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I went to get my car dyno tuned again at 10psi. With 8pulls ranging from 5-10psi, a shitload of white smoke came out of the exhaust and valve cover breather(see coolant mixed in with the oil spraying out). After that the car ran rich as hell. All the spark plugs are black.
I did a compression test. All came out normal expect for cyl. #2. It was 30psi even with a cap of oil. Cyl. #3 was also low at 150psi. All the others came 180psi cold motor.
I havnt pulled the head out yet. What do i look for if the rings are bad?

Also it wasnt make the power it should with thte setup i have. At 6psi it only made 210hp/135tq. 10psi 240hp/150ish tq. My setup is listed in my sig


Modified by komat at 9:59 PM 12/17/2005


Modified by komat at 12:04 AM 12/21/2005

 

the a/f was in 11.5 the whole time.

 

well im pretty sure the ring went out or something around it

a good bit of oil in the turbo and manifold

 

your ringlands may be shot. if so you probably won't be able to see anything by pulling the head, you'll need to pull out the pistons/rods if that's the case.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by komat &raquo;</TD></TR><TR><TD CLASS="quote">well im pretty sure the ring went out or something around it

a good bit of oil in the turbo and manifold</TD></TR></TABLE>

number 2 cylinder is really close to the oil feed line o the head. could have just blown the head gasket in 2 spots. - hope for that - its less expensive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by komat &raquo;</TD></TR><TR><TD CLASS="quote">
Also it wasnt make the power it should with thte setup i have. At 6psi it only made 210hp/135tq. 10psi 240hp/150ish tq. My setup is listed in my sig

</TD></TR></TABLE>

My old B16 made the same 240 at around 10psi on that same turbo so that's not the issue. A/F was not the issue either, most likely timing was too aggresive and it detonated. Pull the head and find out..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxmatt &raquo;</TD></TR><TR><TD CLASS="quote">

My old B16 made the same 240 at around 10psi on that same turbo so that's not the issue. A/F was not the issue either, most likely timing was too aggresive and it detonated. Pull the head and find out..</TD></TR></TABLE>


timing was not aggresive at all, that is the odd part about this occurance.

 

i believe it was at 18

 

at 10 psi it was much much less than 18. At like 7 it was like 18.50 peak, but less at max trq.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Importordomestic &raquo;</TD></TR><TR><TD CLASS="quote">

number 2 cylinder is really close to the oil feed line o the head. could have just blown the head gasket in 2 spots. - hope for that - its less expensive.</TD></TR></TABLE>
i really hope that is it

just got to remove the intake manifold then off the head goes


will take some pics when i get it off

 

running under 18 degrees could have been running too little timing and had pre-ignition. could be alot of things, pull head and find out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">running under 18 degrees could have been running too little timing and had pre-ignition. could be alot of things, pull head and find out. </TD></TR></TABLE>

It was a basic linear retard, it should've been fine. I have done countless cars the same way. But hopefully it was just a headgasket, I am really curious to see what happened. I guess there are numerous things that it could be and causes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">It was a basic linear retard, it should've been fine. I have done countless cars the same way. But hopefully it was just a headgasket, I am really curious to see what happened. I guess there are numerous things that it could be and causes.</TD></TR></TABLE>


+1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxmatt &raquo;</TD></TR><TR><TD CLASS="quote">

My old B16 made the same 240 at around 10psi on that same turbo so that's not the issue. A/F was not the issue either, most likely timing was too aggresive and it detonated. Pull the head and find out..</TD></TR></TABLE>

those numbers seem pretty reasonable.

 

Hey man sorry to hear that. I'll be here most of the week if you need a hand.

 

what do you guys think

 

When my motor went it was the ringlands.

 

i was told that the headgasket on 2cyl and 3cyl was bad?

 

Asking a million times with those pictures won't get you any closer to fixing it. Either pull it apart, or try a new HG first. Sometimes you get lucky with OEM pistons, sometimes you don't.

 

I once crossed my fingers and changed a headgasket to no avail, it was broken ringlands and I wasted time & money changing the HG out. those pics aren't the best, it's hard to tell anything from them, but from what I can see between 2 & 3 the HG doesn't look bad.

 

if it was the ring lands
why would it blow a **** load of white smoke out?

 

order arp bolts and cometic headgasket

let you guys know more when i get them and install them

god i hope its just a headgasket

as for pictures i couldnt figue out how focus the digital camera or what mode to use to take the pics.

 

ur spitting out the breather. Its the ringlands IMO. dont waste the money. same thing happened to a friend with a H22. He replaced the headgasket and just had to pull it apart again.

 

ringlands get my vote.

What is your pcv setup? If its still stock then DOUBLE my vote for ringlands.

HG is a cheap and easy fix, its like $50 plus fluids, way cheaper than any other propsed cause of your problem

Swap the HG, from your pics your halfway there, swap it, if it still blows smoke, its the ringlands.

good luck let use kno bout PCV

 

Most likey, your ringlands are broken.

The same thing happened to me a few weeks ago. I ended up swapping my block out since the block was old anyway.

If you have white smoke coming out of your exhaust and breather hole heavily, chances are it IS the ringland(s) that broke.