nj_eveohviii

im curious if anyone had a suggestion what this could be i pulled my 2 plugs by fire wall i think its 5 and 6 and they were covered in oil alot others were fine just those 2 my car is throwing p0300 code p0301 bogging out valve cover gasket? but that seems too easy lol if anyone had this problem lmk thanx

sracura

iTrader: (4)

Op, research oil in spark plugs. it will have your answer.

2004Black350z

iTrader: (37)

Prepare 4 a new engine

terrasmak

iTrader: (8)

The oil was on what side of the plug?

nj_eveohviii

i pulled plug the entire plug and my socket had oil on it

sradenton

iTrader: (19)

To me sounds like spark plug tube seals. Post pics

seymore4

iTrader: (27)

OP this is a very common problem, you need to replace the valve cover

travlee

iTrader: (8)

spark plug tube seals???? wtf SMH

seymore4

iTrader: (27)

???? You've never heard of the spark plug tube seals failing on a DE and having to replace the valve cover? Pretty common problem...

travlee

iTrader: (8)

that is the valve cover gasket....

seymore4

iTrader: (27)

.......

travlee

iTrader: (8)

ooooooooh, i see the rings that you are talking about..... never knew about those. but do they really go bad or more the gasket?

seymore4

iTrader: (27)

The spark plug tube seals are built into the valve cover, you have to replace the whole thing. When they go bad they start leaking oil into the spark plug tube, pooling and eventually covering the plug and bottom of the coilpack. I've seen some so bad that when the coilpack was removed you could barely see the top of the spark plug.

taywan

iTrader: (53)

Ya time for some new valve covers

sradenton

iTrader: (19)

If it is the spark plug seal Just replace the valve covers or have R@D factory fix them or buy the kit and do the diy.

travlee

iTrader: (8)

i stood corrected and acknowledged it....

goose691

I have the same issue, it's not a big deal, just you valve cover gaskets that go around the spark plug bays, not to big a job, ill be doing mine sometime this week, I have a nice pool of oil in the #6 plug bay

HK350 Z

I just had the same thing during a tune up , yes you have to buy both valve covers to replace the spark plug tube seals, each cover was about $215.Mine was just a little oil...

2004Black350z

iTrader: (37)

Rebuild

saywat?

hit up this guy "G35TSS" on g35driver maybe hes on here too idk. they sell same stuff as R&D except better service and communication