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

Trouble shifting

Thread Tools
 
Search this Thread
 
Old 09-02-07, 04:03 AM
  #1  
Full Member

Thread Starter
 
Matt_S3_RX7's Avatar
 
Join Date: Feb 2007
Location: australia
Posts: 184
Likes: 0
Received 1 Like on 1 Post
Trouble shifting

Hey guys just a quick question about my transmission (12A series 3, 5 speed manual)

Ive recently started having trouble engaging 2nd whilst shifting, its becoming worse and starting to effect 1st and 3rd?

Any ideas?

Cheers Matt.
Old 09-02-07, 07:44 AM
  #2  
seniorchief


 
Seniorchief's Avatar
 
Join Date: Feb 2001
Location: Indianapolis, IN
Posts: 395
Received 190 Likes on 89 Posts
It "could" be something as simple as low oil level in your gearbox or the shift rods need adjusting. However, it is more likely that the synchro's are going bads. If you haven't done so already download the Factory Service Manual (FSM) in the 1st gen "FAQ's" section. Section 7A in the manual is a good place to start. Good Luck.
Old 09-04-07, 06:46 AM
  #3  
Lives on the Forum

 
Kentetsu's Avatar
 
Join Date: Jun 2004
Location: Grand Rapids Michigan
Posts: 11,359
Received 14 Likes on 11 Posts
Sticky synchros can cause this. Use a 50/50 mixture of the standard recommended gear lube and Auto Tranny Fluid. The ATF still has plenty of lubrication, but also has lots of detergents that can clean the crud out of the synchros. I use this mixture full time.

I've done this with many cars, always with great results. I found this recommendation in "How to hotrod and race your datsun" but it should still be applicable to any Jap tranny. Good luck...
Old 09-04-07, 08:17 AM
  #4  
Rotary Enthusiast

iTrader: (1)
 
speedturn's Avatar
 
Join Date: Jul 2004
Location: Rocket City, Alabama
Posts: 1,035
Likes: 0
Received 2 Likes on 2 Posts
Check your clutch hydraulic fluid level. If it is low, then look for hydraulic leaks in the master and slave cylinders.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
distr0
Canadian Forum
3
10-07-15 08:17 AM
FC3S Timmy
2nd Generation Specific (1986-1992)
16
10-03-15 01:08 AM
Rotafuzz
New Member RX-7 Technical
3
09-30-15 09:55 AM



Quick Reply: Trouble shifting



All times are GMT -5. The time now is 05:17 PM.