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.
Mazda Rotary burnout covershoot
This issue will be on sale from August 29, 2011. Sam Longley's Mazda RX-2
and Robbie Longley's Mazda 808 skid up for the cover of New Zealand
Performance Car magazine
dx 13b bridgeport 4th gear skid .MOD
my dx 13b bridgeport with 55mm weber side draught that i recently got so
put it on to tune it got it going all good so got a vid before i take it
off for the injection also running s4 na gearbox now , bumpers finally lol,
drop tank n afew other things
yoeys 1979 mazda rx323 12a rotary
12a bridge port, with racing beat ports, 48mm ida, gilmores, s4 gear box,
fresh rebuild 500k's, needs to b Dyno tuned.. pink stickerd due
to mirror tint's f.t.p, take them off and it will fly through vtnz =)
Peripheral port 13B idle
Homebrew 13B at idle; fabricated ports, header, intake manifold, etc,
breathing through a Weber 48 IDA.
Trying some tricks with porting and header design and it only fired up for
the first time about an hour ago, so I have no idea of power output, and
very little desire to make unrealistic guesses.
RX4 coupe 13b bridge port
Got another vid pushing 10 grand on the streets
Bad motha fucka!
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!"
Peripheral Port 12A Rotary Turning Over (Long)
Manually cranking a freshly built 12A peripheral port engine. The engine is
built with 3 window bearings, is doweled and has a shimmed oil pressure
regulator. Ultimately it will run EFI and be turbocharged. Plugs are installed (listen to those