S2000 Under The Hood S2000 Technical and Mechanical discussions.

Locked out of 3rd gear

Thread Tools
 
Old 07-04-2016, 05:15 PM
  #1  

Thread Starter
 
starchland's Avatar
 
Join Date: Sep 2007
Posts: 7,261
Received 89 Likes on 80 Posts
Default Locked out of 3rd gear

I have a problem with my ap1, only ever happens on the track shifting at redline. Won't let me into 3rd gear, never grinds. Just feels like a lockout, if I ease up on the Rpms it will let me in but then I'm losing time.New oem clutch and slave/master. Did it with the old oem clutch as well. Fresh fluids all around - amsoil,Clutch greased and shifter greased, free play minimal. Maybe it's just me? Also I have 75a motor mounts which I suspect...anyone else have an idea?
Old 07-04-2016, 08:39 PM
  #2  

 
Car Analogy's Avatar
 
Join Date: Aug 2012
Posts: 7,844
Likes: 0
Received 1,310 Likes on 990 Posts
Default

Originally Posted by starchland
I have a problem with my ap1, only ever happens on the track shifting at redline. Won't let me into 3rd gear, never grinds. Just feels like a lockout, if I ease up on the Rpms it will let me in but then I'm losing time.New oem clutch and slave/master. Did it with the old oem clutch as well. Fresh fluids all around - amsoil,Clutch greased and shifter greased, free play minimal. Maybe it's just me? Also I have 75a motor mounts which I suspect...anyone else have an idea?
Yeah, I was thinking motor or trand mounts. Things moving around under load. Check those...

Sent from my SM-G920P using IB AutoGroup
Old 07-05-2016, 12:32 AM
  #3  

Thread Starter
 
starchland's Avatar
 
Join Date: Sep 2007
Posts: 7,261
Received 89 Likes on 80 Posts
Default

Btw only locks me out on the upshift, not downshift to 3rd.
Will check the trans and diff mounts (both 75a)maybe they need to be reset/realigned. Not sure if this would have an explanation for it or not mechanically.

Thanks
Old 07-05-2016, 05:26 AM
  #4  

 
windhund116's Avatar
 
Join Date: Sep 2014
Posts: 10,306
Received 1,424 Likes on 954 Posts
Default

What weight of Amsoil tranny oil you using?

Thanks!
Old 07-05-2016, 10:11 AM
  #5  

Thread Starter
 
starchland's Avatar
 
Join Date: Sep 2007
Posts: 7,261
Received 89 Likes on 80 Posts
Default

Amsoil mtf synthetic
Old 07-05-2016, 11:55 AM
  #6  

 
dwb993's Avatar
 
Join Date: Apr 2014
Location: Palm Bay, FL
Posts: 705
Received 122 Likes on 99 Posts
Default

Synchronizers? I recall seeing a post by Billman that said to go through all gears up to redline and back down a few times to get them back in line. He also mentioned to not skip-shift.
Old 07-05-2016, 03:00 PM
  #7  

 
windhund116's Avatar
 
Join Date: Sep 2014
Posts: 10,306
Received 1,424 Likes on 954 Posts
Default

Originally Posted by starchland
Amsoil mtf synthetic
Well, tranny oil seems fine.
Old 07-05-2016, 05:59 PM
  #8  

Thread Starter
 
starchland's Avatar
 
Join Date: Sep 2007
Posts: 7,261
Received 89 Likes on 80 Posts
Default

All fluids have a few hundred km on it only. I feel the issue is mechanical In nature
Old 07-06-2016, 03:45 AM
  #9  
Moderator

 
Billman250's Avatar
 
Join Date: Jul 2002
Location: Long Island, New York
Posts: 22,001
Received 1,244 Likes on 759 Posts
Default

I did have one customer that had a problem getting into third, because the engine/trans were shaking back and forth too much. During fast shifts (he was shifting too fast anyway) he would hit the "side of the gate" so to speak.

I recommended mounts or an Engalls ETD, we have not done the job yet.
Old 07-07-2016, 01:40 PM
  #10  

Thread Starter
 
starchland's Avatar
 
Join Date: Sep 2007
Posts: 7,261
Received 89 Likes on 80 Posts
Default

Maybe I am trying to shift too fast. But I wouldn't expect that to not let me in the gate. Mounts are good, maybe I will try going back to oem. Car has about 160k km. 3rd gear never gives me an issue otherwise. Maybe I will play around with the free play, maybe I have too little, been running this amount of free play for many years though.


Quick Reply: Locked out of 3rd gear



All times are GMT -8. The time now is 06:48 PM.