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Author Topic: shifter rebuild
SAE113 Verified Driver
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Region: Central Florida
Car #: 01 & 99
Year : '92 & '94
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I'ts almost time to install the engine and trans. and i'm getting my order for more parts through mazdaspeed.anyway i'm replacing any rubber parts now so i won't have to later when the car is up and running. what should be replaced in the shifter? looking at the parts diagram there seems to be a few parts that could be replaced as preventative maintenance.

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

CP Verified Driver
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Car #: 7
Year : 1999
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Both shifter boots and the gasket in the bell housing is what I did.

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-Cy
Supported by LTD Racing & Speed Shack - New England's Premier Auto Accessory Store
Rt1 AutoMile - Norwood, MA
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Keith in WA Verified Driver Made Donation to Website
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Region: NWR / Oregon
Car #: 88
Year : 95
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Don't they make a metal replacement for the little plastic cup that fits over the ball on the lower end? I remember someone saying they tend to brake. If they do, that could be some good preventative maintenance while you're at it.

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Keith Novak
(Will work for tires)

Chris Haldeman
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Region: texas
Car #: 71,72
Year : 1990,1999
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does anybody know how to remove the upper part of the shifter so i can install the new small seal?mine seems to be rubber mounted and i cant move it

Eric Barbaric Verified Driver
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Region: Kansas City
Car #: 95
Year : 1991
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They do make a little aluminum piece for that shifter ball end to slide around in. It isn't legal, but who cares.

The original nylon one is pretty tough, but 20 years of service is asking a lot.

I also wanted to replace the small rubber boot, but couldn't figure out how to get at the old one. I'm curious to know how it is done.

Steven Holloway Verified Driver Made Donation to Website
Blue Eyes, Aquarius, hates being squeezed to the grass in SowDiv!

Region: Lonestar
Car #: 97
Year : 91
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The boot will slip off with a little lube and patience.

As far as the dust boot that bolts to the shifter tower, cut it off.
The new one will stretch over the shifter with the knob removed and some lube.

The shifter doesn't come apart, even though it looks like it would.

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If you can't fix it with a hammer, it's got electrical problems.

SAE113 Verified Driver
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Region: Central Florida
Car #: 01 & 99
Year : '92 & '94
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boot r and r http://www.miata.net/garage/shiftboot.html

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

Chris Haldeman
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Region: texas
Car #: 71,72
Year : 1990,1999
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thanks!!

davew Verified Driver Made Donation to Website
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Inside the shift tower you have 3 parts
1-shim, flat piece of steel that protects the soft aluminum
2-plastic bushing
3- wave washer, on old trans the washer is loose from the bushing. Newer trans have the wave washer clipped to the bushing

On the shifter you have:
1-shifter ball bushing, the aluminum version is available, I personally do not like them. They are now legal. Although this may not have been published
2- shifter pin bushing, remove with pick or small screwdriver
3- upper shifter bushing, same as the lower bushing and wave washer
4 boot gasket. Available seperate from the boot. If you are replacing the boot, you get a new one anyways
5-small shift boot. To remove the old boot you simply cut the rubber away from the metal plate, and slide it up the shaft. To install a new one I lube the inside of the boot and slide it down the shaft

About $40 in parts. I do this everytime I rebuild a trans. Anytime the shifter is removed, I inspect and replace parts as needed.

Dave

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Keith in WA Verified Driver Made Donation to Website
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Am I correct that the '99 shifter only requires the gasket, dust boot, and wave washer and that the lever insulator isn't required?

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Keith Novak
(Will work for tires)

SAE113 Verified Driver
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Region: Central Florida
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Year : '92 & '94
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Thanks for all the responses

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

gdeangel
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Region: Detroit
Year : '94
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After spending two weeks trying to purchase all the parts need for a shifter re-build, I thought I'd pass along an almost complete list of part numbers that are needed.

Trying to find the right part numbers has been much harder than it should be, as even the Mazda Motorsport diagrams do not list all the parts needed. Parts are listed in order of assembly from top of the shifter to the bottom.

Upper Rubber Boot: NA01-64-481B
Lower Rubber Boot: M513-17-480A
Upper Wave Washer (w/ 3 tangs): M505-17-482
Large Upper Shift Ball Bushing: R502-17-492
Anti Rotation Bushing (half moon shaped): M501-17-515
Large Lower Shift Ball Bushing: M501-17-481
Lower Wave Washer (w/o tangs): Part Number unknown - different that top wave washer
Shim: 9996-33-330
Lower Shift Cup Bushing: 0398-17-462A

From my experience with a '94 and '96 Miata, neither car needed a shim.

SAE113 Verified Driver
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nice work^^ thanks

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

sky@pitgarage
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I'm trying to rebuilt my shifter too,
My problem is once I put in 3rd or 5th,the gear go in smooth,but once the gear in there's a lot of free play that I can move left and right.it's make me alway miss shift.
Is anyone have EXP that which part I should replace.

Muda Verified Driver Made Donation to Website
ComingToAMirrorNearYou

Region: WDC
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Year : 1991
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All of them, they're cheap.

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Muda Motorsports
"We're all here 'cause we're not all there."

SAE113 Verified Driver
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Region: Central Florida
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Year : '92 & '94
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HELP! I'm finally in the process of doing this, and remember reading somewhere about filling the shifter housing with transmission oil. I can't find where I read it, and I don't know how much. Help.

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

Teamfour Verified Driver Made Donation to Website
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If I remember right it is about three ounces.

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Lee Tilton
1993 Meowta #04
Brimtek Motorsports/ Team Four Racing
Team Four Racing

SAE113 Verified Driver
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Region: Central Florida
Car #: 01 & 99
Year : '92 & '94
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thanks lee.
this thing is fighting me all the way. now the transmission won't go in 5th or reverse. did i screw up the spring and pin thing on the right side, the spring and ball thing in the rear or the spring and big notched pin thing on the left?

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

Keith in WA Verified Driver Made Donation to Website
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Is the little plastic cap still on the end of the shifter and not floating around in the evil fluid in the turret? Don't ask why I ask. [Roll Eyes]

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Keith Novak
(Will work for tires)

SAE113 Verified Driver
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Region: Central Florida
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Year : '92 & '94
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not sure. there is alot of resistance when i try to move shifter to the right of 3-4.

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

Keith in WA Verified Driver Made Donation to Website
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Pull the shifter back out and look for the plastic cap that fits over the bottom ball. Struggling to get it to slide into the turret, it can pop off, fall into the fluid beside (or in my case behind) the linkage and prevent the shifter from moving far enough.

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Keith Novak
(Will work for tires)

SAE113 Verified Driver
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Year : '92 & '94
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thanks keith. i don't think the plastic cap fell off but i'll check.

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

SAE113 Verified Driver
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Year : '92 & '94
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got it fixed thanks for the help. don't know what i did wrong the first time but i backed out the bolt with the spring and ball in the rear of the shifter and it shifted into all gears so i slowly tightened it back up and whalah!she is fixed.

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

meridianracing
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Region: North Carolina
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Year : 1990
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Great list thanks, are these part numbers same for 1990 model?

iambhooper
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I have a replacement "dust cover" (the bit that seal's the shifter to the tower). How am I supposed to get that over the thick part of the shifter? Does it really just slide on (with a bit of lube)?

As for the fluid in the tower, is Redlind MTL ok?

Thanks!
hoop

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hoop
'91 Spec Miata
'90 NA Beater/Track Day car
'06 RSX Type S

Jeff Longo Verified Driver Made Donation to Website
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I sprayed the seal with silicone, then made the "bum, chica, bow, booooow", sound [from the seventy's porn movie], as it miraculously stretched over the shaft.
[Eek!] [burst]

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LTD Racing
Chief Of Inappropriate Comments

Brandon F. Verified Driver
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quote:
Originally posted by Jeff Longo:
I sprayed the seal with silicone, then made the "bum, chica, bow, booooow", sound [from the seventy's porn movie], as it miraculously stretched over the shaft.
[Eek!] [burst]

Uh, Mr. Longo, that would be:
"Brown chicken, brown cow"

[Big Grin]

iambhooper
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I should have followed up... sorry. Actually, I lube'd up the shaft with some teflon grease [blush] and it easily fit the smaller hole [cheerful]

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hoop
'91 Spec Miata
'90 NA Beater/Track Day car
'06 RSX Type S

Sphinx Verified Driver
M. Yusuf Mohamed

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Well, after ordering a bunch of wave washers and bushings, I discovered that I got the wrong stuff for my '99 shifter. Dang it!

There are two designs of the larger plastic bushing. One has one semicircular cut out for the locating pin (early transmissions). But the '99+ require a different bushing that has two semicircular cut outs. And how to get that bushing in and out in one piece is a miracle in and of itself. (ideas? I broke an old I was trying to move from one trans to the other).

The '99 shifters have a different top bushing too (that goes on top of the shifter "ball"). The early cars use the same large bushing one on top, one on bottom of the locator pins. the newer ones use a thinner bushing on the top that has no semicircular cut outs.

Anyone have part numbers for the '99 shifter bushings?

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Sphinx Racing
Atlanta Region
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http://www.layersdesserts.com
Support our racing efforts by shopping at your favorite online merchants at SphinxRacing.com!

SAE113 Verified Driver
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Region: Central Florida
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Year : '92 & '94
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Time to call mazdaspeed

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Steven Elicati
'92 Protege ITA#01
'94 Miata ITA#99

   

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