Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...
Sponsored by:
Sponsored by:

Issues with MiataRoadster Shifter... so much play

Thread Tools
 
Search this Thread
 
Old 04-05-2016, 12:23 AM
  #1  
Elite Member
Thread Starter
iTrader: (15)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 2,041
Total Cats: -117
Default Issues with MiataRoadster Shifter... so much play

all three bolts are tight, shift rod didn't seem bent or damaged...

I have to take this apart again, the play is getting much worse...

Facebook Post
thumpetto007 is offline  
Old 04-05-2016, 12:25 AM
  #2  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

likely the bushing is toast like we discussed
18psi is offline  
Old 04-05-2016, 12:33 AM
  #3  
Elite Member
Thread Starter
iTrader: (15)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Yeah, and Bill wont make them out of brass, I just talked to him today. :(((((

But I'll be taking everything apart, and inspecting them. Expect large pictures of every piece in the shift kit.
thumpetto007 is offline  
Reply
Leave a poscat -1 Leave a negcat
Old 04-05-2016, 12:56 AM
  #4  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
Default

I'd be surprised if a delrin bushing is toast. What do you do to this car lol. Everything is broken.
aidandj is offline  
Old 04-05-2016, 01:08 AM
  #5  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

This kit is univerally loved and adored by pretty much everyone who uses it. Bill doesn't do brass because it can damage the transmission. Delrin won't.

That play is in your transmission. Put a stock shifter in and I bet the play is the same (corrected for the length of the shifter). I've seen worse than that in beat-up 6-speeds, and I've also seen much better. 02+ boxes are generally better, MSM boxes are generally the best.

The suggestion that the play is resulting from the shift kit itself, and not from your transmission or the OEM-dimension lower bushing, is pure bullshit.
Savington is offline  
Old 04-05-2016, 01:14 AM
  #6  
Elite Member
Thread Starter
iTrader: (15)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Dude, i have no idea. Everything I buy goes to **** within a few months. The only problem free mods I've done are the flat top, supermiata radiator, and m tuned coolant reroute.

everything else... Megasquirt, xidas, shifter, THREE clutch slaves (from FM) TWO clutch masters... yeah... lol. It wasn't meant to be.

I haven't even tracked the car yet. To give you an idea, I havent been able to get the RE71Rs higher than 118*F

Literally after the first flat foot shift, the shifter ******* broke lol.
thumpetto007 is offline  
Reply
Leave a poscat -1 Leave a negcat
Old 04-05-2016, 01:18 AM
  #7  
Elite Member
Thread Starter
iTrader: (15)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Ugh. So i have to replace the transmission?

I literally hate how loose the shift is. I am missing dangerous shifts now. Before I shot the video, I did two separate 4-3 shifts, instead of a 4-5.
thumpetto007 is offline  
Old 04-05-2016, 01:23 AM
  #8  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
Default

Depending on where the play is you might be able to replace parts.
aidandj is offline  
Old 04-05-2016, 01:35 AM
  #9  
Elite Member
iTrader: (16)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 9,297
Total Cats: 477
Default

It's your transmission. Do a search for shifting problem threads by me or aidandj, we've both had a similar problem with a particular bolt vibrating loose that caused, for me running a MR shifter, that much play in every gear. aidandj even has a thread about how to take the thing apart to get to that bolt. On mine the particular bolt came loose by the shifter, it holds a cast iron "cup" (that your shifter bushing drops into) onto a machined steel shaft that goes forward into the transmission. That bolt vibrated loose on the cup on both ends on mine.
patsmx5 is offline  
Old 04-05-2016, 01:37 AM
  #10  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
Default

Mine had to come apart because it was broken, but yes I took a ton of pictures with my DSLR and red lctited the bolt. (Which the factory specifics).
aidandj is offline  
Old 04-05-2016, 01:40 AM
  #11  
Elite Member
iTrader: (16)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 9,297
Total Cats: 477
Default

And FWIW after I did the repair mine has held up fine. THough I did clean/loc tight/torque the offending bolt well. When I disassembled both times (each bolt vibrated loose at diff times) the factory bolt was loose, and had minimal thread locker on it.
patsmx5 is offline  
Old 04-05-2016, 01:46 AM
  #12  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Originally Posted by thumpetto007
Literally after the first flat foot shift, the shifter ******* broke lol.
Translation: "I abused the transmission and broke it"
Savington is offline  
Old 04-05-2016, 01:57 AM
  #13  
Elite Member
Thread Starter
iTrader: (15)
 
thumpetto007's Avatar
 
Join Date: Sep 2010
Posts: 2,041
Total Cats: -117
Default

THat really sounds like the bolt vibrated loose. Maybe the lightweight flywheel, combined with 7200rpm vibrations...

that makes sense.

But yeah, my miata likes to get spanked once in awhile. It makes both of us smile.
thumpetto007 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
krissetsfire
Suspension, Brakes, Drivetrain
8
04-04-2016 09:05 PM
thumpetto007
General Miata Chat
8
03-06-2016 01:35 AM
curly
Miata parts for sale/trade
0
03-05-2016 01:44 PM
Ben
General Miata Chat
7
06-15-2007 12:30 PM
jayc72
General Miata Chat
9
05-02-2007 07:40 PM



Quick Reply: Issues with MiataRoadster Shifter... so much play



All times are GMT -4. The time now is 05:25 PM.