this is my first rotary teardown, but I have done a few chevy small blocks.

my '88 finally stopped running (after running poor for a while)
I got the engine out and apart.
housings look good, but the rotors have surface rust.
I can see 3 points where water was passing through the gaskets.

there are lots of rubuild/gasket kits out there, which one is the one to get??
how do I know which parts need replaced??
or do you just always get the $1000 kit and replace everything??

are my rusted rotors salvagable??
what would be best to remove the rust??

if not, what does it take to put the '89-'92 rotors in this engine??
and where to get them??

 

Pics? Rust on the rotors shouldn't really be a problem, but it depends on where and how much.

How do the coolant passages look? Are they rusted? If so, where and how bad? Is there obvious pitting?

In addition to one of those rebuild kits, I'd personally replace the rotor bearing and main bearings in the stationery gears. They have to be pressed in and out, but the bearings themselves aren't very expensive.

 

Do it right and replace them all.

 

the coolant passages have the white deposits you find in the coolant passages of any aging car.

will try to get pics of the rotors today.

 

Heres a quick list i did for mine

-N351-11-C00C (6 EACH) APEX SEAL RX-7 (2 piece design)
-N326-11-C04A (6 EACH) INNER APEX SPRING 86-92 ALL
-N326-11-C06C (6 EACH) OUTER APEX SPRING 86-92 ALL
-N326-11-C20A (12 EACH) CORNER SEAL AND PLUG 86-92 13B
-NF01-11-C240 (12 EACH) SPRING CORNER SEAL (1993-1995) new design
-N3Y1-11-C11 (12 EACH) SIDE SEAL 86-95 RX-7 ALL
-N326-11-C17 (12 EACH) SIDE SEAL SPRINGS 86-95 RX-7
-0820-11-341 (4 EACH) O- RING, OIL SEAL INNER
-8341-11-343 (4 EACH) O-RING OIL SEAL OUTER

-N225-11-351 (2 EACH) SPRING Front-IN (OIL SEAL) 84 +
-1011-11-353A (2 EACH) SPRING, Front-OUT (OIL SEAL) 71+
-N225-11-361 (2 EACH) SPRING, Rear - IN (OIL SEAL) 84+13B
-1011-11-363A (2 EACH) SPRING, Rear - OUT (OIL SEAL) 71+

-0820-10-605 (1 EACH) OIL SEAL FRONT COVER 71-92
-1668-10-556A (1 EACH) OIL SEAL REAR STA GEAR ALL

-8DF1-10-271 (1 EACH) 86-88 N/A GASKET & O-RING KIT


- N326-11-D030 (1 EACH) Pilot Bearing
-1881-11-4040 (1 EACH) Pilot Bearing Seal

- N326-14-1510 86-95 (1 EACH) Oil Pump Chain

- N318-13-111D (1 EACH) Manifold to Engine Gasket (turbo)
- 8527-13-113 (2 EACH) Manifold water “O’’ rings
- N318- 13-112A (1 EACH) Between Upper and Lower Manifold Gasket (turbo)