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Old 03-17-2012, 01:40 PM   #1
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Transmission guru's, I've got a question for ya

Well, I put a new clutch in last night and this morning, it was exciting none the less...manhandling the tranny underneath it. Had a few snafu's but its in and running...but i am still having issues that i thought the clutch would fix.

I diagnosis it as a throw out bearing, metallic squeal while in gear and driving, disappearing when the clutch is in. The old throw out was definitely bad, noticeable squeal when you spin it in your hand when it was out.

My symptoms are: while driving (only able to be heard at slower speeds, but i am sure it is there all the time, just not noticeable over road and engine noise) there is a metallic light raspy squeal. It will go away in two situations, one is press in the clutch and you will here it spin to a stop, or shift into neutral with out the clutch and it stops.

This tells me two things, its not clutch specific because to go into N with out the clutch means I haven't disturbed the flywheel/pressure plate/throw out bearing geometry. It has to be a rotating assembly inside the tranny that while in gear rotates, but once in N does not, even if the driveshaft is rotating. I dont know trannys enough to know what parts are spinning, in every gear (even if not under load) until you slide into N. What ever it is that rotates would normally spin to a stop quietly (like a good bearing, no noise situation) BUT it also occurs when the clutch disengages the tranny from the engine.

i am stumped, and am figuring what ever it is its a tranny rebuild job, which is out of my realm of expertise. I'd just like to know what it might be so I can determine how pertinent it is to do.

SO...what spins in the tranny until neutral or clutch is engaged. Does the input shaft stay under load and spin from the driveshaft even after the clutch is in? I noticed some play in the input shaft, maybe a 1/16th - 3/32nds, but thought that might be normal since the pilot bearing would solid that up.

Its a AX5, in a 1999 SE that I just did a pilot bearing, diaphragm and pressure plate, and throw out bearing replacement in.

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Old 03-25-2012, 11:07 AM   #2
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I had to rebuild the AX5 transmission in my '92 Wrangler this past spring. It was grinding bad going into 3rd gear and sometimes 2nd gear. I tried the syncomesh fluid route and it didnt help. Next was to replace the synchros. If you need to go that route, I tried to document some information on the website below. It has some videos and AX5 teardown manuals that helped me do the whole thing myself. The procedure for the AX5 and AX15 are almost identical so you can still use the information if you have an AX15. Hope it helps somebody. Let me know if you have any questions.

1992 Jeep Wrangler | | diyStew - Adventures in DIY ProjectsdiyStew – Adventures in DIY Projects

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Old 03-25-2012, 11:12 AM   #3
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Quote:
Originally Posted by webweyes View Post
I had to rebuild the AX5 transmission in my '92 Wrangler this past spring. It was grinding bad going into 3rd gear and sometimes 2nd gear. I tried the syncomesh fluid route and it didnt help. Next was to replace the synchros. If you need to go that route, I tried to document some information on the website below. It has some videos and AX5 teardown manuals that helped me do the whole thing myself. The procedure for the AX5 and AX15 are almost identical so you can still use the information if you have an AX15. Hope it helps somebody. Let me know if you have any questions.

1992 Jeep Wrangler | | diyStew - Adventures in DIY ProjectsdiyStew – Adventures in DIY Projects
i appreciate it...there a AX-5 i can get cheap, was thinking of rebuilding it as a spare if this one doesn't make it. Never done it before but figured what the heck, its a spare
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