Oil Leak!

[Antsmash]

Hey guys, (1997 R33 GTS25T)

I had a bad oil leak in my engine bay recently so I decided to track down where it's coming from.

So I gave the areas a degrease etc. Went for a blat around the block a couple times, and looks like I can see where there are two link. Which match up with oily areas.

Am I right in saying this is from the Cam / Rocker cover? This is just a rubber gasket with the half moon bits as well correct? (What the interwebs told me )

Another question I wanted to ask was the bolt and rubber washers (Especially the washers) are looking tired. Perhaps the last owner over tightened these? Where can I get more?

I will probably just order new gaskets anyway for piece of mind. Your guys options will be much appreciated

Initially thought it was from that connection to head, but looking at this looks like it is coming from the join first then down onto it.

This is back of engine that looks like it has leak too

Showing worn rubber / very slight slow leak on this side too

[MatthewT85]

i did my rocker cover gasket not too long ago, was leaking a little as well, not enough to drop down the drive way just enough to look messy, i bought mine from Taark https://www.taarks.com/

you need two gaskets and two half moons(for each rocker cover, piece of piss to install too

as for the bolt and washer, maybe ask him if he stocks them too, i think he sells sr ones so might be able to help you out

[AMR33]

Yeah looks like the rocker cover gaskets. They do leak when they are old and tired. Its an easy job as MatthewT85 said, but surprisingly so many people ignore it. I had a leak on my RB20 similar to yours, changed the gaskets and half moons and she was sweet. You should be able to get the rubber bits from Nissan, I dont think they will be too expensive. If not, there are after market parts for anything these days just have a look on the net.

[Mick]

yes the 2 cam covers are about $70 and the 2 moons were pretty cheap but those rubber washer things are 2 metal washers with a big rubber section between them, they look surprisingly big and tall when you buy them new but they compress down, i didnt replace all the washer things cos it would have cost way too much cos you need quite a few of them as you know

[Mick]

oh and i think you need a lil silicon sealant for that back moons to help them seal to the gasket, im pretty sure thats what the nissan engine manual says as well, i dont know why the hell they didnt make the half moons attached to the main cam cover gasket for, it would have been so mush simpler

[MatthewT85]

oh and i think you need a lil silicon sealant for that back moons to help them seal to the gasket, im pretty sure thats what the nissan engine manual says as well, i dont know why the hell they didnt make the half moons attached to the main cam cover gasket for, it would have been so mush simpler

yep makes no sense, the sr20 gasket has the half moons and gasket in one piece...

also i think when i did mine, i put gasket glue on the 'curved' edge of the half moon, i dont think i put it on the flat edge

it was about a year ago now though, so not 100%... there are guides going around though