Like I said in another thread I'm rebuilding my 13B-RE. This weekend I opened the engine and discovered that the rear rotor has been eaten by an apex seal. I have a s5 TII rotor. I want to know if I can use the good RE rotor with the s5 TII rotor.

Visually they look the same.



Also, I know there is supposed to be a letter on rotors to specify which can be use together. But where is this letter, there is a ton of letters on the rotor.



Another question about the RE. If I change rotor bearings and stationnary gears bearing, which one should I use ? 13BT or 13B-REW ?



Thanks!

they say you can interchange the rotors on a S5TII with a FD engine's rotor, they sare the same size and weight.



BUT! the FD rotor has their stationary gear hardened from the factory.



They also say that FD-REW engines and RE cosmo engines share the same rotors. So i think if you can somehow replace the stationary gear then yes you can use it?

It's basically the same thing.





-Ted

i thought the cosmo and s5 t2 were even the same part number? did someone post that?

Thanks I will use the TII rotor.



And for the bearings, which one should I get for the RE: 13BREW or 13BT ?

https://www.nopistons.com/forums/pub...1047683561.gif funny question comming from the guy that always has the p/n for everything. https://www.nopistons.com/forums/pub...IR#>/smile.png

i dont have the cosmo parts book https://www.nopistons.com/forums/pub..._DIR#>/sad.png and mazdausa only has 1, its the early one too https://www.nopistons.com/forums/pub...O_DIR#>/11.gif

REW has a slightly deeper (and wider?) oil channel in the rotor bearing.

It can be argued that that this is better.





-Ted

the part thats not better is the part where its sized, because they dont list the original size anywhere! just +/- from the original