Clutch Master Cylinder and Rotated Tach
I replaced the clutch master cylinder today.
It went smoothly until it came time to bleed the system. I had asked Arti earlier today if she could help me out, to which she agreed. However, when the master cylinder was installed and ready to be bled, Arti was sleeping. Just pumping on the pedal didn’t do anything, so I needed to figure out a way to simulate a partner pumping the pedal. The solution came in the form of a Shop-Vac hose extension — a rigid piece of 3″ diameter pipe. I would put it between the driver’s seat and clutch pedal to keep the pedal depressed. I attached a 2 foot length of vinyl tubing to the clutch slave bleeder valve, and sucked the fluid almost to the end of the tube. I put the tube into a bottle of old brake fluid, and proceeded to pump the pedal with the pipe, locking it into place with the driver’s seat. It was slow, but worked well!
One thing I’ve seen in other Spec Miatas is that they turned the tach so that the redline was when the needle was pointed straight up in the 12 o’clock position. With the instrument cluster out of the car, I thought I’d try my hand at making this change. After a few failed ideas, I finally figured out how to do this.
See this page for step-by-step instructions on how to rotate your tach.
September 13th, 2007 at 3:46 pm
It looks cool but is there any other reason for doing this?
September 13th, 2007 at 7:50 pm
Nope! Only reason is to have the needle point straight up.