SENZA PARI

Well, I am about to drop my engine in, and I did a manual swap on the car and I am trying to bolt the pressure plate to the flywheel. my question is, what size and tread are the bolts that go into the flywheel, I tried some I had laying around and they start but are clearly not the right thread. Please let me know, and no I couldnt have saved them, I had and auto before. Thanks

dgeesaman

iTrader: (7)

I would not use anything but OEM bolts for that.

Dave

bajaman

Well...they really don't torque all that tight. I just check the FSM and it said 14 to 19 ft./lbs. One would think a good grade 8 bolt would be perfectly fine, wouldn't it?

dgeesaman

iTrader: (7)

Grade 8 is only a designation for imperial fasteners.

In metric you want Class 10.9. My bigger concern would be if I don't know the exact length of bolt, that there would not be enough thread engagement or too much and the bolt bottoms out without clamping down.

Dave

SENZA PARI

I just want to know the thread type since, it appears to be fine thread and I grabbed a random bolt that will start, but wont thread in, does anyone know the length and thread pitch?

SENZA PARI

where do you guys get oem nuts and bolts?

GARCO MOTORWORKS

The pitch is .1

RLaoFD

iTrader: (6)

Ordering them from your local mazda is probably the easiest way.

dgeesaman

iTrader: (7)

Ray Crowe of Malloy Mazda

or

Mazdacomp if you compete at all with your car.

Copeland

iTrader: (42)

M8x1.0, 16mm long if I remember correctly. Make sure to get 8.8 or 10.9 (preferably 10.9) grade bolts or you'll be pulling that tranny back off before you know it.