Hello,

I'm in the middle of trying to reinstall my newly rebuilt sp 12a and i'm having an issue with the instructions that mazdatrix sent along with the lightweight steel flywheel i ordered.

First of all I ordered from mazdatrix and the instructions i received are from racing beat... does this just mean that they just resold a racing beat flywheel?

Second, the kit came with 6 aluminum spacers about a 1/4'' in thickness. According to the instructions i'm supposed to place these spacers between the pressure plate and the flywheel. BUT, when i do this the clutch disk ends up being able to slide around (lots and lots of play) when the bolts are tightened down all the way.

My understanding of clutches and pressure plates are as follows

When the clutch pedal is not engaged the shift fork is not pressing the throw out bearing into the leaf springs in the center of the pressure plate. Therefore when the pedal is out the clutch disk is being clamped onto the flywheel by the pre-load of the bolts holding the pressure plate down and the pressure plate springs.

If this is true then shouldn't the clutch disk be clamped down when I tighten the bolts onto the aluminum spacers???

I've tried switching things around and putting the spacers on the out side of the pressure plate... but as you can see in the pictures the damn pressure plate would then get loose and sloppy when i would engage the clutch!

Can someone please let me know what they have done if they have used this setup using a lightweight steel flywheel and any type of clutch.

My thoughts at the moment are to go out and find some thinner spacers that will allow me to tighten the bolts down to the correct torque and still have a sufficient clamping force on the clutch disk. But then why would the spacers supplied with the kit be too thick?

I believe I have a centerforce 1 setup... if anyone can confirm this from the pictures that would be greatly appreciated.

Thank you

Pete

 

Yep, MT resells many of RB's products. I'm not that familiar with the Centerforce clutches, but I seem to recall the spacers were for the aluminum flywheels, but don't quote that as gospel.

You might check Centerforce's website for further installation instructions.

 

Yea like scott said much of Mazdatrix's listings are Racing beat products. And I have a light steel fly and centerforce clutch on my T2 setup and I didn't get those spacers... Just came with the counterweight, the flywheel and the bolts/washers to attach the two. The bolts holding the pressure plate to the flywheel are the stock ones reused...
You are correct in assuming it should all be held tightly together without the throwout bearing making it otherwise, I'd think about not using those spacers....

 

This appears to be a 215mm vs 225mm issue. Can you take the pressure plate off and measure the friction surface? Also measure the disc diameter for me. And if you get a chance, could you take one picture of the flywheel?

 

looks like it's the wrong pressure plate for that fywheel. You have a pic of the stock flywheel you were using before? Does it have raised notches where the pressure place sat or what is flat?

 

The later RB flywheels are compatible with 215mm or 225mm pressure plates and both disc sizes. Looks like he got the wrong pressure plate bolt set. All he needs to do is use a set of short stock pressure plate bolts from his stock flywheel and everything will be fine.

 

Sean and Jeff... you are most correct... after a little while of scratching our heads... we followed sean's advice of using the stock bolts and the pressure plate compressed the spring the right amount while being torqued down.. it also seated nicely onto the flywheel as well...

I will try and get a picture of everything... in the middle of a marathon weekend right now, trying to get the engine started tonight!!!

Thanks... clutch issue has been averted! for now....

Pete

 

Awesome, good luck getting it going this weekend! Is that the dual friction plate clutch?