Hi

I have recently replaced the spark plugs on my Z.
When replacing the plugs, I found that there are engine oils in driver's side spark plugs well.

I have searched on the forums and seem like it is a common issue. It can be solved by replacing the gasket.

My question is, if I don't replace soon, will it cause any problem?

Thank you.

 

Here you go...
https://my350z.com/forum/maintenance...plug-well.html
and I would get anything dealing with oil leakage checked out asap.

 

is it just the driver side rear ? if its just that one i wouldnt really worry about it..very common..if u have oil in a bunch of them you might wanna replace the gasket

 

i got the same issue while replacing my plugs around 25k. i bought all the gaskets to dyi and never did replace them. i do check the oil for leaks periodically, but so far it has not been an issue.

you can buy all the gaskets to dyi for about $100...or replace the valve covers at about $175 a pop.

good luck with it

 

if u are going to fix it far as i know you have to buy the whole valve cover and cannot just buy the gasket..

 

r /d factory in el monte does the repair on your valve covers for 160 dollars. Ihad mine done.

cheaper then 200 a side for valve coveres.. btw OP the oil is not coming in from the valve cover gasket.. its from the seals in the top of the oil tubes.

https://my350z.com/forum/engine/5128...asket-set.html

 

Yes Driver side, all three spark plugs have engine oil on it.
and the one close to windshield have the most engine oil.

 

Thank you everyone.

After I replaced the spark plugs. My Z still runs good so far without any problem.
I will continue to check the oil level, hopefully it's not serious oil leakage