BLACKrotor92

iTrader: (3)

i got a all oregenal 73 rx2 motor with 80k on it never taken part at all wut should i do dose anyone kno if this motor will run gooood if i do it up..dose anyone have this motor and is running it?

Latin270

When was the last time this motor ran? I take it its a 12a? Pour some oil down the carb and turn the motor over by hand a few times before you try to fire her up.

BLACKrotor92

iTrader: (3)

the motor is 12a and was backd in to and the driver i bought it from drove it home like that and the motor blew and i was ganna get the internals for it that should be pretty much the problem but you kno any one racing with the same motor done up? and is it worth porting

EDSRX3

I have a 73 RX3 motor, I believe they are the same, is yours a twin dizzy?

The motor originaly came with 6 mm apex seals. I understand the old seals can be brittle. The front cover can be changed to the 81-84 RX7 elctronic distributor cover to get away from the points ignition.

Parts for the 12a are getting to be hard to find. You will not know the condition of the housings and irons until its stripped down!

Latin270

Yes 12a are worth porting if the housings and internals are in great shape!

Jeff20B

iTrader: (13)

You can only do a mild street port on your side plates. If you cut too deep you'll cut into the water jacket.

BLACKrotor92

iTrader: (3)

yah the motor has twin dizzys

lousrx2

I have a 1973 twin dizzy for sale it has 42,000 original miles on the motor I rebuilt it and replaced the 6mm rotors with 2mm 1983 12a rotors. The motor is not ported but runs like a champ. I pulled it out of my Rx2 and replaced it with my race motor. A 1989 turbo 13B. I'm selling it if your intrested. Give me a call 973 390 0102.
Luis.