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.
Part 13: Clearing The Engine Bay - My 76 Mazda RX-5 Cosmo Restoration
With the engine built, it seemed logical to focus a bit on where that
engine is to live: under the hood. Episode 13 has me stripping all the
remaining mechanical components out of the engine bay in preparation for it
to be blasted, repaired and painted. This is dirty grunt work, not
particularly stimulating but at least it isn't sheet metal. It's been a
while since my last update and rest assured, what you see here is only a
small fraction of what has been done. I have plenty more footage ready to
edit. Included in this episode: removing all engine bay mechanical
components, removing brake lines and cylinders, labelling and removing
wiring harnesses, removal of the steering gear, orderly disassembly of an
How to rebuild a Rotary Bridge Port engine ~ fullBOOST tech files
FullBoost Tech Files, Ep 1 ~ Rebuild
and Bridgeport of a 13B rotary engine @ Mr Parts.
We have started with a stripped down 1984 Mazda RX7 13BT engine, and will
run through the steps involved in bridge porting the engine, then assembly,
to the start up in its new home, a 1972 Mazda 808 (RX3). [
Get your track gear!
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Part 25: Turbo Manifold Fabrication - My 76 Mazda RX-5 Cosmo Restoration
Episode 25 of my '76 Mazda RX-5 Cosmo restoration is another long one,
covering in its entirety the fabrication of the turbocharger manifold. Suddenly the engine bay
started to look a little cramped when I began to position the GT3076R, so
it took some plumbing to build the required manifold. Constructed out of
1.5" SCH40 304 stainless steel pipe, it was fully TIG welded with an argon
back purge. Yes, this is another long episode because I wanted to show the
manifold fabrication process in glorious detail so that this video would be
a useful resource for anyone wanting to build a custom turbo manifold. So as I say, grab your favourite
adult beverage, sit back, and enjoy. Included in this episode: fabricating
a 13B Exhaust flange, fabbing a merge
collector, positioning a turbo in the
engine bay, measuring, cutting and fitting stainless pipe and els, tacking
in position, setting up a back purge, final welding, port matching, custom
A huge thank you to ATP turbo (
http://www.atpturbo.com ) for helping
out with some of the parts used in this episode.
Best Of Rotary Sounds
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Mazda Rotary Dyno Massive 1664HP
This engine has massive HP, WOW Awsome also on braptv.com Mazda Rotary
Queen Street Racing 4rotor GT60 1664HP
What its like owning a 3 Rotor 20B RX-7
I have one of the most amazing custom RX-7s in the world. I want to share
my experience of owning and driving such a unique car.
I explain where the engine came from, why its so special, and what it does
to a Mazda RX-7
The Zero F**ks Given RX7 - /TUNED
Would you drive a car built by a teenager in his parents driveway with no
safety features whatsoever? We did, and now we'll tell you why this ugly
RX7 is so brilliant.
► Mercedes-AMG Engine Factory
Mercedes-AMG Engine Factory - V8 engine
► If you love cars, you should subscribe now to YouCar's channel:
Go ahead, it's free!
All the Best.
Complete Rotary 13B Rebuild - Preparation & Cleaning ( Part 1)
Do-it-Yourself knowledge to rebuild the popular 13B rotary engine for a
Series 6 Mazda RX7.
Not only will you be able to understand 'in depth' the amazing 13B rotary
engine, but this unique set of videos will unlock the secrets of how to
professionally rebuild your engine without the costs of getting a rotary
workshop to do it - saving you thousands!
This part will assess what needs to be replaced and why, what can be
re-used safely, the new parts, the tools required for the job and cleaning.
If you could please take the time to Subscribe Like and Share my video to
spread the word, I would appreciate it.
I also wanted to start getting some videos up putting a Veilside Fortune
Bodykit on my Rx7 for viewers over the world so any donations would be much
appreciated to get this project up and away. Link is on right hand side on
main channel page or Link is http://www.gofundme.com/8oc9ck
Thanks for your time
Part 14: Oil Pan! Engine Bay! Floor! - My 76 Mazda RX-5 Cosmo Restoration
Part 14 of my '76 RX-5 Cosmo restoration is a collection of three random
tasks. First, I add a -10 AN fitting to the oil pan to serve as a turbo oil drain. Next, I continue stripping down
the engine bay by scraping off the undercoating and then cleaning off the
residue with kerosene. Finally, I begin some of the work on the floor by
patching a small area on the drivers side of the transmission tunnel.
Included in this episode: drilling a turbo oil drain hole in the oil pan, TIG welding a
-10 AN flare to the pan, scraping engine bay undercoating, trying to clean
it with Castrol Super Clean, cleaning the residue with kerosene, finding a
few rust holes, cutting out a rusted area of the transmission tunnel,
fabricating a patch panel, welding it in place, grinding the welds.
The Mazda Rotary Engine Part 1
Educational film by Toyo Kogyo about the Mazda Rotary Engine. Shows how the
Rotary engine works with comparisons to the Piston Engine. Also shows the
Mazda RX500 test vehicle on a banked circuit and the Mazda Cosmo Sport (or
110S). Originates from the late 60's.