1991 Turbo Supra Smokes When Starts

Getphazed · 10-04-2005, 12:03 AM

I have a 1991 single turbo Supra, it runs fine but when i cold start it it smokes, the smoke has a weird smell to it to. Im wondering if anyone else has this issue or knows what may be causing this.

mrnickleye · 10-04-2005, 03:34 AM

Keep an eye on your overflow coolant bottle. If you start having to ad coolant to it, you got a BHG most likely. Worn valve guide seals will allow oil to seep into the engine combustion chamber as it cools down. When you start up, it will burn off the oil, and after it is up to normal temp, it quits smoking. A lot of work to replace seals.

suprra_girl · 10-04-2005, 11:48 AM

if it's blue smoke on startup = valve seals
white smoke on startup/warm up = condensation

how long does it smoke for on startup?

SupraMan1784 · 10-04-2005, 03:08 PM

weird smell...its probably your valve seals...u gotta change them

GreenChevelleSS · 10-05-2005, 02:59 AM

My guess would be valve seals too, you dont have to change them, it will just smoke on cold start up like most older cars with miles do... One of these days they should be changed tho.

lethalwithasupra · 10-08-2005, 03:28 AM

wow, that's familiar. hey does this cloud of smoke hide the car ? have you drilled out a catalytic converter recently ? my sup started doing that a few days after i drilled out the cat, so i thought it was just condensation. even got a few people to confirm that it was just condensation. you don't want it to hydrolic any valves when it finally blows the rest of the way through.

10-04-2005, 12:03 AM	#1
Getphazed Stock Join Date: Oct 2005 Posts: 16	1991 Turbo Supra Smokes When Starts I have a 1991 single turbo Supra, it runs fine but when i cold start it it smokes, the smoke has a weird smell to it to. Im wondering if anyone else has this issue or knows what may be causing this.

10-04-2005, 11:48 AM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	if it's blue smoke on startup = valve seals white smoke on startup/warm up = condensation how long does it smoke for on startup? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-04-2005, 03:08 PM	#4
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	weird smell...its probably your valve seals...u gotta change them __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

10-05-2005, 02:59 AM	#5
GreenChevelleSS 3" Exhaust Join Date: Oct 2005 Location: okiehoma USA Posts: 70	My guess would be valve seals too, you dont have to change them, it will just smoke on cold start up like most older cars with miles do... One of these days they should be changed tho. __________________ 1990 Toyota Supra Turbo 7M-GTE 1970 Chevrolet Chevelle SS 396 1996 Chevrolet Silverado Z71 www.cardomain.com/id/3115ultima

10-08-2005, 03:28 AM	#6
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	wow, that's familiar. hey does this cloud of smoke hide the car ? have you drilled out a catalytic converter recently ? my sup started doing that a few days after i drilled out the cat, so i thought it was just condensation. even got a few people to confirm that it was just condensation. you don't want it to hydrolic any valves when it finally blows the rest of the way through. __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

10-04-2005, 03:34 AM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Keep an eye on your overflow coolant bottle. If you start having to ad coolant to it, you got a BHG most likely. Worn valve guide seals will allow oil to seep into the engine combustion chamber as it cools down. When you start up, it will burn off the oil, and after it is up to normal temp, it quits smoking. A lot of work to replace seals.

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