Rotary Engine / Parts Identification Guide

Whizbang · 07-31-2013, 09:29 AM

** pics will appear starting tomorrow **

I am building this guide as a one-stop shop for identifying rotary parts. It is broken down by category (i.e. housings, rotors, front covers, etc) then again by model. There will be an "other" sub-section for non-Mazda wankel information as well.

The order of infomation might also get jossled around as time goes on to make a logically progression.

If anyone can provide missing information that would be excellent! Credit will be given. I just ask that for pictures the original be sent to me and be similiar in format (if able) to the pictures used here.

Thanks to RETed for information!

Contents

1. Rotors
2. Front Plates 1 2 3
3. Intermediate Plates
4. End Plates
5. Housings
6. Front Covers
7. Eccentric Shafts
8. Counterweights
9. Flywheels
10. Seals (Apex, Side)
11. Oil Pans
12. Oil Pumps
13. Complete Engines

Whizbang · 07-31-2013, 09:29 AM

Rotors

10A (1967 - 1971)

Details

Found in the early Cosmo, R100, some RX-3
9.2:1 or 9.4:1 compression ratio {conflicting reports}

12A (1971 - 1973)

Details

Found in twin-dizzy cars
Cast combustion chamber
9.2:1 compressionr ratio

12B (1974 - 1978)

Details

Found in (74-78) RX-2 and (74-78) RX-3, with single dizzy.
Cast combustion chamber

13B "AP" (1974 - 1980)

Details

Found in the Rotary Pickup, RX-3 SP, RX-4 and Cosmo (RX-5 outside U.S.)
Cast combustion chamber
9.2:1 compression ratio

12A (1978-1982)

Details

Cast combustion chamber
9.4:1 compression ratio

12A (1983 - 1985)

Details

Cast combustion chamber
9.4:1 compression ratio

12A Turbo (1982 - 1989)

Details

Cast combustion chamber
8.5:1 compression ratio

13B GSL-SE (1984-1985)

Details

Cast combustion chamber
9.4:1 compression ratio

13B 6PI - Series 4 (1986-1988)

Details

Found in FC3S non-turbo models
Cast combustion chamber
9.4:1 compression ratio
2mm Apex seal

13B Turbo - Series 4 (1986 - 1988)

Details

Found in FC3S turbo models
Cast combustion chamber
8.5:1 compression ratio
2mm Apex seal

13B 6PI - Series 5 (1989 - 1991)

Details

Found in FC3S non-turbo models
Machined combustion chamber
9.7:1 compression Ratio
2mm Apex seal

13B Turbo - Series 5 (1989 - 1991)

Details

Found in FC3S Turbo Models
Machined combustion chamber
9.0:1 compression Ratio
2mm Apex seal

13B-RE (1990 - 1995)

Details

Machined combustion chamber
9.0:1 compression ratio
2mm Apex seal

20B-REW (1990 - 1995)

Details

Machined combustion chamber
9.0:1 compression ratio
2mm Apex seal

13B-REW (1993 - 2002)

Details

Found in all FD3S models
Machined combustion chamber
9.0:1 compression ratio
2mm Apex seal

13B - MSP (2004 - 2012)

Details

Found in all RX-8 models
10.0:1 compression Ratio
1mm Apex seal

Whizbang · 07-31-2013, 09:31 AM

Rotors (cont.)

Whizbang · 07-31-2013, 09:31 AM

Rotors (cont.)

Non-Mazda Rotors

Snowmobile Engine (evanrude?)

Details

Machined combustion chamber

Lawnmower

Details

Really damn small
Side seals only on ONE side of the rotor. This side is the "bottom" as the rotor lays flat.

Whizbang · 07-31-2013, 09:32 AM

Front Plates

Whizbang · 07-31-2013, 09:33 AM

Front Plates (cont.)

Whizbang · 07-31-2013, 09:34 AM

Front Plates (cont.)

Whizbang · 07-31-2013, 09:34 AM

Intermediate Plates

Whizbang · 07-31-2013, 09:35 AM

Intermediate Plates (cont.)

Whizbang · 07-31-2013, 09:36 AM

Intermediate Plates (cont.)

Whizbang · 07-31-2013, 09:38 AM

End Plates

Whizbang · 07-31-2013, 09:38 AM

End Plates (cont.)

Whizbang · 07-31-2013, 09:40 AM

End Plates (cont.)

Whizbang · 07-31-2013, 09:41 AM

Housings

Early 12A housings

There are actually differences between the front and rear housings.

The rear has "TCP" case into the top.

13B-PP Mazda Factory Racing Housings

Details

Available through Mazda Motorsport
"Mazda Motor Company Hiroshima Japan License NSU-Wankel" sticker on spark side / top
"13B Mazda" cast on edge
Unique, somewhat rough casting.
Dual Oil Injector ports

Whizbang · 07-31-2013, 09:43 AM

Housings (cont.)

13B 6PI - Series 4 (1986-1988)

Details

Found in FC3S non-turbo models
"Mazda Motor Company Hiroshima Japan License NSU-Wankel" cast on top
"13B Mazda" cast on edge
"Diffuser" in exhaust sleeve
Single Oil Injector port

07-31-2013, 09:29 AM	#1
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Rotary Engine / Parts Identification Guide pics will appear starting tomorrow I am building this guide as a one-stop shop for identifying rotary parts. It is broken down by category (i.e. housings, rotors, front covers, etc) then again by model. There will be an "other" sub-section for non-Mazda wankel information as well. The order of infomation might also get jossled around as time goes on to make a logically progression. If anyone can provide missing information that would be excellent! Credit will be given. I just ask that for pictures the original be sent to me and be similiar in format (if able) to the pictures used here. Thanks to RETed for information! Contents 1. Rotors 2. Front Plates 1 2 3 3. Intermediate Plates 4. End Plates 5. Housings 6. Front Covers 7. Eccentric Shafts 8. Counterweights 9. Flywheels 10. Seals (Apex, Side) 11. Oil Pans 12. Oil Pumps 13. Complete Engines __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 10:36 AM..

07-31-2013, 09:29 AM	#2
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Rotors 10A (1967 - 1971) Details Found in the early Cosmo, R100, some RX-3 9.2:1 or 9.4:1 compression ratio {conflicting reports} 12A (1971 - 1973) Details Found in twin-dizzy cars Cast combustion chamber 9.2:1 compressionr ratio 12B (1974 - 1978) Details Found in (74-78) RX-2 and (74-78) RX-3, with single dizzy. Cast combustion chamber 13B "AP" (1974 - 1980) Details Found in the Rotary Pickup, RX-3 SP, RX-4 and Cosmo (RX-5 outside U.S.) Cast combustion chamber 9.2:1 compression ratio 12A (1978-1982) Details Cast combustion chamber 9.4:1 compression ratio 12A (1983 - 1985) Details Cast combustion chamber 9.4:1 compression ratio 12A Turbo (1982 - 1989) Details Cast combustion chamber 8.5:1 compression ratio 13B GSL-SE (1984-1985) Details Cast combustion chamber 9.4:1 compression ratio 13B 6PI - Series 4 (1986-1988) Details Found in FC3S non-turbo models Cast combustion chamber 9.4:1 compression ratio 2mm Apex seal 13B Turbo - Series 4 (1986 - 1988) Details Found in FC3S turbo models Cast combustion chamber 8.5:1 compression ratio 2mm Apex seal 13B 6PI - Series 5 (1989 - 1991) Details Found in FC3S non-turbo models Machined combustion chamber 9.7:1 compression Ratio 2mm Apex seal 13B Turbo - Series 5 (1989 - 1991) Details Found in FC3S Turbo Models Machined combustion chamber 9.0:1 compression Ratio 2mm Apex seal 13B-RE (1990 - 1995) Details Machined combustion chamber 9.0:1 compression ratio 2mm Apex seal 20B-REW (1990 - 1995) Details Machined combustion chamber 9.0:1 compression ratio 2mm Apex seal 13B-REW (1993 - 2002) Details Found in all FD3S models Machined combustion chamber 9.0:1 compression ratio 2mm Apex seal 13B - MSP (2004 - 2012) Details Found in all RX-8 models 10.0:1 compression Ratio 1mm Apex seal __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 11:01 AM..

07-31-2013, 09:31 AM	#3
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Rotors (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:36 AM..

07-31-2013, 09:32 AM	#5
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Front Plates __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:39 AM..

07-31-2013, 09:33 AM	#6
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Front Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:39 AM..

07-31-2013, 09:34 AM	#7
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Front Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:40 AM..

07-31-2013, 09:34 AM	#8
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Intermediate Plates __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..

07-31-2013, 09:35 AM	#9
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Intermediate Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..

07-31-2013, 09:36 AM	#10
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	Intermediate Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..

07-31-2013, 09:38 AM	#11
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	End Plates __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..

07-31-2013, 09:38 AM	#12
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	End Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..

07-31-2013, 09:40 AM	#13
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	End Plates (cont.) __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook Last edited by Whizbang; 07-31-2013 at 09:44 AM..