P71 SuperDork
July 6, 2010 6:55 p.m.

Had to stop ignoring the Miata's protests if I wanted to keep racing, so I had to order a clutch kit today. I still haven't done that timing belt job either, so I also got a water pump (which means coolant and a thermostat). Have to change the oil while doing the timing belt, so I got some Royal Purple and a K&N filter (I love the nut they put on the end, so much easier!). Grabbed new v-belts too, because they squeal. Got a clutch master and slave and the FM SS clutch line, plus new inner and outer boots for the shifter.


That shopping trip is going to hurt. I still need trans fluid though. Royal Purple SynchroMax or ATF or what? Anything else I'm forgetting "while I'm in there". CAS and o-ring have already been changed, as have the plugs and wires.

Oh, I almost forgot, I also bought Koni STR.T's last week.

Stupid cone addiction!

(Makes life worth living though cause you can't take it ($) with you)

Marty! Dork
July 6, 2010 7:06 p.m.

Redline MT-90 for the trans. Don't forget the turret also. Then you can see how bad your shifter bushings and boots are.

Marty! Dork
July 6, 2010 7:08 p.m.
Marty! wrote: Redline MT-90 for the trans. Don't forget the turret also. Then you can see how bad your shifter bushings and boots are.

Doh! edit: I just saw that you got the boots for the shifter.

Double edit!: Make sure you get the trans fill plug loosened before you loosen and drain the fluid. Many a weekends have been ruined by people who drained the fluid only to find they couldn't get the fill plug loose.

pigeon HalfDork
July 6, 2010 7:21 p.m.

+1 on the Redline MT-90

P71 SuperDork
July 6, 2010 7:31 p.m.

Redline MT90 it is. I'm sure the local speed shop has some. How many bottles do I need?

Am I forgetting anything? Also, I did order the crank holder tool from FM. I know how much of a pain it can be to keep the engine still on timing belt changes, at least on TBird Turbos and 944's.

mistanfo SuperDork
July 7, 2010 12:54 a.m.

You can likely get away with one, you may need two. If you need two, it'll be the smallest amount into the turret. I have wondered in the past, could I just throw some 10W30 in there, since it cannot join the fluid in the tranny itself (at least, not in a five speed). Would save opening the second bottle.

Marty! Dork
July 7, 2010 1:29 a.m.

It takes every bit of two bottles to fill the trans with the turret needing another 4 oz or so. If you want to fill the turret with the same oil as the trans (which personally I would) you will need three bottles.

mistanfo SuperDork
July 7, 2010 8:26 a.m.

Marty- thanks, my bad. The diff takes one bottle, the trans two and a bit. Still curious if you could use plain old 10W30 in the turret though. Other than heat, it sees no stress. Certainly doesn't have to deal with shearing, foaming, etc (unless you row the gears REAL HARD).

ZOO Dork
July 7, 2010 8:34 a.m.

If you do the clutch, be really careful when you re-torque the lower right bellhousing bolt. The torque spec calls for between 47 and 60 foot/lbs. Sadly, I snapped one at less than 50 ft.lbs yesterday on my friend's car. In retrospect, I remember doing the same thing a few years ago on my own car.

P71 SuperDork
July 7, 2010 10:08 a.m.

Thanks for the tip ZOO.

P71 SuperDork
July 8, 2010 7:24 p.m.

Well, the clutch is out. That took all stinking day! There were 3 cross-threaded bolts and the lower exhaust manifold wouldn't come off (though I got it loose, so I was able to move it out of the way).

Turns out the clutch was replaced (probably my Magilla the Guerrilla) and was a very cheap Valeo unit. There was meat left on the disc, but the pressure plate fingers are nearly flat (and they're pressed, not riveted, WTF!??). The flywheel had some bad discoloration so I called it a day so I can have it turned first thing in the morning.

The Flyin Miata box won't make it until Monday, so I'll wait to do the clutch master/slave/line. To be fair, the current slave doesn't leak. I did break something on the back of the head though, looks like a coolant temperature sender? Hopefully I can get one of those tomorrow as well.

If everything goes right I can have the car back together (with the new clutch at least) for the Packwood double regional autocross this weekend. It's 150 miles from the house, so the clutch should be broken in by the time I get there. (The RX-7's clutch only had 40 miles from here to Portland before it was autocrossed! )

Oy, I hurt though. I'm too old for this!

You'll need to log in to post.

Also on Grassroots Motorsports

First Drive: Turbo ND MX-5

18 hours ago in News

We hit the track with Flyin' Miata's latest power adder.

This Weekend at the Mitty: The Ultimate Auto Festival

1 day ago in News

Gates open this Friday for the Classic Motorsports Mitty at Road Atlanta.

ND Miata Turbo Kits Now Available!

1 day ago in News

Add 70 horsepower and 70 ft.-lbs!

What's the Plan, Man?

2 days ago in Articles

Thoughts on our racing plan for the year.

Meet the Rebels Who Started the Cannonball Run

3 days ago in News

Relive those desperado days through movie excerpts, and hear the real facts and wild stories from the legends themselves.

Up for Auction: All of Level 5 Motorsports's Hardware

3 days ago in News

It's a pro race team part out.

Can You Really Live With a Low-Buck Porsche 911?

3 days ago in News

For the past two years, on of our forum regulars has been chronicling his life with a Porsche 996.

Project Turbo Miata: Fire Fighting

4 days ago in Project Cars

We transfer the fire system to our new Miata.

Reader's Ride of the Week: Autocross Abomination

5 days ago in News

Classic British styling with a rotary engine?


1 week ago in Articles

If you’re going to host the search for the ultimate street car, perhaps you should drive one yourself.

Chris Albin’s Flying VW Golf: What Really Happened?

1 week ago in News

What really happened to send Chris Albin's VW Golf flying?

Drive Cars From the Lane Motor Museum Collection

1 week ago in News

Love older, maybe slightly weirder cars? This event is for you.


Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More