Purchased HP Books "Street Rotary" book, and have attempted searches on more than one Mazda forum--but no success.
I want to identify a 12A core engine (engine casting has 12A cast right into it); purchased out-of-the-vehicle from a Craigslist advertisement.
Owner claimed it's from an RX-7; but I suspect it's like every Chevy engine or engine part sold is from a Corvette.
1. This has a single distributor (1974-newer, but not so new as to be distributorless, which would be--what? 1986?)
2. Has electronic ignition (magnetic pickups) in the distributor. I don't know when Mazda dumped points in favor of electronic ignition.
3. Has two coil wires. I read that later engines used three coils.
4. Has thermal reactor, so it's older than catalytic-converter equipped vehicles.
5. Has carburetor. Older than FI-equipped vehicles.
I'm kinda guessing that it's from the second-half of the 1970s, but I'd like to narrow that down to year and model.
I'm sure there's engine ID numbers including partial VIN stampings somewhere on this engine...but I haven't found them. I wouldn't know where to decode them anyway. Tips?
I'd kinda like to hear this thing run (on an engine stand, I don't have a vehicle for it.) but since the starter motor bolts to the bellhousing instead of the engine block, AND I don't have the ignition amplifiers and wiring harness, that'll be near-impossible. I bought it as a non-running core with the intent of pulling it apart for inspection to satisfy my curiosity.
I want to identify a 12A core engine (engine casting has 12A cast right into it); purchased out-of-the-vehicle from a Craigslist advertisement.
Owner claimed it's from an RX-7; but I suspect it's like every Chevy engine or engine part sold is from a Corvette.
1. This has a single distributor (1974-newer, but not so new as to be distributorless, which would be--what? 1986?)
2. Has electronic ignition (magnetic pickups) in the distributor. I don't know when Mazda dumped points in favor of electronic ignition.
3. Has two coil wires. I read that later engines used three coils.
4. Has thermal reactor, so it's older than catalytic-converter equipped vehicles.
5. Has carburetor. Older than FI-equipped vehicles.
I'm kinda guessing that it's from the second-half of the 1970s, but I'd like to narrow that down to year and model.
I'm sure there's engine ID numbers including partial VIN stampings somewhere on this engine...but I haven't found them. I wouldn't know where to decode them anyway. Tips?
I'd kinda like to hear this thing run (on an engine stand, I don't have a vehicle for it.) but since the starter motor bolts to the bellhousing instead of the engine block, AND I don't have the ignition amplifiers and wiring harness, that'll be near-impossible. I bought it as a non-running core with the intent of pulling it apart for inspection to satisfy my curiosity.