My GTR R33 blowing white smoke

  • Thread starter crazy_cj
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crazy_cj

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Hey guys

My gtr r33 has been blowing smoke for a while now and for the life of my I have no idea what is causing it.

I have had a compression test done and it has come back good. I had a new turbo installed, so thats not the problem. new piping, and boost controller as well.

it blows alot of smoke, I could literally cover my street full of smoke. the smoke appears to be white, and has a burnt oil smell.

ever since the smoke has appeared. I have turned down the boost to 1psi...just to be safe.

I'm thinking it could be the pistons? since the compression test came back ok..I doubt its the head gasket...

any help would be much appreciated.
 
...
Nice car, have any pics?

And if the compression test came back ok, then the pistons would be fine.

Edit: Check for a coolant leak.
 
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If it's white and smells like burnt oil then that's what it is :lol:. Like R16 said, you may want to check that first. There are other things that could be wrong but start there. Do you have any pictures or videos?


If the head gasket went it would be bellowing dark blue smoke in mass amounts, I've had that happen before and the thing overheats in about 2 seconds.
 
So many left out details.

What do the plugs look like? That is always a good initial indication. Does it blow white smoke on idle or general driving or only on boost? What sort of compression test was conducted, regular or a leak down and what was the variation between cylinders.

Most likely a oil ring issue, oil problems can actually increase compression on a compression test due to it's sealing the compression rings.
Also you may have excessive blow by when on boost, do you have a oil catch can (common mod on R33's)? if so how much oil is it collecting? (also check the PCV hoses) This new turbo (only one?) you have fitted, is it ball bearing and if so do you have the oil supply restrictor fitted? Have you checked the new turbos end float to make sure it wasn't damaged or incorrectly assembled? (check intercooler to see if oil has collected) Are you sure it is oil and not coolant?

Are they stock pistons or aftermarket, has the engine had any knocking and does it have excessive ticking on idle (common for RB's that have had knock damage)?

Edit: sorry for my messy post.
 
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R1600Turbo
Most head gasket leaks will be anti-freeze and should blow white smoke. (steam)
Click to expand...


If its white it's coolant.

Oil is blue ish.

Gas/over fueled is black.

What you got there is blown head gasket.


I'd pull radiator cap on cool engine. Watch for bubbles. If you got bubbles in coolant. You are pushing compressed air in.

As mentioned above a leak down test.

. Also compression can be fine with a blown head gasket.

Sounds like a head gasket to me. To much boost. Crappy fuel. To much timing. Car got hot. Several factors.
 
OwensRacing
If its white it's coolant.

Oil is blue ish.

Gas/over fueled is black.

What you got there is blown head gasket.


I'd pull radiator cap on cool engine. Watch for bubbles. If you got bubbles in coolant. You are pushing compressed air in.

As mentioned above a leak down test.

. Also compression can be fine with a blown head gasket.

Sounds like a head gasket to me. To much boost. Crappy fuel. To much timing. Car got hot. Several factors.
Click to expand...

Oil is quite blue when it is a small/mid burning issue but when it is "cover the street" bad it usually blows very white, but yes it could still very well be coolant.
 
R1600Turbo
Most head gasket leaks will be anti-freeze and should blow white smoke. (steam)
Click to expand...

Generally yes but I had another situation in which it blew both XD. Pardon my terrible joke in my last post XD





If the head gasket is gone it's going to more than likely cost as lot. But since it's an R33 it would probably be worth it. With my situation it was a van so we scrapped it.
 
If it was just the headgasket then it is fine (not a common problem on DOHC RB's though, stock pistons usually are), not too hard to replace and with the sheer volume of quality steel gaskets available for it it may even be a blessing in disguise.
 
Jay
If it was just the headgasket then it is fine (not a common problem on DOHC RB's though, stock pistons usually are), not too hard to replace and with the sheer volume of quality steel gaskets available for it it may even be a blessing in disguise.
Click to expand...

Maybe if they are widely available it wouldn't be so costly but I was always under the assumption that they generally are, no matter what the application.
 
Well if it's burning oil bad enough to cloud the street then either he is adding oil to replace the burnt up oil. As well the smell would be a dead give away. It would very much wreak of burnt oil.

He should notice either oil level or coolant level dropping.

Plenty of info thrown at him that he should be able to diagnose it. Use google and info posted.



Jay is right about changing stock gasket being a blessing in disguise. As he mentioned the MLS gaskets available today are amazing and hold obscene cylinder pressure. Many are reusable too.

Changing head gaskets is a chore but not that hard. Did both on a Mustang out front of my dads shop on a 98 degree day. I learned a lot though. Basically don't spray an entire 10lb's of nitrous on one road at one time. LoL. I did hit the reve limiter in fifth.
 
Slashfan
If the head gasket is gone it's going to more than likely cost as lot. But since it's an R33 it would probably be worth it. With my situation it was a van so we scrapped it.
Click to expand...

You scrapped a car over a blown head gasket? I have changed 100's over the years. It's not the easiest job in the world, but certainly not so hard as to scrap an entire vehicle over it!
 
Just remember, when using a MLS gasket the block and head should be as clean and smooth as you can get them. Cork and rubber can fill the gaps a lot easier than metal can. Also dont reuse your old head studs.
 
oopssorryy
Just remember, when using a MLS gasket the block and head should be as clean and smooth as you can get them. Cork and rubber can fill the gaps a lot easier than metal can. Also dont reuse your old head studs.
Click to expand...

You mean head bolts. Doubtful this has studs and if so you wouldn't replace them unless they have messed up thread or something.

Basically what he is saying the stock bolts are stretch to TQ. So once you TQ them they are stretched and should not be reused. Grab a new set of ARP's.



Also not sure what MLS gaskets you use but the Felpro's have rubber coating.

mmfp_1103_04_o+turbocharged_363_stroker_engine_build+fel_pro_mls_head_gaskets.jpg
 
MustangManiac
You scrapped a car over a blown head gasket? I have changed 100's over the years. It's not the easiest job in the world, but certainly not so hard as to scrap an entire vehicle over it!
Click to expand...

When the parts cost more than the car is worth you'd scrap it too.
 
Sorry for the late reply guys.

my car is at ultratune now. we just noticed that the exhaust it full of oil! so that indicates a broken ring?

fingers crossed guys!.. I dont want to rebuild the engine ahhh!

thing is scary fast though.
 
*ibo* S3 Racer
That is what I wanted to hear.


Now show us pics of your bcnr and a bit of the specs ;)
Click to expand...


Ill take some pics for sure man.

specs

Ball bearing hks turbos
aftermarket intercooler
all new piping
boost controller
new cams
forged pistons
pod filter

close to 400kw

running 12psi boost....well was running :(
 
You do have the oil restrictors in place for the ball bearing turbos right? Should check intercooler for oil build up, if so then it is almost certainly turbo.

But most likely a ring/piston damage which will mean a rebuild.
 

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