White smoke from exhaust

[swedish]

I just bought an 89 240 hatch with an sr20det. It's got a couple of issues, one being heavy smoke from the exhaust which I've recorded in this video:


heres a link since the embed doesnt seem to be working http://www.youtube.com/watch?v=Z2yTLaW-zH4

The smoke smells sort of like gas and ive checked the oil and it seems fine so its not coolant. I suspect the PCV valve and wondering if someone could validate? Also if it is the PCV what do I need to do? Do I need a new one or can I just take it out and clean it.

Also, there seems to be a leak on the oil feeder line which causes oil to run onto my headers and burn off, anybody else had something like this? Could this simply be the nut holding the line in place coming loose or is it more likely the threads are stripped?

[Thedriftbadger]

Holy headgasket batman!

[yetijeff]

Could be a bunch of things
-valve stem seals/seats
Do a leak down test
-turbo
Pull the piping off check if it's oily etc
-rings
Not likely because from what I can tell it sounds like it's running good. Compression test
-headgasket
Compression test.

Also check your spark plugs and see if one or more is oily/wet. That will help u narrow down what cylinder it's coming from. If all or none are oily nasty etc, it's coming from before or after combustion.

As for the gas smell could be a faulty/leaky injector, bad tune etc... Basically it looks like u unfortunately bought some else's problem

[Renelovesnike]

check yous radiator coolant if its dropping from all that steam which i wouldn't be surprised.

also remove your engine oil fill cap and check if its milky/chocolate milkshake to be a dead giveaway on a bigger head gasket leak. i think thats too much steam to be a small headgasket leak.

id also do a leakdown test and see which cylinder has the most leakage and then pop radiator cap "cooled down" to see bubbles in the cooling system.

id also pressure test the head afterward if you do go along with a headgasket job to be on the safe side*

Good Luck*

[Thedriftbadger]

It's white smoke. That's coolant. Pcv has nothing to do with coolant. Neither do the valve guids/seals. Turbo wouldn't leak coolant into the exhaust, it's not possible. Rings wouldn't leak coolant either. Oil would be blue. You have an absolute shit load of coolant getting into your cylinders, that's your head gasket.

[yetijeff]

The only way to know for sure wether it's coolant or oil is go down and get a block tester. U can rent or buy them at autozone. If u don't know what it is or how to use it google it.

[Thedriftbadger]

Just do a leak down test. No need for fancy tools

[yetijeff]

Originally Posted by Thedriftbadger

Just do a leak down test. No need for fancy tools

What is a leak down test gonna do if it's in the coolant system? The only way to know if ANY combustion gases are present in the cooling system 100% is to do a block test. Which u can rent for free, and a monkey could do it.

[Thedriftbadger]

Originally Posted by yetijeff

What is a leak down test gonna do if it's in the coolant system? The only way to know if ANY combustion gases are present in the cooling system 100% is to do a block test. Which u can rent for free, and a monkey could do it.

Do you even know what a leak down test is? Maybe do some research.

[yetijeff]

Ya do u? You pressurize each cylinder (usually to a bout 80psi) at tdc and see if u lose pressure and how fast. Problem is, u don't know if it's from the rings, a bent valve, or the headgasket. Before u go trying to give someone advice u should actually understand what your giving them advice on. The tools required to do a simple block test are more accessible to the average joe than to set up a leakdown test. U go to autozone and rent it for free, or spend the 40$ and buy it. Now please go google what I just said so u can confirm.... Florida strikes again

[Thedriftbadger]

Originally Posted by yetijeff

Ya do u? You pressurize each cylinder (usually to a bout 80psi) at tdc and see if u lose pressure and how fast. Problem is, u don't know if it's from the rings, a bent valve, or the headgasket. Before u go trying to give someone advice u should actually understand what your giving them advice on. The tools required to do a simple block test are more accessible to the average joe than to set up a leakdown test. U go to autozone and rent it for free, or spend the 40$ and buy it. Now please go google what I just said so u can confirm.... Florida strikes again

Dumbass. The air has to go somewhere. If it's in the coolant you'll hear and see it. You can florida me all you want, it doesn't change the fact that you learned a term from somewhere and have no idea what the fuck you're even talking about. Go rent your stupid block testing shit. I'll throw some air in the cylinders to confirm what is clearly a headgasket failure and have the motor half way torn down before the schmucks at autozone can run your credit card.

[yetijeff]

I was trying to be nice but ur obviously a fucking tool. No shit the air has to go somewhere. Could go up, down or through the headgasket. Block test is the only way 100% to know there are combustion gases are in the cooling system. Not everyone has an air compressor, and or the tools to do a leakdown test. Everyone has an auto parts store somewhere semi near them.

[Laujpha]

I recently fail smog with my 93 240sx for gross polluted. My s13 have alot of white smoke coming from the exhaust tail pipe. i decided to change head gasket, valve seal, fuel filter, o2 sensor, new spark plug, air fliter, clean my egr, intake gasket, header gasket, valve cover gasket, new water pump, new termostat, new tps,clean my iacv, ect.. pretty much the whole head gasket set kit.. with that being said...i still have white smoke and car smell like its burnig to much gas...did compression test and all cylinder have 155 psi...any suggestions and help i would really appreciate it.

[jedi03]

injector stuck open or tune probably