RX7Club.com - Mazda RX7 Forum - Who built this motor? Please help identify.

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- 3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)

- - Who built this motor? Please help identify. (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/who-built-motor-please-help-identify-978551/)

Priceless thread keep the info coming boys..

Quote:

Originally Posted by Banzai-Racing (Post 10883445)

http://mazdatrix.com/pictures/b5-engft.jpg

1= Thrust Plate
4= Bearing Plate

I think you are confusing the two. The thrust plate in the above posted pictures is broken, it is not symetrical and was installed wrong.

No confussion. I did however, call it a "plate" rather than "washer" in my post, my apologies. My discription and points are correct.

-J

^ That was not directed at you, I was answering the question asked of me by FD3s wanted. You were correct in your response.

Quote:

Originally Posted by C. Ludwig (Post 10884543)

Agreed, it's an Atkins build. I've seen those types of markings on their engines as well. Also impossible to place blame since it is a second hand engine.

The way I learned and remember which way the taper on that thrust plate and the CAS drive gear is oriented, is to assume it was put there to make it easier to install the part on to the e-shaft. All the parts slide on to the e-shaft taper first.

The rotors look like they're toasted.

the taper on the thrust bearing is critical as you can see by this thread, the taper on the worm gear(or CAS drive gear) is only used to drive the oil metering pump and isn't critical for an FD, on an FC it messes with the CAS position in the front cover making it a little more difficult to set the base timing for the first startup.

the taper is really there to clear the beveled edge on the eccentric shaft, if the e-shaft had a square cut it would affect the stress on the shaft at that point.