lubrication plumbing

[tyrannix]

ive been learning about my engine alot latly

now ive learned that those hoses at the tops of the valve covers are for ventilation (to an oil catch can)

so how do the cams get their lube? i dont remember any other hoses going up there... but its been about 6 months since i stripped the engines. and where else (besides the turbo obviously) does oil need to go?

im guessing here-> oi pump -> both cam chambers-> drains down to teh oil squirters on teh crank-> back to teh oil pan

also oil pump -> turbo -> oil pan

is that about right?

ok.. after taking a look at my extra head, the intake valve cover has another inlet at the back and angled down, thats gotta be for oil.but the exhaust side doesnt have that... how does the exhaust cam get lube?> does it travel over from the intake one somehow?

also, another question. if making new oil lines, will making bigger (thicker) lines reduce oil pressure? im going to add a remote filter and cooler at some point, but im thinking that thicker lines, coupled with that other stuff will help increase oil capacity, and make it cooler (i still havnt found a big oil pan for a CA... is it necessary? i never had a problem before i stripped the silvia, it was running 13 psi on what i think is an s14 t28, and the temp never went above half on the stock gauge... stayed pinned just below half actually) *BUT* im planning on running alot more boost, about 2 bar ... in teh future, after i get a bigger GT ball bearing turbo

doh, back to the original question> am i spot-on about the oil plumbing, or completly off?

[lifelicksballs]

dude, where you getting this info its good stuff and i need to learn everything and anything about the hoses around my engine in order to swap it in properly

[tyrannix]

dont take nearly any of what i said as fact, thats why im askingif anyone else *knows*

this is just how it would make sense to me.... except for how the exhaust cam gets oil.... still cant see that

and once i get it all right with the old hoses, im planning to swap in braided stainless

well, im starting on assembly... just the big parts... crank, pistons, block, head, cams, valve covers, oil pan... get everything torqued to spec .... except the head... im still waiting on my oil pump to get here, so i wouldnt be able to put on the timing belt yet

but anyone with basic lube flow info, please chime in

[sdtouge]

if you look on the bottom of the valve covers, there are like these little ceaves lol that have holes, i think oil is shot up through the head (60psi lol could do that) into these caves, then its driped over the cams. really simple. i dont think thats all it gets for the head, im just thinking that is part of t.

[c-rad]

The cam journals are oiled directly. Remove one of your cams and look, there is an oil passage for each one. And the lobes are lubricated by the lifters.

[float_6969]

The cam journals are oiled directly. Remove one of your cams and look, there is an oil passage for each one. And the lobes are lubricated by the lifters.

He's dead on here. If you don't have a FSM downloaded yet DO IT!!! In there is a diagram showing the flow of oil within the motor. That should answer all of your questions.

To all noobs, we love you! But please, download the FSM, read it, memorize it, make love to it if you have to, I don't care. But the more you read from it, the better off you will be. If you can't download it, I would be more than happy to burn a copy for you. Send me a CD with return postage and it's all yours! I don't care what it takes!!! I'm not mad, and I'm not banning anybody, I just want you guys to help yourselves a little bit more. You'll be SOOOO much better off for it.

[/rant]

Thanks

[tyrannix]

i learned alot today for one, i did find the diagram... i was expecting a picture-with-hoses type diagram, and its an algorythm type chart

two, i assembled the head, and block ... need some plastigauge to check bearing clearence before i put the head on tho

and while looking at the head (freshly cleaned) i did see the squirters that lube the journals ...

and for everyones information .... going to office depot or staples will cost about $60 to print out the whole FSM .... if you drop the automatic transmission section out, the whole thing will fit in a 3" binder with each page (double sided print) in its own protective sheet its pretty thick too, you can save a few bucks by not even printing that section

but yeah... the more i read the FSM, the more things make sense (and making sense is a really good thing when youre basically rebuilding a whole car)besides a good pair of gloves (for working on the car, you pervert) the fsm is one of the best investments ive made .... really.. having the reference *in the garage* with you is invaluable.... especially for those of us who have limited garage time

no running around, looking up torque specs, or tightening order, or anything

do yourself a favor and at least download it, and keep a CD with it in your toolbox (or glovebox) ... and if youre a computer geek like me, put it on the portable harddrive that you take with you to work, or your thumb-drive

[float_6969]

You're one up on me. I printed it all off at work, but it's just in a plastic bag. I really gotta do something about that...

[knightrider]

just to address your original question, the hoses on the valve covers are to vent positive crankcase pressure not carry oil, if you have oil in those lines, its not good, a little is ok, but alot means trouble.

[tyrannix]

after studying the lubrication diagram in the FSM (yes, it does exist)

everything is alot clearer now... the only oil that actually leaves the engine proper is for the turbo

and the vents on the top of the valve covers are to release gas--- which i will route both into an oil catch can.. then into the plenum so as not to interfere with the blow-by mafs

is there a vaccuum diagram in the FSM as well? i looked again for it and still couldnt find one. please tell me there is one, and im just blind

this does leave the question, whats that other attach point on the intake valve cover? the way it sits, id think it was an oil drain of some type, but it isnt... and the vent happens on the top attach point

whats the extra hole on teh intake valve cover for?

[F3600]

look at EF-EC6 for the vacuum diagram

[knightrider]

the second hose on the side of the intake valve cover near the back is a oil drain so oil doesnt accumulate in the valve cover.