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Annoying Oil Leak

TriniGT

By TriniGT,
in Engines & Forced Induction

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TriniGT Experienced

TriniGT

Posted
Posted

Hi people,

I have a friend that has an RB20DE Neo in a Laurel Medalist and recently has developed a really bad oil leak on the intake side of the head. It appears to be coming from the intake cam gear area. Is there anything that can be replaced other than replacing the entire neo intake cam gear? Let me know as his entire engine bay is being constantly washed with oil.

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N-DAWG Mentor

N-DAWG

Posted
Posted

As Eug said, check cam seals.

How many km's on the clock? When was the last major service and did he get the cam seals changed at the same time?

If the answer is on or more than 100,000kms, and it hasn't had a major done, then I'd be getting it booked in.

Major service is expensive, but not as expensive as a snapped timing belt! I have heard of one case (not Skyline specific however) where a leaking cam seal meant that oil was getting on the belt, and slowly wore it away and the car ended up with over 2G'z of engine repair.

TriniGT Experienced

TriniGT

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The thing is he got it serviced twice recently. The first time after he got the car back it would idle weird. Then he took it to another garage and they found the problem and at the same time replaced the timing belt, cam seals and cam cover seals as there were some leaks but even after changing that realized that there is oil coming from behind the intake cam gear, not sure exactly where but can it be from anything besides the cam seal, something in the intake cam gear itself that may need replacing? Last garage also overtightened the CAS and the idle would hunt, only to realize that the cam gear cover was damged and the spacer for the CAS was missing on one of the bolts. Anyone with a similar problem and remedy?

N-DAWG Mentor

N-DAWG

Posted
Posted

Sounds like there's a problem with the way they changed the seals if it's leaking from the same spot.

Where abouts is he located? I'd be taking it to a reputable workshop that has experience with Skylines. They'd probably figure out the problem straight away.

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