Part 12: 13B Rotary Engine Rebuild - My 76 Mazda RX-5 Cosmo Restoration
Just as I promised last episode, it is finally time to build the engine!
Part 12 of my RX-5 Cosmo restoration covers the entire process of building
the 6 port 13B Mazda rotary engine. While this engine is a hybrid of GSL-SE
RX-7 and Cosmo parts, the process is the same for any rotary from a 12A to
a 13B NA, 13B turbo, 13B-REW or any
other variant of the 13B. This video shows the whole process of the engine
build, starting from measuring the rotors and covering everything else
including clearancing the side seals, assembling the rotors, complete
assembly the short block, setting the eccentric shaft end play and
installing the front cover and everything underneath it. It's probably the
most complete engine build video outside of what you can buy from the
vendors, and as such, is an hour long. After this one, I'm going back to
videos under 20 minutes. But for now, grab a beverage of your choice, sit
back, and enjoy.
Kako racing on the Dyno.
Best et of 7.25 @185MPH
Siguel racing turbo 2 de calle vs. Pocky Racing
Sabado, Marzo/18/1994 Siguel llega a la Pista de Carolina y establece 10.72
@ 115 en un auto completamente de Calle siendo 8.85(Marca de Falito) el
tiempo mas rapido por un auto Rotativo pa ese Tiempo. Sabado, Marzo/18/1994
Siguel llega a la Pista de Carolina y establece 10.72 @ 115 en un auto
completamente de Calle siendo 8.85(Marca de Falito) el tiempo mas rapido
por un auto Rotativo pa ese Tiempo.videos nostalgia grs
Best Of Rotary Sounds Part 2
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9 CYLINDER BENTLEY ROTARY ENGINE AVRO 504K - LMA RC MODEL AIRCRAFT SHOW - RAF COSFORD - 2013
ian redshaw flew the avro 504 in the video ,the builder and owner andy
johnston kindly gave me these details -
9 cylinder four stroke
33mm bore, cast iron liners of 1mm wall thickness and aluminium finned
347cc, compression ratio 5.6:1
Super unleaded petrol with belts'n'braces 50:1 oil mix. (I use Bel-Ray HR1
fully synthetic ester 2-stroke racing oil.)
Total loss force fed oil system via engine driven oil pump, approx. 30cc
per 10 min flight using Bel-Ray
Rpm range 700-3500
Prop. is 27 ½" diameter x approx. 23" pitch, period scale blade shape
made by EAT propellers, sadly now no longer since the death of Eric Thomas.
Avro 504K details:
¼ scale David Boddington/Nexus plans scaled up to 27% (to give sufficient
cowl clearance for engine)
Wingspan 116", 2.95m
O/A length 100", 2.54m
Covered in Linen Solartex, top surfaces sprayed with Flair Spectrum PC 10
All markings freehand with Humbrol
Two coats Ronseal Diamond Hard Matt varnish brushed on all over (isn't
affected by oil/petrol or nitro glow fuel )
All up weight 23kg
Futaba 12FG TX 2.4Gig
Futaba R-6014 HS RX x 2
SM Services Opto Isolators x 2
Ignition and RX batteries 2000mAhr Eneloop
Power to servos 3,300 NmH subC via opto isolators
Servos are a mix of Hitec metal geared and Futaba, all non-digital
16 ferrite rings to combat the interference from the unshielded vintage
The Avro was designed around the Bentley with the provision for exchanging
it for a Zenoah 62. The Avro's maiden flight was on 31st March 2012 with
the 62 (and 3kg lead up front, the difference in weight between it and the
Bentley) to prove the airframe and it was a great success so a further six
flights were made to complete the CAA tests on that day before making the
swap and further tests.
The Bentley engine build started in August 2004, it's test run was 9th
January 2008 and the maiden flight in the Avro was 6th April 2012.
There are no noticeable effects of gyroscopic precession from the rotating
Bentley affecting the handling unduly, just a slight difference in left and
right which may be due to torque and the coarse-pitch propeller. Twenty-two
flights with Bentley to date (23/07/2013).
Best Of Rotary Sounds
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Major League Racing 6.486@217 MPH (20B Rx8) New World Record!!!!
video by http://www.Grs-Motorsports.com
Team New Generation, DragMania @ Palm Beach International Raceway
Victor "Florito" Flores al volante del Major League, convirtiendose en el
Mazda Rotativo mas rapido del planeta con 6.48 @ 217 MPH.
!!!! Moncho, Wilbert, GRS, Papito & New Generation Team !!!!!!
!!!!! Los mas rapidos del mundo, Desde Lares, Puerto Rico !!!!!!!
Building a 13B-REW
This is how a 13B engine is brought to life from the Mazda factory.
Courtesy of RE4life.com
"Mazda Factory's veteran Engineer, Mr. Uchitani shows how Rotary Engines
are assembled. Amazing that each RE has been built by hand until 2003!"
MAZDA RX7 Rotary Engine, How It Works
MAZDA RX7 Rotary Engine, How It Works
The MAZDA RX7 rotary or Wankel engine is a marvel of engineering. It has
won more races than any other vehicle in its class. Rotary engines develop
a great deal of power for their weight (power to weight ratio). They're
also able to develop high RPM bursts like no other internal combustion
engine. Learn the details of it operation, how the rotor transfers power to
the output shaft, what it the stationary gear set, what is the rotor to
output shaft ration and relationship. Get all the specifics on the rotary
engine's operation here in this video.
Presented using advanced software CG animation technology to help you
understand. Part of our Automotive Technology Rotary Wankel engines and
MAZDA RX7-RX8 series shown here on this channel. Enjoy...
Amazon Printed-Books & Kindle:
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Apple iTunes iPad:
The Ultimate Engine Sound Comparison Compilation (from 1 to 16 cylinder and 2 to 4 rotor)
Activate the annotation button and read the discription!
Sound compilation of almost every common 4 stroke petrol engine type!!!
Tell me which engine basic beat is your favorite one? It's not a question
of loud or quiet, you can make every engine louder or quieter!
R = inline/straight (in row)
VR = inline staggered
W = double V / VR
V = V
B = boxer
Wankel = rotary
1 to 16 = number of cylinders (rotors in Wankel)
Similar sound groups:
~ 3, 6, 12, Wankel2
~ 5, 10
~ 4, V8(flatplane)
My favorites: V8(crossplane), R5, V10
My dislikes: 1, R2, B2, R4, V8(flatplane)
I hate: Diesel (not in this video)
- (1) - BSA Motorcycle
- (R2) - Fiat 500 0.9 TwinAir
- (V2) - Honda VTR 1000 SP
- (B2) - BMW Boxer (custom)
- (Wankel2) - Mazda RX-7 (FD)
- (R3) - Toyota Aygo
- (Wankel3) - Mazda Eunos Cosmo (racing modified 20B engine)
- (R4) - Honda Civic (EG)
- (V4) - Saab 96
- (B4) - Subaru Impreza (Anesis) Sedan
- (Wankel4) - Mazda 787B (former LeMans race car)
- (R5) - Audi Coupé Quattro (B3 / Typ 89)
- (VR5) - VW Passat 2.3 VR5 (B5 / Typ 3B)
- (R6) - BMW 3series (e30)
- (VR6) - VW Golf III VR6 (Typ 1H)
- (V6) - Hyundai Genesis Coupé 3.8
- (B6) - Porsche 911 (G-series)
- (R8) - Nissan 240SX S13 (salt lake race car with R8 engine)
- (W8) - VW Passat W8 (B5 GP / Typ 3BS)
- (V8 crossplane) - Ford Mustang GT (5th generation)
- (V8 flatplane) - Ferrari 458 Italia
- (V10) - BMW M5 (e60)
- (W12) - Bentley Continental GT
- (V12) - BMW 750iL (e38)
- (V12 180°) - Ferrari 512BBi Berlinetta Boxer (not a Boxer engine)
- (W16) - Bugatti Veyron
- (V16) - Cizeta V16T
2 stroke, Diesel, Radial, Jet, Rocket, Turbine, Steam, Electric engines are
I don't own the rights of the videos in this compilation, i just cutted and
mixed them together!
!!! Wow !!! 30000 hits, giant thx :-)