gear, it may be the AX15.
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post #3 of 19 Old 07-21-2010, 12:18 PM Thread Starter
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yes, it is not letting me out of gear. i am afraid that if i pull it out of second that it wont let me back in to any other gear.

i probably could yank it out of gear. it was getting really hard to shift in and out of gear before. then my clutch pedal went to the floor and i assumed that it was my clutch master because the clutch line was the only thing used i put on here besides the bell housing.

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post #4 of 19 Old 07-21-2010, 12:26 PM
AustinCJer
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Quote:
Originally Posted by MisfitSeven View Post
yes, it is not letting me out of gear. i am afraid that if i pull it out of second that it wont let me back in to any other gear.

i probably could yank it out of gear. it was getting really hard to shift in and out of gear before. then my clutch pedal went to the floor and i assumed that it was my clutch master because the clutch line was the only thing used i put on here besides the bell housing.
I dont want to try to give advice, I am not knowledgeable in transmissions and clutchs... I just know with my transmission, im able to get in and out of gear without the clutch, but I dont know if the clutch or throwout bearing being bad would effect getting into and out of gear.

Good Luck.
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post #5 of 19 Old 07-21-2010, 12:46 PM
Hokie76
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I had a similar problem before I replaced all of my hydraulics. Mine will still act up on my when I'm driving in traffic on a hot day, but other than that it's smooth sailing. I'm going to try some new gear oil and see if that helps at all

I would try and replace the whole system, as it is easily swapped out and cheap, and then if that doesn't fix it look at some more serious causes
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post #6 of 19 Old 07-21-2010, 12:53 PM
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Quote:
Originally Posted by MisfitSeven View Post
lately with the new AX15 i installed last month when it gets hot, it is hard to shift into and out of the gears. yesterday i replaced what i thought had gone out, my clutch master cylinder. i bled the lines and everything, but when i went to put the slave in the bell housing, it seems that the fork is pushed further away than before.

it was acting like i wasnt pressing down on the pedal far enough. i assure you, it went to the floor.

i started it and drove home. i stayed in second gear for 10 miles.

does this sound like my throwout bearing went bad? or the springs on it went bad? or did it pull apart? or something else maybe?
TIA.
When you say lately, has it been doing this since you did the tranny swap? The reason I ask is I had a very similar issue when I first bought my used '99 TJ. The problem ended up being that the "fork" was installed 180 degrees off. Meaning what should have been the right side was flipped to the left side. Is there a chance you mistakingly did this? Did you do the work yourself or did you have someone else do it for you? I would take a close look at this, it is not hard to do if your not paying attention. The distance from one end of the fork to the center of the throw out bearing is different than to other side. Does that make sense?

Good Luck!

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post #7 of 19 Old 07-21-2010, 01:02 PM Thread Starter
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i did the work myself.

along with the bell housing, i got the fork with the spring clip on it. i put the spring clip onto a new fork.

if this was my problem, why would it work for the last month just fine? i remember having a hard time installing the slave the first time because the fork was closer. now it seems to be pushed further away.

i wont rule out that i might have installed it incorrectly. is this installed correctly?

not mine, just want to be sure.

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post #8 of 19 Old 07-21-2010, 01:31 PM
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Honestly, It's been a while and I couldn't say for certain. I will look to see if I took some before and after pictures and try to verify for you.

I will say this, your symtoms are exactly what I was seeing. The jeep would be fine on short trips (5-10 miles) anything longer and it just would not go into any gear. I changed tranny fliud and slave cylinder and it didn't do solve anything. I bought the LUK clutch kit and during the process I discovered the "fork" problem. It has shifted like a champ since then.

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post #9 of 19 Old 07-21-2010, 02:12 PM Thread Starter
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i ride my clutch for 4 hours a day. this is my work vehicle.

and lately since it has been getting really hot outside, later in the day it has been giving me trouble shifting in and out of gear.

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post #10 of 19 Old 07-21-2010, 02:17 PM
BulldogTJ98
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This may sound stupid and simple but make sure at the slave cylinder rod that pushes the clutch fork is seated on the fork/cylinder. Because it is possible to miss the indention and not see it because of the rubber boot. Either that or a shift fork is stuck if you cant get it out of gear.

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post #11 of 19 Old 07-21-2010, 02:21 PM Thread Starter
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i did make sure the slave rod was in the indention in the shift fork.

the shift fork is stuck.
Quote:
Originally Posted by MisfitSeven View Post
it seems that the fork is pushed further away than before.

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post #12 of 19 Old 07-21-2010, 02:25 PM
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If the fork is stuck looks like you need to start pulling bellhousing bolts.

My Build Thread: http://www.jeepforum.com/forum/showthread.php?t=587503

'98 TJ 4.0L, AX-15 5spd, NP231, RE 4.5 rear, 3"&.75" BB front, JKS discos, 33x12.50 KM2s on Rock Crawlers, 3.73s, Dana30 front, Dana 44 rear, JB Conversions SS SYE, JKS HD Tierod, Warn 8274 Winch, Front Stinger and Rear stinger w/ tire carrier, Rokmen Corners, Aluminum Radiator, LED tailights, Rock Lights, KCs, K&N airfilter, Optima Redtop, Cobra CB and a Sony soundbar
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post #13 of 19 Old 07-21-2010, 02:31 PM
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the shift fork is stuck.[/QUOTE]

Yet another reason to check what I mentioned above. If the fork is rotated 180 degrees the left side will slightly rub the bellhousing.

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post #14 of 19 Old 07-21-2010, 02:34 PM
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TO bearing could be stuck on the tranny input shaft or it could be busted, anything is possible at this point but you have no choice but to remove the tranny again.
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post #15 of 19 Old 07-21-2010, 08:01 PM Thread Starter
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bump for the night crowd.

is the shift fork installed correctly in the pic i posted in post #7?
thanks again for all the replies, guys.

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