Does this look like a ring or valve stem seal issue(Resolved installing 1g head)

[havlc2u]

I have had oil leaking into exhaust manifold from cylinder 2 I removed the spark plug. It looked like the pic. Just wondering if it looks like a valve stem seal or piston ring I was going to replace the seals for the oil leak.




I am going to put my 1G head back on and see what I get for results.

 

[livedsm4g63]

That looks as if you took a picture of the spark plug while it's in... Just stating the obvious.

 

[havlc2u]

That looks as if you took a picture of the spark plug while it's in... Just stating the obvious.

Well that is the top if the piston where the light brown liquid is.

 

[livedsm4g63]

The picture is pretty small when I bring it up on my phone. It's distorted.

 

[havlc2u]

The picture is pretty small when I bring it up on my phone. It's distorted.

Maybe this will help not sure. The picture was taken with my phone So that might be why it's distorted. So to describe it when looking into the cylinder I can see light colored brown liquid on top the piston. I was about to replace the valve stem seal because the oil that is leaking from cylinder 2 into the exhaust manifold made me thing it was a seal. Until I noticed all this liquid.


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[clipto]

Is that a pic of down the sparkplug well? If so it looks like part of the valve cover gasket aka the sparkplug rings. The valve stems are under the valve springs in the head they would not be easy to see. Ops edit now I know what your talking about. Your definitely leaking pass the seals. Have you inspected your head gasket as well? Never hurts to change out valve stem seals if you can I had to and I hated it becuase before I changed them it was smoking like a mutha driving around.

 

[havlc2u]

Is that a pic of down the sparkplug well? If so it looks like part of the valve cover gasket. The valve stems are under the valve springs in the head.

Yes it is the sparkplug well.

Here is exhaust port 2 where the piston has the light brown liquid on top of it. Which I believe to be oil.


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Yeah I didn't check the head gasket really the head only has 70miles on a rebuild. but I think the head was screwed up in the process.

 

[sciondan]

When you got the head done was the valve guides changed as well?

 

[havlc2u]

When you got the head done was the valve guides changed as well?

Yeah it was a full OEM rebuild. Just strange that it started after about 65 miles on a total top and bottom end rebuild. Compression is 180 across all 4 cylinders WOT
I don't have a leak down tester. No air compressor to run one is the reason why.
I am pretty sure it is oil burning because it smokes a steady stream once warm and heavy smoke on shifts and acceleration. Thought it was turbo at first before seeing the oil in the exhaust port on cylinder 2 then I found the oil on top piston 2.


Just trying to figure out if I need to replace the valve stem seals or if I am going to have to pull the whole engine apart and do something with piston 2.


Any insight would be great thanks.

 

[007jimmy]

Did you get the full rebuild from the same place? If so ask for a refund and take your business elsewhere...
Looks like leaky valve seals is your oil burning problems from the pic with the exhaust ports. It must be bad if its dripping on your pistons...

 

[bryanwheat]

That looks a little on the extreme side for just a valve seal. Exhaust seals will usually not cause oil in the actual cylinder, and it also won't leak under a load like it will on startup.

 

[havlc2u]

That looks a little on the extreme side for just a valve seal. Exhaust seals will usually not cause oil in the actual cylinder, and it also won't leak under a load like it will on startup.

I believe you are correct after taken a closer look and a light inside the cylinder I found that it looks like a lot of oil but it's actually not So I will continue to replace the valve stem seals for the leak into the exhaust manifold

 

[buhay6]

Ha the 5m in my supras doing the same thing, I was suspicious of valve seals especially when I tore into my intake system ### it had extreme carbon build up in it. Let me know what you all find, may be a different engine in my case but same principle.

 

[dalesmitsu]

Would you guys trust, valve seals on ebay?

 

[livedsm4g63]

Just order them from extremepsi. They are like 15-20 for the intake and the same for the exhaust. You'll have to take of the cams if I'm not mistaken. Unless you can loosen them up the caps a little while you do each of them, as the cylinder has pressure in it. Or do you just plan on taking off the head?

 

[1983gsp]

You have to pull the cams, springs, and retainers to change valve stem seals. The most accepted way is to remove the valve train one cylinder at a time while shooting compressed air into the cylinder to keep the valves from falling down while you remove the retainers and springs.

Option 2 is to remove the head and disassemble it to change the stem seals.

Option 3 is an old timers trick. If you don't have compressed air, remove the spark plug and with the piston at bottom dead center on its way to the compression stroke. Feed some clean 1/4" string into the spark plug hole. About 10 or 12 ft, and leave about 6" of string hanging out of the head. Then roll the crank around until it stops. Lock the crank in position by wedging the tool used on the crank against the frame or tie it securely so it doesn't move. The valves are locked into position by the string pushing up on the valve head. Now you can remove the retainers and springs without the valve falling down.

 

[BogusSVO]

Is it smoking all the time? or just start up and long idle times stop lights and such?

 

[havlc2u]

It's smokes all the time lightly. No smoke until warm then Heavy under acceleration.

 

[BogusSVO]

Smoke all the time is rings or maybe turbo.

Have you done a BSE? If yes.. what is the oil pressure you see..
Cold idle?
Warm Idle?
Cruise/3000RPMs?
WOT?

Have you ported the OFH?

Where is the turbo being fed oil? Head? OFH?

 

[havlc2u]

Smoke all the time is rings or maybe turbo.

Have you done a BSE? If yes.. what is the oil pressure you see..
Cold idle?
Warm Idle?
Cruise/3000RPMs?
WOT?

Have you ported the OFH?

Where is the turbo being fed oil? Head? OFH?

Yes have BSE
Cold is 30
Warm is 15
3000 rpm 45
WOT Around 60 - 75

These are estimates since the car started smoking it has been sitting.

No port on OFH
Turbo fed from OFH


The reason for not thinking it is the turbo is there was no shaft play at all. Then all the oil that looks to be coming from the Cylinder 2 exhuast port. Unless the oil is leaking anough to force oil back into the exhaust port like in the picture.

 

[BogusSVO]

Well, the oil pressure sounds low for having a BSE and not porting the OFH, normal reports show much higher with that set up.

Search and see...

Oil squirtes still in? or was it a 1g NT block to start?

Is there an aftermarket oil gauge installed?

 

[havlc2u]

No oil squirters I believe it was na before and it does have after market gauge. It just started doing it after 70 miles on the rebuild.

 

[BogusSVO]

Check the head build recipt, and see if they did change the guides.....

If they did, and they gualleded up on the removal, you may be sucking oil past the OD of the guide.

 

[havlc2u]

Check the head build recipt, and see if they did change the guides.....

If they did, and they gualleded up on the removal, you may be sucking oil past the OD of the guide.

Ok that makes since. I will check it once I get home and see what it says. I might have to have the head reworked again They said it was a total OEM rebuild. I should of stuck with my 1g head that I know was build correctly

 

[havlc2u]

Ok so from what the builder said the guides where not replaced. So wondering would a turbo make the oil go up into the exhaust manifold. Also if the seal is leaking under higher pressure wouldn't it make it leak more. There is oil in the down pipe.