Spark Plugs, Fuel Pump Mount

Yesterday I went ahead and mounted the new fuel pump to the skid plate, as well as installed new spark plugs. I also finished removing the fuel line (cut it in half with a pipe cutter). Unfortunately, I learned that you have to leave the cheap looking metal rings on the spark plugs, they're gaskets that prevent oil from leaking out around them! I think I threw them away. Oh well, I found a whole box of Nippon-densos in the closet so I will just put those in instead of the autolites, and I'll include new video of that preparation and installation. Also, the next video will probably be of my dad and I turning the engine on Sunday! Yes folks, without a fuel pump, regulator or tank, it is possible. Since the Nikki carb only takes 1.5 psi, we should be able to get some fuel in there by means of gravity. We'll put a jerry can up on a ladder and run some fuel line down to the carb, and fire up that rotary. I can't wait to hear it hum. Music to my ears....

The fuel line after I cut it in half with a pipe cutter.The fuel line after I removed it. Spark plug kit. The can has Anti-seize lubricant in it, basically etch-a-sketch crap mixed w/oil. The socket is a 13/16 craftsman spark plug socket, 1/2" drive. TURN COUNTERCLOCKWISE TO LOOSEN!!

Mazda spark plug location. By the way, I removed and installed them one at a time so as not to confuse myself about the distributor cables. See, some things about an RX7 are just easier to deal with, such as being able to reach all of the spark plugs, whereas on a traditional small block, for example, in our '84 camaro, I think the rear right hand plug is still the one from the factory!

I tightened the plugs with my fingers. If you feel any resistance, stop right away! The rotor housing is made of aluminum and is extremely delicate. Tighten too much, you can strip the threads. Tighten too little, and as you run the engine, vibrations will loosen the plug and possibly send it shooting out of the housing along with the threads, ie, disaster will strike. You're supposed to tighten them with a torque wrench. I don't know how to use one, but in my next videos, putting in the nippon-densos, I'll demonstrate use of the torque wrench and meet factory specs.

My homemade fuel pump mounting. I drilled the holes with a plain old drill, using WD-40 as lube. Apparently, according to my dad, the machinist/welder, that's not the best thing to use (I was alone). It can catch fire. Also, this design did not fit under the car. I will have to work something else out. Well, I learned something anyway!

Mazda Video

A short video, just a walkaround of the car. It's nice looking for being 25 years old, isn't it?

Phase 1: The project begins

Hi there, People. My name is Trudy and I am a 20 year old girl who just got her first car for Christmas - a 1983 12A Rotary Mazda RX-7. This car has been in our family for several years, and recently (about a year ago) decided to stop running. So, I took it upon myself to help little "Wendy O." (named for famed punk queen Wendy O. Williams)

A multitude of things need to be fixed on this car, most importantly, the fuel system needs to be replaced. After a failure in Colorado, I helped my dad to install a new fuel system that ran paralell to the factory one, out of copper tubing, held on with zip-ties and run through some elements that are bolted to the 'frame'.

After minimal tugging and wrenching, I discovered that the fuel tank was FULL of rust. So, my dad is going to weld me a new fuel cell out of stainless steel (Yay!!). For the time being, I am pulling off the old stuff (I just finished that today) and working on bending some new line out of brakeline from Checker, cleaning the origonal Nikki carb out with some carb cleaner, and firing up that 12A for the first time in a year!

Here are some pictures of a few other projects that need to be dealt with, including:

1. Fix headlight cover

2. Clean and undercoat car (Differential first...)

3. Interior carpet and upholstery

4. New fuel gauge and tach

5. Various dents/ trim / paint / marks where my dog ate my trim around the wheel well / other exterior details

6. Spark plugs

7. Wheels: sanded and clear coated

8. New rear brake drums

9. Driver's side locking/handle mechanism

10. etc.

"Wendy O."

Looks pretty good from this angle.

Interior Damage / Ripped out carpet

Engine Looks Great - That long hose was utilized in draining the fuel tank.

No fuel tank - also, one filthy differential and metal rod running behind it (no clue what that does)

One relatively clean differential, ready to be rubbed with a towel soaked in solvent and primed, then undercoated.

The 'Baking Pan" as I like to call it, more commonly known as the skid plate which houses the fuel pump and protects it from speed bumps and misc. flying road debris.

The screws / nuts that hold said baking pan and fuel pump assembly together and onto the bottom of the car. they all go through bushings and such that are part of the skid plate. There are four screws and one wierd nut and metal tube that fit over a threaded rod that protrudes from the bottom of the car. They are all 10mm, you need a box wrench.

The connector I labeled inside the car which supplies the fuel pump with power. I didn't show the hole it goes through, which is normally covered by a small access panel. Mine has become an access hole for mice.

Headlight cover damage, caused by myself around age 10.

As we can all see, there is some major stuff that needs to be taken care of. But right now, I just want wheels.

Well, hopefully I'll update sooner rather than later!