I have a '79 rx-7 that I just rebuilt the motor in. I got it to start for the first time last night. My concern is that it smokes a lot. We ran it for about 45 mins. and it continued to smoke a lot. I know it's normal to smoke quite a bit after a fresh rebuild but is it normal to smoke for this long?
Also, I cannot seem to get the mixture right. Is this normal? Am I missing something obvious?
My timing is on, my spark plugs are nice and clean I just am not sure if everything is going the way it's supposed to.
Any help would be greatly appreciated.

 

What does the smoke smell like? Oil, fuel, or coolant?

 

If the carb is running way too rich, or even trying to flood, you'll never get the engine to idle correctly. It will also cause it to smoke.

 

I can't really tell what the smoke smells like, it smells like a mixture of things. I don't think it really smells like coolant, but it definitely smells some of oil and fuel...

I'll check the carb to see if it's running way to rich.

 

Losing any coolant?

 

Did you machine the end plates? New oil control o-rings?

 

Yea, could be one of those pesty water,oil, o-rings. Damn things slip out of place sometimes when re-assembling. Is the smoke white?

 

I don't appear to be losing much coolant but yeah the smoke is white.

My buddy is pretty sure it's the o-rings. Says that if he puts his hand behind the exhaust for a minute it speckles his hand in oil.

Sound like a tear down and re-assemble?

 

does it just spit condensation or is it for sure oil/coolant, my new rebuild will spit condensation for a bit on thr first start of the day but once its warm it stops, i lose no oil(i premix) or coolant. if its white smoke that disapears right away it may be steam from exhaust condensation, if it stays thick it will likely be coolant, i had one previously that acted like that, it didnt last long or run good ever.