Low compression 2 cylinders - Page 2

Travis89Turbo · 10-09-2010, 01:41 PM

Quote:

Originally Posted by CanadianBak'inSupra

i was told white smoke was antifreeze, and blue smoke was oil...
doesnt make sense either that 160'000 would have bad rings...

ive had 4 supras and never experienced bad rings, my 85 2.8 was running 360'000km and still running strong

http://www.youtube.com/watch?feature...&v=7XTrPKt9Tnk

This was caused from a hole in a piston. White as can be...

Also when my turbo oil seals went out it was white also. The color of smoke is a rule of thumb not written in stone anywhere

160k is pretty good out of rings if it wasn't cared for properly... and again BHG won't lower the compression that much..IMHO

CanadianBak'inSupra · 10-09-2010, 02:48 PM

160'000 to have bad rings you would need to have putting the wrong oil in for 10 years or somthin??

does the 1j also have a ct26? because there antifreeze cooled. if the seals were gona bad enough could antifreeze be forced into the head??

that is some mean smoke comin from ur 1j

Travis89Turbo · 10-09-2010, 03:09 PM

Quote:

Originally Posted by CanadianBak'inSupra

160'000 to have bad rings you would need to have putting the wrong oil in for 10 years or somthin??

does the 1j also have a ct26? because there antifreeze cooled. if the seals were gona bad enough could antifreeze be forced into the head??

that is some mean smoke comin from ur 1j

That's not my 1j. thats a buddy of mine. Melted a hole in a piston so its burnn oil with every stroke...

1jz use twin ct12a turbos. but they are antifreeze cooled..

my turbo that went out was on my old 7mgte. it was just the oil seal that burned out. The only way antifreeze would burn from the turbo is if it leaked into the oil passages and the oil seal was burned as well..

160k miles is 257,495 km. So it is definatly not un heard of to have rings go at that many miles if oil has not been changed regularly

CanadianBak'inSupra · 10-09-2010, 03:12 PM

oh ya i forget you Americans use miles,
we igloo people use kilometers so yea... my bad

86.5Supra09 · 10-09-2010, 04:39 PM

Hey so Ive never changed piston rings before.. Was wondering if anyone could load some pics of the process. thanks for the help so far guys. appreciate it.

cre · 10-10-2010, 06:45 PM

Quote:

Originally Posted by Travis89Turbo

http://www.youtube.com/watch?feature...&v=7XTrPKt9Tnk

This was caused from a hole in a piston. White as can be...

Also when my turbo oil seals went out it was white also. The color of smoke is a rule of thumb not written in stone anywhereO

You don't have enough light in that and youtube sucks for color accuracy, but that looks plenty blue in a couple instances... and you apparently don't know precisely what you're looking for. Burning oil is not crayola blue, its bluish white to a bluish grey. Some oils may have a little less bluish cast than others but it's always there. And it's pretty hard to see unless it's sunny out. Looking at that video I wouldn't have been surprised to find that the HG had let go as well.

Coolant is water, glycol and sulfates. When burning coolant you're looking at mostly steam, go boil some water and report back please.

Metaphysico · 10-30-2010, 06:52 PM

Oil burns blue normally, coolant is white, unburnt fuel is black. But when you have a lot of oil burning it will be white and it will be a lot of smoke. My turbo went out and it was blowing a lot of white smoke, but I burnt 1.5qt of oil in 30 miles.

10-09-2010, 02:48 PM	#12
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	160'000 to have bad rings you would need to have putting the wrong oil in for 10 years or somthin?? does the 1j also have a ct26? because there antifreeze cooled. if the seals were gona bad enough could antifreeze be forced into the head?? that is some mean smoke comin from ur 1j __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

10-09-2010, 03:12 PM	#14
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	oh ya i forget you Americans use miles, we igloo people use kilometers so yea... my bad __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Cylinder Compression Values	SupraSleuth	MKIII Supra	6	08-17-2009 11:53 AM
Compression and Block Tests	mrnickleye	Supra FAQ	0	01-29-2007 03:49 AM
Just did compression test...Help with oil pressure!	2JZEFINI-17	MKIII Supra	1	11-06-2006 12:06 AM
87 Toy Supra N/A, Running on 4 Cylinders	wilvelas	MKIII Supra	5	04-24-2006 02:40 AM
Compression Question	Intenseneal	MKIII Supra	5	08-15-2005 10:27 AM

10-09-2010, 04:39 PM	#15
86.5Supra09 Stock Join Date: Oct 2010 Location: Ohio Posts: 10	Hey so Ive never changed piston rings before.. Was wondering if anyone could load some pics of the process. thanks for the help so far guys. appreciate it.

10-30-2010, 06:52 PM	#17
Metaphysico Stock Join Date: Oct 2010 Location: Georgia Posts: 27	Oil burns blue normally, coolant is white, unburnt fuel is black. But when you have a lot of oil burning it will be white and it will be a lot of smoke. My turbo went out and it was blowing a lot of white smoke, but I burnt 1.5qt of oil in 30 miles.