i am new to mazda rx7 and i have one now a its got the 12a motor and i cant get over 60 mile per hour in it not much power at all wont pull hills cant hardley get took off in first gear it only one spark plug seems to make a differnce when you pull the wire off its got new plugs and wires cap and button please help thank you its an 1983 mazda rx7 12a

 

Do you have spark on all 4 plugs?

 

sounds like it could be an ignitor, check the ignitors on ur distributor cap also is the tach working????

 

havent check the plugs for spark but the wires do when you pull them off the cap to see whitch is missing

 

Do a search for something called a teter totter Id explain but its allready been done.

Also make sure you got no vacume leaks check all your hoses.

 

ok all 4 plugs are firing the front makes three swooching sounds loud . the rear makes three swooching sounds but hard to here. and if you pull the top plug wire off of the front it wont start and run on the other three. you put the top plug wire back on and it will start and run.
any ideas

 

Install new plugs, and a new fuel filter, then try again. It might also be worth checking the timing.

When trying to get up to speed, how does the car act? Does it seem like the more gas you give it, the slower it goes?



.

 

ok thanks ill give it a try

 

When trying to get up to speed, how does the car act? Does it seem like the more gas you give it, the slower it goes?

 

it picks up speed but not very quick

 

pull the cat out of the exhaust and run it, if it revs quickly it is plugged. Take a light and look inside the muffler end of the cat and see if the honey comb if falling apart. mine was, replaced it and now has more power than ever before. Found that I am not having to drive it so hard or rev it as much to get the results I want.
Just a thought.
Snivley

 

it has no cat on it done been took off

 

if you pull the front top plug wire off shouldnt it still run on the other three it dont

 

when i pull one of the plug wires off and stick it to the car theres fire but you stick it to the distributor cap theres no fire you pull all plug wires off but two and it does not change a thing it still runs the same

 

your ignitors are bad, check them

 

where are the ignitors this is my first rotery

 

If you have spark on all plugs, then your ignitors are fine. If one set (upper or lower) do not work, then the ignitor would be suspect.

the ignitors are the little flat square boxes (2 of them) mounted on the distributor.

 

plulled all plugs the back one has very little to no swishing sound comeing out of it does this mean the apex seals are wore out the front makes loud swishing sound

 

Possibly. How many miles are on your car?

1. Pull your exhaust manifold and turn the motor while looking into the exhaust port. Make sure you can see all of your apex seals. If you can see all of your Apex seals, move on to step 2. If you can't see all 3 apex seals (you see the slot where one+ rides) your motor is toast.

2. Push on them with a pencil (eraser end). Do they move? If not, spray SeaFoam Deep Creep on them and turn the motor over by hand. Spray more in on each apex seal. Continue until you're through the whole can. Re-check apex seal movement. If the apex seals are moving freely, turn over the motor by hand again and get as much of that **** out as possible. Put the exhaust back together and fire her up. Take her out for a spin and report back.

 

thanks ill give it a shot

 

Definitely sounds like rear seals are shot, i.e., motor is bad. Exact same thing happened with my first rotary earlier this year (80 with a 12A motor). Would run but lost power, wouldn't get over 60, still had fire to all the plugs, etc. I was told it wasn't worth trying to fix or rebuild it, so found another motor in a junkyard and a friend helped me change it. It was surprisingly easy to do - it's the first time I had changed a motor myself.