Smoking rotary question

I've been offered a 1990 RX7 for cheap ,but the owner says it "kills every bug in a 2 mile radius until it warms up". What's involved it new parts, or whatever to make a rotary stop smoking?

Does it run well after warm up? If so run the hell out of it and it might clear up. It has worked for me.

smoking rotary

some of the seals have gone bad

plan on a rebuild

How much of a rebuild is up to you. It could just be the water seals or oil control rings, but no matter what the smart move is to be taking the engine apart, fixing what is wrong and putting it back together.

In reply to pilotbraden:
He says it stops smoking after it warms up, which may have taken awhile as it is his ice racing car.

Make a rotary stop smoking?...I didn't know that was even possible.

In reply to Brett_Murphy:

Would that be any more , or any less complicated than rebuilding a piston engine? I've rebuilt engines before, just no experience with a rotary.

It's more different than more complicated - there are a couple of annoying time consuming pieces of work like clearancing the side (oil) seals. There are a few decent videos on Youtube about rebuilding them.

Smoke is usual oil getting in the combustion chambers. Water is possible, but that's rather annoying and can create a bunch of corrosion damage.

Rebuilds get a bit expensive when you need new housings, but you won't know until you tear into the engine.

In reply to DeadSkunk: Running it hard probably won't fix a race car, I was thinking more like old man car that never got over 4,000 rpm.

I know a way to resolve that

Driven5 wrote: Make a rotary stop smoking?...I didn't know that was even possible.

Easy...Turn it off! Now getting them to stop leaking is another story...

Run 2 stroke oil in your gas so it smokes all the time?

In reply to patgizz:

Properly dosed two-smoke oil won't cause any visible smoke.

Theres's and awful joke about what to do if your wife starts smoking that seems relevant here. Slow down and use a lubricant.