Oil Leak!!!!

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Nismo300zx
Posts: 57
Joined: Wed Jul 29, 2009 8:50 pm
Car: 1990 300zx Twin Turbo

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I have an oil leak...pretty upset... like when i first start the z (1990 Twin Turbo) my oil pressure shoots up which is normal but then thats where i get most of my leak....the oil leak is near the oil filter and near the right turbo im not sure if a turbo oil feed is loose or not...is there anything i need to tighten up??? i can post pics from the leak HELP would be appreciated


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Zwicked
Posts: 3133
Joined: Mon May 14, 2007 6:19 am
Car: 1990 300 ZX tt, 1990 240SX

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Could be the turbo line, but also might be the oil pressure sender or the oil filter tree. Get it up on a hoist or blocks so you can see where it's coming from

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95FairLadyZX
Posts: 330
Joined: Sun Jul 20, 2008 11:51 am
Car: 95 300ZX 2+0 NA
Location: Long Beach, CA

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Hey buddy sorry this is off topic but is your z white? I think I saw you today, I live in paramount too!

Now that I think of it Ive seen your car more than once.

Nismo300zx
Posts: 57
Joined: Wed Jul 29, 2009 8:50 pm
Car: 1990 300zx Twin Turbo

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hahah NO you didnt see me, you saw my friends z32 which is this one and i own this one We both live in Paramount and both cars are 1990 Twin Turbo and we are pretty sure we have seen you around as well we should have a Z MEET!

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TTZ32
Posts: 51
Joined: Thu Sep 24, 2009 9:54 am
Car: TT 90 300ZX

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yea i believe i saw today around 10:50... hey we should have like a Z meet or something

Maxipads
Posts: 3
Joined: Tue Dec 08, 2009 11:21 am
Car: 1990 Nissan 300zx

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you guys live close i live in bellflower and i have a oil leak as well i think it could be the lower cam covers! i just got this car on sunday

ChromeSkull
Posts: 10
Joined: Wed Jul 14, 2010 7:09 am
Car: JDM 300zx TT 2+2

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Sorry for the Thread revival (couldnt PM so i resorted to this)

I know it was over a year ago when you had this problem, but do you remember what your leak turned out to be? (if you can remember lol)
My car has also developed this leak and unfortunately oil is spray allover like an oil grenade above the filter... makes it a bit hard to locate. Especially like you say it only happens under high pressure.
I may have to make some sort of cone to go over the filter.
so if oil is under the cone the filters to blame and if its on top one of the many other pipes is to blame.... fun.

marty1mc
Posts: 733
Joined: Sat Jan 16, 2010 1:51 am
Car: 1990 Nissan 300ZX TT - Z owner since 2003
Location: Fuquay Varina,NC

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There is an O-Ring and seal from the oil tree to the block. It tends to develop leaks. If this is your issue, see the link below for the drawing of the parts and a way to order them...

http://www.courtesyparts.com/300zx-part ... 4_899.html

ChromeSkull
Posts: 10
Joined: Wed Jul 14, 2010 7:09 am
Car: JDM 300zx TT 2+2

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Thank you Marty for that information. Ill take a closer look after cleaning it up again...
Ill see if i can be cheaky and get it over the Lorry Pit again to look for it. Makes it easier than on wood or bricks.
Plus ill feel safer not having near 2 tonnes over my head on bricks :D


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