Big Clouds of White Smoke

cre · 11-17-2011, 03:47 AM

A weak battery isn't going to affect how the engine runs very much unless there's something significantly wrong with it. The alternator is what you need to look at if you think that's the issue.

BHG's can cause many different symptoms depending on where it's blown and how big the leaks are.

Did you read the old spark plugs before disposing of them? If not, do you still have them? If the problem is in or before the combustion chamber they'll give you a very good idea what problems you may be facing and in which cylinders.

briangoesindie · 11-17-2011, 11:50 PM

Battery is definitely a problem, but a separate one. Did the compression test and was getting about 145-150 PSI in cylinders 1-4, but neither cylinder 5 or 6 would get over 130. Unfortunately, I think you bet on the right horse. It's looking more and more like a BHG. Gotta start figuring out when I can do the work since this is my daily driver.

cre · 11-18-2011, 12:07 AM

Look down through the spark plug holes at the crown of each piston. If 5 and 6 look much cleaner then you're probably losing coolant into those cylinders. This could also cause an incomplete burn adding unspent fuel to the mix coming out of the exhaust (hence the atypical odor). Have you not been losing any coolant?

briangoesindie · 11-18-2011, 01:01 AM

I have been losing a little bit of coolant, not too fast, but I assumed it was due to a small leak, as I almost always have a tiny drip... I was getting a fiz as i refilled the coolant after opening up the thermostat housing which was like the nail in the coffin for me. Ordered the head gasket kit, and will hopefully have it tmw. The exhaust has started to develop a slight sweet smell... I just find it strange how I'm getting the BHG with all completely different symptoms from the last couple of times it has happened. Sadly, the smoking is getting worse, so I had to jump on this before it causes a much worse problem.

EDIT: Does anyone know a good place to order the molded heater hoses for the 7M engine? I hate ordering from toyota cuz it always takes forever to get the parts i need now...

11-17-2011, 03:47 AM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	A weak battery isn't going to affect how the engine runs very much unless there's something significantly wrong with it. The alternator is what you need to look at if you think that's the issue. BHG's can cause many different symptoms depending on where it's blown and how big the leaks are. Did you read the old spark plugs before disposing of them? If not, do you still have them? If the problem is in or before the combustion chamber they'll give you a very good idea what problems you may be facing and in which cylinders. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

11-18-2011, 12:07 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Look down through the spark plug holes at the crown of each piston. If 5 and 6 look much cleaner then you're probably losing coolant into those cylinders. This could also cause an incomplete burn adding unspent fuel to the mix coming out of the exhaust (hence the atypical odor). Have you not been losing any coolant? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lots of white smoke	IKneX	MKIII Supra	18	07-16-2011 03:05 PM
white smoke while below 1500rpm and over heating	spunkenhimer	MKIII Supra	22	02-12-2011 06:04 AM
white and blue smoke after rebuilding head block	ahruizguerra	MKIII Supra	2	10-01-2010 07:50 PM
White smoke from exhaust manifold	Rommy	MKIII Supra	15	07-26-2009 06:32 PM
White Smoke	Drag0na5h	MKIII Supra	1	04-25-2006 06:36 AM

11-17-2011, 11:50 PM	#2
briangoesindie Stock Join Date: Nov 2011 Location: Rockville, MD USA Posts: 6	Battery is definitely a problem, but a separate one. Did the compression test and was getting about 145-150 PSI in cylinders 1-4, but neither cylinder 5 or 6 would get over 130. Unfortunately, I think you bet on the right horse. It's looking more and more like a BHG. Gotta start figuring out when I can do the work since this is my daily driver.

11-18-2011, 01:01 AM	#4
briangoesindie Stock Join Date: Nov 2011 Location: Rockville, MD USA Posts: 6	I have been losing a little bit of coolant, not too fast, but I assumed it was due to a small leak, as I almost always have a tiny drip... I was getting a fiz as i refilled the coolant after opening up the thermostat housing which was like the nail in the coffin for me. Ordered the head gasket kit, and will hopefully have it tmw. The exhaust has started to develop a slight sweet smell... I just find it strange how I'm getting the BHG with all completely different symptoms from the last couple of times it has happened. Sadly, the smoking is getting worse, so I had to jump on this before it causes a much worse problem. EDIT: Does anyone know a good place to order the molded heater hoses for the 7M engine? I hate ordering from toyota cuz it always takes forever to get the parts i need now...