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-   -   coolant causing smoke?? (https://rotarycarclub.com/showthread.php?t=18136)

bowjangles 03-17-2014 07:57 AM

coolant causing smoke??
 
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 03-17-2014 11:50 AM

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

Pete_89T2 03-17-2014 12:58 PM

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 03-17-2014 01:15 PM

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

bowjangles 03-18-2014 08:10 AM

Another O ring? And where would that be?

GySgtFrank 03-18-2014 02:45 PM

Quote:

Originally Posted by bowjangles (Post 278462)
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 03-19-2014 07:54 AM

Thanks for the info

rxtasy3 03-19-2014 11:42 AM

found this image

http://i12.photobucket.com/albums/a201/Rdodds033/2.jpg

Rotary Evolution 03-19-2014 12:46 PM

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

bowjangles 03-20-2014 08:12 AM

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 03-20-2014 02:36 PM

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.


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