Oil in the turbo intake
06-19-2003, 06:00 AM
#1
Drifting
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Oil in the turbo intake
Hi All,
I have had a problem with a white/blue(?) smoking car over the last 2 days, and also an amount of stumbling when accelerating under load, and as such I wanted to check water/oil problems. I've ripped out the plugs to examine for a wet piston...... don't have one, and also don't have that milky feeling!. Once I took the MAF off, I noticed that there was a lot of oil (about a teaspoon) gathered in the turbo intake.
Now to me, that Oil could come from a few places:
1. blown rings - would then lead to a high content of oil in the breather hose, but that's quite dry!
2. Blown oil channel on the head gasket - would probably give me a wet piston / fouled plugs, which I don't have!
3. Turbo Bearings or seals - the old blow-by issue!. I do have a large amount of radial play (1-1.5mm), but I'm just checking with Kokeln now to see if that is normal.
Can anyone suggest other avenues for me to pursue to fix my car!!!??
Thanks
I have had a problem with a white/blue(?) smoking car over the last 2 days, and also an amount of stumbling when accelerating under load, and as such I wanted to check water/oil problems. I've ripped out the plugs to examine for a wet piston...... don't have one, and also don't have that milky feeling!. Once I took the MAF off, I noticed that there was a lot of oil (about a teaspoon) gathered in the turbo intake.
Now to me, that Oil could come from a few places:
1. blown rings - would then lead to a high content of oil in the breather hose, but that's quite dry!
2. Blown oil channel on the head gasket - would probably give me a wet piston / fouled plugs, which I don't have!
3. Turbo Bearings or seals - the old blow-by issue!. I do have a large amount of radial play (1-1.5mm), but I'm just checking with Kokeln now to see if that is normal.
Can anyone suggest other avenues for me to pursue to fix my car!!!??
Thanks
06-19-2003, 09:09 AM
#2
The play in your turbo is a concern, however, a certain amount of oil can be expected in the intake after so many years of use. How much smoke are you talking about?
Regards,
Regards,
06-19-2003, 09:44 AM
#3
Drifting
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Not a hell of a lot of smoke, but I'm worried the stumbling is a direct cause of oil somehow affecting the air/fuel system, and maybe causing some heavier problems. It's also never smoked before the llast couple of days (i would have expected a more gradual 'smoking' if it's just down to mileage.
I've also considered in the meantime that it may have something to do with worn valve guides. As I say, the oils consumption is quite high.
I'm just praying that, in a way, it is just the turbo or guides, and not the piston rings!
I've also considered in the meantime that it may have something to do with worn valve guides. As I say, the oils consumption is quite high.
I'm just praying that, in a way, it is just the turbo or guides, and not the piston rings!
06-19-2003, 02:33 PM
#6
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Found the problem.... sort of! Unfortunately, I'd stripped too much down to do a leak test last night, but I've spotted a shed load of oil in the No.1 inlet valve. The head's coming off tomorrow morning, and will be rebuilt. I'll also do a major check on the valve/seal to make sure that's the problem, and not the rings on No.1. keep your fingers crossed! I'm gonna leave the turbo for now, as I think that's not the main problem any more!
The afr was reading normal throughout, and I always use mobil1 (5w40 I think!) regardless of the weather!, but thanks guys!
The afr was reading normal throughout, and I always use mobil1 (5w40 I think!) regardless of the weather!, but thanks guys!
