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Jeep Wrangler YJ
YJ General Discussion
Clutch problems
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<blockquote data-quote="machoheadgames" data-source="post: 441919" data-attributes="member: 18789"><p>The 93 or older that you have based on the internal throwout bearing shown in the second pic, means that no, you do not have a fork. That throwout bearing in your pic extends out on it's own under hydraulic pressure. It's really called an internal slave cylinder which means when the hydraulic slave cylinder (part of the TOB) goes bad, you have to pull the transmission to replace it. It is essentially a combined throwout bearing and slave cyllinder. 1994 started the external slave cylinder, which utilized a fork and throwout bearing inside the bell housing, and an external slave cylinder mounted to the exterior of the bellhousing that pushes on the fork. That was a much better and less problematic design. It is common these days to swap internal slaves to external. We haven't been able to buy a good quality replacement internal slave in many years, and pulling the trans every year or two is pretty annoying, so eventually many people swap.</p><p></p><p>What does the clutch locking up in 5th mean? The clutch is not partial to any specific gears. Was the transmission not wanting to come out of 5th? Were you able to get it into other gears and drive those gears? Need more info. I would guess you have a transmission problem but can't really say without knowing more about what happened.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 441919, member: 18789"] The 93 or older that you have based on the internal throwout bearing shown in the second pic, means that no, you do not have a fork. That throwout bearing in your pic extends out on it's own under hydraulic pressure. It's really called an internal slave cylinder which means when the hydraulic slave cylinder (part of the TOB) goes bad, you have to pull the transmission to replace it. It is essentially a combined throwout bearing and slave cyllinder. 1994 started the external slave cylinder, which utilized a fork and throwout bearing inside the bell housing, and an external slave cylinder mounted to the exterior of the bellhousing that pushes on the fork. That was a much better and less problematic design. It is common these days to swap internal slaves to external. We haven't been able to buy a good quality replacement internal slave in many years, and pulling the trans every year or two is pretty annoying, so eventually many people swap. What does the clutch locking up in 5th mean? The clutch is not partial to any specific gears. Was the transmission not wanting to come out of 5th? Were you able to get it into other gears and drive those gears? Need more info. I would guess you have a transmission problem but can't really say without knowing more about what happened. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Clutch problems
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