coolant causing smoke??

[bowjangles]

Trying to brainstorm 13-B with major smoke at start-up. Logic sez that it is either damaged oil seals or coolant seals.
Could coolant somehow be getting by the O- rings on intake manifold and into the exhaust system.? I recently replaced them and they look O.K.-Whadayathink guys?

[rxtasy3]

if it's coolant then it's the other O-ring. only fix is rebuild.

[Pete_89T2]

First thing you need to do is figure out if it's oil smoke or coolant smoke. Easiest way to tell is smell & color of the smoke. If it's coolant burning, it will be white smoke and smell sweet. If it's oil burning, it will be bluish color, and have a nasty, acrid smell.

[Rotary Evolution]

extremely old fuel will also cause smoking issues, if the fuel isn't that old then see which level oil/coolant is dropping.

[bowjangles]

Another O ring? And where would that be?

[GySgtFrank]

Originally Posted by bowjangles

Another O ring? And where would that be?

The rotor housings and irons are sealed with O rings, when they (or the lands holding them) go you get coolant leaking into the area that the rotor occupies. Thus white smoke out the tail pipe.

[bowjangles]

Thanks for the info

[rxtasy3]

found this image

[Rotary Evolution]

since this is in the old school section then that's not a likely candidate, unless a fuel injected engine was swapped in.

[bowjangles]

So, u r saying that the pic of the busted O ring is from a fuel injected engine?? My 13-B is not fuel injected, but I see now where the o-ring is located and understand that a rebuild is in my fiuture.
Before I do the rebuild, I am going to plug up the coolant ports on the intake manifold and see if that stops the smoking What do u think?

[Rotary Evolution]

all engines prior to 1986 had the coolant seals in the rotor housings so the wall breaking was a bit less of a concern. they still could lose a coolant seal but again, less likely than the 1986-2002 engines.