1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Clunk when clutch released while in Neutral

Thread Tools
 
Search this Thread
 
Old 03-24-07, 05:56 PM
  #1  
No distributor? No thanks

Thread Starter
iTrader: (6)
 
Crit's Avatar
 
Join Date: Oct 2003
Location: Outskirts of Road Atlanta
Posts: 3,438
Likes: 0
Received 6 Likes on 4 Posts
Clunk when clutch released while in Neutral

We are attempting to finish up a motor install here on an 82 12A and have run into this apparently rather large snag. We took the motor out to replace the oil pan gasket and remove broken oil pan bolts, but other than that, motor and tranny weren't touched. Tranny stayed in the car.

So we start it up and it runs fine, but when the clutch is released, there is a nice rhythmic clunking noise. We have no ideas as to what this could be.

Any ideas? I have this nagging feeling the motor is coming at least partially back out though

Thanks
Old 03-24-07, 06:06 PM
  #2  
Old Fart Young at Heart

iTrader: (6)
 
trochoid's Avatar
 
Join Date: Apr 2004
Location: St Joe MO
Posts: 15,145
Likes: 0
Received 7 Likes on 7 Posts
Take the belts off of the e-shaft pulley, then push the clutch pedal in and out. You may need to start it briefly while you do this. Check to see if the e-shaft hub moves in and out.

Other than that, check the tranny to engine bolts. starter mounting bolts, tranny mounting bolts, engine mounts and the slave cylinder bolts.

Is the clunking noise a single event noise or the same noise repeated at an interval?
Old 03-24-07, 06:25 PM
  #3  
No distributor? No thanks

Thread Starter
iTrader: (6)
 
Crit's Avatar
 
Join Date: Oct 2003
Location: Outskirts of Road Atlanta
Posts: 3,438
Likes: 0
Received 6 Likes on 4 Posts
We're idiots. Nevermind. What it ended up being (we weren't really paying attention) is that the rear end was slightly turning (gear oil viscosity we are assuming since the car is on stands), and I have 1 wheel on the back to test fit, so it was not tightened down, so it was the wheel flopping.

Grrr. Oh well, simple fix at least.

Thanks though.
Old 03-25-07, 03:10 PM
  #4  
Old Fart Young at Heart

iTrader: (6)
 
trochoid's Avatar
 
Join Date: Apr 2004
Location: St Joe MO
Posts: 15,145
Likes: 0
Received 7 Likes on 7 Posts
Good deal, cause you would not have liked where my idea was going, lol.
Old 03-25-07, 09:40 PM
  #5  
Rotary Enthusiast

 
cletus's Avatar
 
Join Date: Dec 2001
Location: Atlanta
Posts: 918
Likes: 0
Received 0 Likes on 0 Posts
LOL. We probably wouldn't have .

After further investigation, it was actually the driveshaft weights clipping an exhaust shield because the angle is all messed up since it's off the ground. Either way, not an issue .
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
REX7&Z32TT
New Member RX-7 Technical
5
09-09-15 05:16 AM
Enzo1944
New Member RX-7 Technical
2
09-06-15 08:57 AM



Quick Reply: Clunk when clutch released while in Neutral



All times are GMT -5. The time now is 02:21 PM.