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.
First start of rotary vw bug
First start of my cosmo 13b-re TT powered vw bug. It has the microtech
lt10s w/ x4 box. As you can see from the video, there is a bunch of white
smoke. Possible water line into manifold? Any ideas as to that smoke?
UPDATE: The car has been long since fixed. I tore the engine apart and did
a full rebuild. The problem was a stuck side seal and blown omp lines. Its
completely fine fine now and running. The car is still a build and I will
never be done with it. New things are still being added to the car today as