Hello all
I've a few questions about my disassembled engine can i just set new seals or i need to re-surface the rotor housings? how can i know if i need to install new metal oil control rings?

 

This engine looks very beat. I would suggest you spend for a proper rebuilt engine. The tolerances required ,parts and tools needed, and the learning curve to properly rebuild a Renesis engine (especially in this shape) is not a task to be easily tackled by any novice with these engines.

One of these reputable rebuilders could better examine your rotors, irons, seals etc. and tell you what can be salvaged for a rebuild, and what parts you would need to replace. You will want this rebuild to be top notch and running with proper compression, and not DOA as many DIY rebuilds wind up.

Here is a great reputable rotary rebuilders list compiled by member BigCajun:

Indiana
Banzai Racing Home Page
http://www.banzai-racing.com/


Phoenix, AZ.
https://black-halo-racing.myshopify.com/

S.E. Michigan
https://chipsmotorsports.com/

Moraine, Ohio
https://www.colletti-motorsports.org/

Columbus, OH.
DEFINED AUTOWORKS | Service Repair Upgrades | Performance for Mazda RX7 | RX-7 | RX8

Rogue River, Ore.
Drummond Engines 541.761.5520

Laurel, Indiana
Home
(A member recommends this shop, no mention of rebuilds on the website.)

New Jersey
http://www.irperformance.com/services/


Los Angeles area
http://jandgautomotive.net/

Blackwood, N.J.
http://www.jprimports.com/

Los Angeles
https://lucky7racing.net/

Signal Hill, CA.**
https://mazdatrix.com/index8.htm
A member reports Mazdatrix no longer does rebuilds.

Cresson, TX.
Mazda Race Car Specialists · Motorsport Enterprises Racing
(Apparently, this shop builds racing engines, not ordinary rotary rebuilds, I'll leave it in case someone wants to build a RACE CAR.)

Huntington Beach, CA
NepTune SPEED - Home

Edinburg, Tx.
OJ Imports

Palm Beach, Fla.
Pettit Racing
http://shop.pettitracing.com/


Portland, Ore.
Pineapple Racing
http://www.pineappleracing.com/


Anaheim, CA.**
Racing Beat LLC. -- About Us
** Racing Beat does not rebuild engines, but is a source for those who decide to DIY.

Neosho, MO.
(Southwest MO.)
http://m.therotarydoctor.net/?url=ht...%2enet%2f#2750

Garland, Tx.
https://rotaryperformance.com/

 

Keep in mind that some (many?) rebuilders won't take an engine that has been disassembled as a core so you'll be out whatever core charge they include.

I know that Mazda will if you purchase a reman from them, provided you put it back together with some care (i.e. try to make it look like you didn't intentionally do damage to it).

 

Had my 2005 Rx8 rebuild by Kevin @ rotaryressurection in TN. Highly recommended. Shares detailed pictures during process. Excellent work. If want other part replacement or upgrade he is very reasonable to work with.