Part 2: My 76 Mazda RX-5 Cosmo Restoration - Engine Removal

This is the 2nd set in a series of videos covering the restomodding of my 1976 Mazda Cosmo. In this video, the engine is stripped down and removed from the car along with the transmission. There isn't really anything wrong with this 4 port 13B, but the car needs a little more power (stock is about 120HP) so I will be using this engine to build a 6 port 13B turbo using the Cosmo housings and GSL-SE end plates.

Category:

Autos & Vehicles

Tags:

• mazda
• cosmo
• rx-5
• rx5
• restoration
• modding
• engine
• removal
• teardown
• rotary
• wankel
• rx-7
• rx7
• custom
• rx2
• rx3
• rx4
• 13B
• overhaul

[sacheus]

whats the air pump for/was for?

[aaroncake]

@sacheus It's part of the factory emissions system. Air is directed to the exhaust ports, thermal reactor manifold, heat exchanger and/or exhaust cooling jacket via a series of solenoid controlled valves as dictated by the emissions computer. Worked very well in the '70s to easily meet the new emissions regulations. Now the pump is not needed as the car will be fitted with fuel injection and a modern high flow catalytic converter.

[thebigdille]

@aaroncake Exactly, it was just something Mazda came up with, being successful with the small size of the rotary. The thermal reactor was an alternative to the current catalytic converter, the air is pumped into the reactor to keep the combustion process present and further the reduction of unwanted emissions.

[aaroncake]

@thebigdille And thermal reactor rotarys had such a unique smell. The system works quite well, and in the mid 2000s I had an all stock '78 RX-7 where the thermal reactor system still worked perfectly. Even passed emissions. Just too bad that the whole system was massively heavy and very restrictive.

[eversor111]

Hey, It's been a while now. Hows the restoration coming?

[aaroncake]

@eversor111 Have you watched part 3 to part 15?

[CarManiac82]

Hey thanks a lot for the videos its really entertaining and always fun to watch for me how person puts a lot of work and heart into a project like this. an beautiful car coming back to life little by little. looks like a have lots of parts to watch hehe :o) Greetings from Chicago nice work man...

[eversor111]

@aaroncake omg, no,.. I am subscribed, but never got notified of the new videos! I know what I'm doing tonite :) thanks!

[catfisher10100]

You know how fun it would be to jst strip down a rotary engine lol

[aaroncake]

@brianbili I think I got what you are saying via Google translate. :-) I agree, it costs quite a lot to restore a car but luckily for me, at this point my biggest investment is time. A lot of people have come forward with rare parts at reasonable prices that I thought I would have to pay huge sums for or that I never thought I would find. I'll be posting the next video very soon.