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Issue Entering Gears/Transmission Issue
Hey everyone! I just need some help finding a final diagnosis for my car. We'll be taking the transmission apart to inspect everything this weekend but I'd like to get a head start diagnosing my issue.
To begin, this weekend while driving on the highway, I attempted to downshift and I was locked out of 5th gear (tranny would grind if I tried to enter it). I tried to re-enter 6th and i was also locked out. I pulled over and found it nearly impossible to enter any gear unless the car was at veryy low speeds (0-10mph). It would go into gear on rare occasions but essentially, it seems like the input shaft is having a hard time matching the crankshaft speed or the clutch isn't disengaging. On the rare occasions it does enter gear, the transmission makes a rattling noise as it spins up the rpms to match my current speed. As of right now, i believe the pilot bearing has failed but I would love other opinion on the issue. -Symptoms noticed- -The Clutch assembly is not moving side to side(feels tight and secure), the pressure feels like it always has when i depress the clutch pedal. -No visible leaks near the master cylinder and slave or a noticeable drop in fluid reservoir -When the clutch is being re-engaged (letting off the pedal) after i slip the shifter into gear, you can hear a rattling noise from the front of the car. -The clutch is not slipping -Car shifts into gear perfectly when its turned off -There's always been a slight squeaking noise when i depress the clutch pedal (Even before this issue starting) Thanks! Side Note: Yes i have searched nearly everything on the forum on this topic. Please don't reply if you're just going to say "use the seach function n00b".. |
Sounds like a classic case of bad synchros to me.
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Ahh that's what I was hoping not to hear lol. Would the synchros affect a car that's at idle though? Its equally as difficult to put into gear whether its at 900 rpm or 6000 rpm
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Also, here's some additional info that be helpful. The car is at 111k mileage and is still on the oem clutch from the factory lol.
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I mean it could be more than one thing, but generally if the clutch is that bad it will make a lot of noise.
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I'm ruling out the clutch at the moment since there's no slipping and its always made a slight squeaking noise form the throwout bearing. The pilot bearing seems like the main culprit lol. Opinions on the pilot bearing?
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By the way, thanks for responding!
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Hard to say without pulling it apart. but honestly I have never seen a bad pilot bearing in an RX-8, I have seen plenty of destroyed throw out bearings and bent clutch fingers but those car always made a lot of noise to let you know. Only one way to find out though :)
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Haha yeah I guess so! We'll find out this weekend then. I'll post an update once the transmission is out
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So we pulled the transmission today and here's the damage! The throwout bearing had failed and a piece of metal had broken off the clutch plate and was grinding down everything around it including the flywheel lol.
New ACT flywheel and Exedy clutch on the way :) https://cimg2.ibsrv.net/gimg/www.rx8...771f190342.jpg https://cimg3.ibsrv.net/gimg/www.rx8...d4e275cf06.jpg https://cimg5.ibsrv.net/gimg/www.rx8...71c5e8ae45.jpg |
Originally Posted by Madeon
(Post 4668781)
Hey everyone! I just need some help finding a final diagnosis for my car. We'll be taking the transmission apart to inspect everything this weekend but I'd like to get a head start diagnosing my issue.
To begin, this weekend while driving on the highway, I attempted to downshift and I was locked out of 5th gear (tranny would grind if I tried to enter it). I tried to re-enter 6th and i was also locked out. I pulled over and found it nearly impossible to enter any gear unless the car was at veryy low speeds (0-10mph). It would go into gear on rare occasions but essentially, it seems like the input shaft is having a hard time matching the crankshaft speed or the clutch isn't disengaging. On the rare occasions it does enter gear, the transmission makes a rattling noise as it spins up the rpms to match my current speed. As of right now, i believe the pilot bearing has failed but I would love other opinion on the issue. it's one of the issues i've been reading on these forums before i purchased my 8 -Symptoms noticed- -The Clutch assembly is not moving side to side(feels tight and secure), the pressure feels like it always has when i depress the clutch pedal. -No visible leaks near the master cylinder and slave or a noticeable drop in fluid reservoir -When the clutch is being re-engaged (letting off the pedal) after i slip the shifter into gear, you can hear a rattling noise from the front of the car. -The clutch is not slipping -Car shifts into gear perfectly when its turned off -There's always been a slight squeaking noise when i depress the clutch pedal (Even before this issue starting) Thanks! Side Note: Yes i have searched nearly everything on the forum on this topic. Please don't reply if you're just going to say "use the seach function n00b".. One thing i noticed is that if the clutch pedal starts to squeak it could be a sign that the pedal assembly is on its way out. |
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