Cam Cover Fittings!

[PM-R33]

Hey Guys,

Need some quick help here, should be easily answered by someone. Im just in the process of doing a bit of engine work on the car while its off of the road and i've nearly finished but have a small problem. Im fitting up an oil catch can to the RB25 cam covers because i dont want oil blow by going through the new gear (I know how to hook it up correctly so this isn't the point of this thread before u start flaming me )

What i want to know is how everyone has fitted aftermarket fittings into the cam covers??

I rand around to a couple of places and they all told me that they only make fittings with threads, no smooth edges..

The standard fittings have a smooth edge and just slip into the covers, however i dont want to use these standard fittings but something like some speedflow fittings or something. However i think that all of these aftermarket fittings have threads on them, so my main question is, has everyone made threads in their cam covers to fit different fittings for catch cans?? Or do they make fittings with a smooth thread??

Hopefully i have made sense of what im trying to ask.

Thanks guys

Phil

(I've attatched a photo but im pretty sure everyone knows what i mean)

[Adriano]

You could drill and tap them and fit a speedflow adapter, drill them out to at least 1/2in bsp"(prefferably bigger)

[nizmo_freek]

Its easy enough, (im still deciding if i should use fittings in my cam covers, i would like to but they are so exspensive!), if i was going to do mine i would use the following, 2 x -10 male / 1/2npt (so the 1/2npt side would go into the cam cover and the -10 side would be left hanging out of the cam cover, then get 2 x -10 90degree fittings which will obviously screw onto the -10 cam cover fitting.

You would possibly need to take the cam covers off and take them to a engineer or someone similar and get them to thread the holes the same size as your male/male fittings, they may also need to remove the cam cover baffels to thread the holes and make sure no metal fillings/threads get stuck in the baffels.

I would just get the spare hole in the side of the cam cover (the stock pcv valve go in here) blocked off, either get a little bung made up to replace the pcv valve, or get the hole welded up etc etc.

By the way, im not quite sure which sized fittings you would need to go into the cam cover, i was using 1/2npt as an example, but that might possibly fit.

Edited April 13, 2007 by nizmo_freek

[PM-R33]

Cheers guys, yeah thats the main idea i was thinking and seems to be what every one on here has done (looked at a lot of photos of engine bays and yeah its what most people have done).

Only thing its a lot of mucking around just to hook up an oil catch can...hmmmmm still a bit undecided but i might have to get them threaded.

Much appreciated guys.

[T04GTR]

cut them in half and use a weld on fitting. to steel not alloy. that way they just bang in. or and its alot cheaper

[PM-R33]

HMMMM thats not actually a bad idea, i think u may be onto something there......

[PSI Parts]

Mine are welded on, getting them smoothed over and polished more while they were off. I'll have some more pictures of them when they come back from the polisher this week.

[jnr32r]

How do the std fittings come off?

I tried pulling them off but all they did was spin...

Mayb I hadnt eaten my weetbix...

[series2r33]

Why not just use rubber hoses? I didnt think its was that much of a high pressure to require braided lines, or am i wrong

[PSI Parts]

Braided lines are not just for use with high pressure applications. They provide a protective shield for the lines themselves, prevent bulging, looks good, extends the lifetime of the hose and will not allow the hose to crack and leak like some normal hoses do. This is even more important when your dealing with your engines life blood in a high performance car. Hence the reason, I'm going to replace the majority of my hoses with braided equivalents.

[RRob]

Tap rover covers.

Or Buy an adapter fitting and have the thread machined down to the size of the hole and bash them in.

[PM-R33]

How do the std fittings come off?

I tried pulling them off but all they did was spin...

Mayb I hadnt eaten my weetbix...

Since they are smooth and dont have an actual thread, once they start spinning just pull them upwards and should slip straight out