Oil in Port
#1
Oil in Port
Changed spark plugs a few days back and noticed 3 of the 6 ports with oil buildup.
the plenum was removed back in December to replace Tran, and recently for the Catyl (mechanics)
someone tighten-down the plenum to about 40pounds when they should only be snug. The plenum gasket had oil residue.
where, what could be the cause? Anything to pay attention to? Am suspecting the Plenum to be of age as some lines on the inside seemed cracked
max has 258k miles
thoughts?
PCV? Changed it once about 120k
the plenum was removed back in December to replace Tran, and recently for the Catyl (mechanics)
someone tighten-down the plenum to about 40pounds when they should only be snug. The plenum gasket had oil residue.
where, what could be the cause? Anything to pay attention to? Am suspecting the Plenum to be of age as some lines on the inside seemed cracked
max has 258k miles
thoughts?
PCV? Changed it once about 120k
Last edited by Les7311; 06-11-2022 at 06:31 PM.
#2
If the oil is nice and clean under the plemum, is just some residual assembly oil used to help with the seal. If it is black there may be an issue. So, what color is it?
Oil in the tubes is caused ny the seals leaking in the valve cover. Get a new set of valve covers and a bit of black permatex (there are a few places you have to add it to the gasket in some of the corners)
Oil in the tubes is caused ny the seals leaking in the valve cover. Get a new set of valve covers and a bit of black permatex (there are a few places you have to add it to the gasket in some of the corners)
Last edited by LtLeary; 06-11-2022 at 11:20 PM.
#3
If the oil is nice and clean under the plemum, is just some residual assembly oil used to help with the seal. If it is black there may be an issue. So, what color is it?
Oil in the tubes is caused ny the seals leaking in the valve cover. Get a new set of valve covers and a bit of black permatex (there are a few places you have to add it to the gasket in some of the corners)
Oil in the tubes is caused ny the seals leaking in the valve cover. Get a new set of valve covers and a bit of black permatex (there are a few places you have to add it to the gasket in some of the corners)
No leak noticed at the valve covers, did the gaskets about 150k ( now at 258k)
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