Wednesday, November 11, 2020

Flywheel and clutch installation

 This evening after work I knocked out installation of the flywheel, clutch, and starter motor.

Clutch and Flywheel

The clutch and flywheel installation were pretty straight forward. The flywheel is an 11lb unit I sourced on eBay, the clutch is a Flyin’ Miata level 1 NC 5-speed clutch. I opted to upgrade to ARP flywheel and clutch clover bolts for the installation, which I sourced from Massive Speed Systems.

ARP’s installation instructions for their flywheel bolts differ from the factory service manual.
  • Apply the included ARP lubricant to the bottoms surfaces for the flywheel bolt heads. A little bit will go a long way.
  • Apply LocTite 242 to the threads of the flywheel bolts, then install the flywheel and bolts.
  • Following a star pattern, torque the flywheel bolts to the final torque value of 95lb/ft while keeping the engine/crank from rotating.
ARP offered not instructions for the pressure plate bolts however they did include a small sample of red LocTite with the bolt kit.  I have opted to use blue LocTite gel, approximately the same strength as LocTite 242.  All pressure plate bolts were torqued to 38 lb/ft per the Haynes MX-5 workshop manual.

Fresh pilot bearing was installed using a 19mm socket and impact extension.




Starter Motor

Back in July I bought an NC 5=speed starter motor from a Miata breaker in Texas for the whopping sum of $55. It came out of a car with somewhere in the neighborhood of one hundred and twenty thousand miles.  Installation was smooth and easy.  I used socket cap head screws, torqued down to 38lb/ft

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