high altitude engine smoke

zuknstien · 05-30-2006, 10:06 PM

my 85 runner 22re smokes blue smoke at a high altitude anthing above 3500 feet it starts blowin smoke and some times it acts like its almost being flooded out? at a start up what could cause this?

zuknstien · 05-31-2006, 07:24 AM

anyone had this problem before ????

paradisekid · 05-31-2006, 08:48 AM

I've had the same problem with my 85 4runner in higher altitudes, but it doesn't smoke when I am in lower elevations. I am also curious to why this happens.

Terrys_85_Toy · 05-31-2006, 09:11 AM

My '85 22R does the same thing. Don't know why, I've just learned to live with it.

Coop 50 · 05-31-2006, 12:54 PM

Did I read somewhere the 85 fuel injection is analog and the newer ones are digital?

You would think an altitude related problem might be because it runs too rich at high altitude, air is thinner but same amount of fuel. Maybe the system is adjusting it as much as it can to run leaner, but hits the limit of adjustment beyond a certain point.

Gnarly4X · 05-31-2006, 01:41 PM

Quote:

Originally Posted by Terrys_85_Toy

My '85 22R does the same thing. Don't know why, I've just learned to live with it.

At higher elevations the engine will generally run rich, which will "wash" the cylinders and combustion chambers with more fuel, this will cause a little extra "smoke" including some oil slipping past the rings into the combustion chamber and get burned. It probably happens more with high mileage engines and carb'd engines.
Gnarls.

TWOZEROFOUR · 05-31-2006, 01:49 PM

Mine dose it as well, mostly decending. Im ok with it.

TWOZEROFOUR · 05-31-2006, 01:49 PM

Mine dose it as well, mostly decending. Im ok with it.

zuknstien · 05-31-2006, 05:30 PM

ok its somewhat normal then

05-30-2006, 10:06 PM	#1
zuknstien Rock God Join Date: May 2004 Member # 31331 Location: Redding, CA Posts: 1,784	high altitude engine smoke my 85 runner 22re smokes blue smoke at a high altitude anthing above 3500 feet it starts blowin smoke and some times it acts like its almost being flooded out? at a start up what could cause this? __________________ 2 zuk buggys hammer #1155

05-31-2006, 07:24 AM	#2
zuknstien Rock God Join Date: May 2004 Member # 31331 Location: Redding, CA Posts: 1,784	anyone had this problem before ???? __________________ 2 zuk buggys hammer #1155

05-31-2006, 12:54 PM	#5
Coop 50 Registered User Join Date: Jun 2001 Member # 5315 Location: Shoreline WA Posts: 821	Did I read somewhere the 85 fuel injection is analog and the newer ones are digital? You would think an altitude related problem might be because it runs too rich at high altitude, air is thinner but same amount of fuel. Maybe the system is adjusting it as much as it can to run leaner, but hits the limit of adjustment beyond a certain point. __________________ 86 22R Weber carbed Toy Truck

05-31-2006, 05:30 PM	#9
zuknstien Rock God Join Date: May 2004 Member # 31331 Location: Redding, CA Posts: 1,784	ok its somewhat normal then __________________ 2 zuk buggys hammer #1155

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05-31-2006, 08:48 AM	#3
paradisekid weekend warrior Join Date: Jul 2005 Member # 50618 Location: Chico, CA Posts: 132	I've had the same problem with my 85 4runner in higher altitudes, but it doesn't smoke when I am in lower elevations. I am also curious to why this happens.

05-31-2006, 01:49 PM	#7
TWOZEROFOUR Registered User Join Date: May 2006 Member # 73440 Posts: 11	Mine dose it as well, mostly decending. Im ok with it.