Since I was an morron, any blew the apex seals on rotor # 2 I have to do a rebuild. I have a S4 JDM motor. The car is a 87 base model. A friend was able to source some N/A S4 rotors for free. I have yet to tear the engine down so I am not sure of the condtion of the parts. I inspected the rotors with a inspection camera thru the sparkplug holes. I read that I can use all S4 interal stuff together, and be fine, but I want to make sure. If I need to have it balanced who else does it other then racing beat, I am in FL. Has anyone had used goopy prefromance's housing recondtion service? If so what results have you had?

 

Let me add:
The plan is to use:
-S4 NA rotors
-The good TII rotor housing
-An S4 NA rotor housing (front, since it has no coolant passage) and replace the exhaust sleeve with the one from the toasted TII housing
-The rest of the TII engine (if it's still usable)

The real question is:
Since they're S4 NA rotors (both D-weight code stamped) with the rest of an S4 TII rotating assembly, we're saying it's probably not going to need balancing. At least that's what I've read, and are trying to confirm.

 

If your using:

S4 front counter weight
S4 rotors
S4 rear counter weight or flywheel

You will not need any balancing.

 

Im doing the same thing. One would assume if you had both rotors from the same engine and the front counterweight you should be fine?

 

As long as the front counter weight, rotors, and rear counterweight are the same series (S4, S5), you will not need any balancing.

 

That's what I read by a user who posted that 9 years ago. It was said, but I couldn't find anywhere else where anyone confirmed it.


Question #2 answer:
https://www.rx7club.com/good-busines...w-york-930894/

 

Yea, after I posted I tried searching so I could give you another thread confirming what I was saying, but surprisingly I couldn't find anything.

 

Git er dun..
Yep.
yer ok.
Okie dokie..
Fine.
Bueno Chatchie
Bon monsieur.
My other personalities agree too!

 

Thanks for the help.