I recently rebuild my 94 gsr motor back to stock specs had block and head decked and milled. So it has new rings bearings seals etc. I had it running and it had a high idle and it seems like my intake manifold sucked up about 2 quarts of my oil I changed my Pcv valve. And I can't figure out what's the problem, anyone have any idea.

 

i just did the same on my 97 GSR engine and it sucked down about the same amount of oil.

took me 3700 miles for the oil feast to stop. now that it has 8500 it's only lost 1/4 of a qt.
and will be do for a change here soon.

you will need to use break-in oil and it will take some time for the rings to seat to cylinder walls.

if you have over 6000 and its still eating 2 qt of oil then you have a problem

 

Ok I hope that's what the issue is. So in other words the rings aren't seated yet so oil is just passing the threw them and into my intake ports an possibly my exhaust ports correct?

 

Oil getting past the rings would burn and go out the exhaust ports, not into the intake manifold.

Are you burning oil, are the plugs oil fouled? 94

 

I took out the spark plugs and they aren't full of oil but they are somewhat black but not a lot. Like I said they aren't wet of oil. What can cause my intake manifold to suck up that much oil? Reason motor was rebuilt was because I bought the car cheap with a cracked block from overheating so I had an extra gsr block laying around and had the machine shop deck it etc. and had the head checked and replaced seals and guides and milled it. Possible that the intake is gunked up and causing it to suck up the oil?

 

Are you sure it is motor oil, are you down on motor oil?

Are you getting blue smoke from your exhaust, either way, if oil is getting past the rings, in to the combustion chamber or it gets in from the intake manifold, it will burn.

I can think of only one way oil, [motor oil] is getting into the intake manifold, it must be coming from the PCV, I would recheck anything to do with the PCV valve. 94

 

Yea it's motor oil for sure I was full on oil and started it up and after a few minutes I shut it off an checked my oil and I was down to the fill mark. No blue smoke out the exhaust. I checked my lines for my Pcv and everything looks fine and replaced Pcv as well.

 

That is a lot of oil, are you sure you put in the correct amount to begine with?

If that amount of oil was getting into the intake manifold you should see smoke from the exhaust, any oil on the ground under the engine?94

 

Yea I put the right amount and since I didn't have my intake on my car I saw oil starting to drip from the tb after i shut it off so I checked and opened the the butterfly on the tb and oil started to slowly come out so I left a rag in over night and the rag was all wet of oil in the morning. No oil on the ground I have white smoke but I think that's due to when the previous owner had cracked the original block. I assume its water that's still in the piping because my water level is fine and no water in my oil etc.

 

you have a pcv issue. id look at all ur hoses. check the breather on the intake and see if there is alot of oil coming through there. if not check the breather box and all hoses on the back of the block.

 

I agree with above,
It must be an issue of inproper routing of the lines as vacuum from the intake is pulling oil out of your crankcase,

Or possibly overfilled?

 

I looked at my hoses and they all seemed hooked up rite but how many hoses are connected up with Pcv system?

 

I'm sure I didn't overfill it because I put the exact amount needed before start up then after it ran I was low about 2 qrts and that's when I noticed it in my manifold.

 

Vacuum lines... http://www.acuraautomotiveparts.org/...s=&view=normal

Breather chamber... http://www.acuraautomotiveparts.org/...s=&view=normal 94

 

Thanks ill have to check when I get home only thing is I don't have the vacuum tank when I bought my car it didn't come with it. Does it matter if I have it or not?

 

Yes, it is an important part of the vac. system.
Is anything else "missing"? 94

 

Ok so I checked everything last night nd all the Pcv hoses are correct and the only thing missing is the whole vacuum tank with all it's lil components...could that be causing my high idle and my intake to to suck up my oil?

 

Well the tank is $28 why not put one in? While you’re deciding on that why not hook a vacuum gauge up to the manifold’s inlet from the hose that’s coming out of the bottom of no 8 in fcm’s vac diagram and see if you have around 18 Hg in vacuum (that’s typical and what my GSR has @ idle). You could also check for vac leak around the manifold using carb cleaner, water, or propane.

 

Could be, at higher RPMs there is no vacuum, that is why the canister is there, like a reserve tank of vacuum, your secondaires will not work properly, [stay open or closed, can't remember which].

Either way, and as mentioned, you should have it, so install one and see if it also clears up your other problems. 94

 

Ok I see what your saying what if I throw a different intake manifold that doesn't have the secondary butterflies? Reason I'm sayin this is because I have a skunk2 intake manifold that I was goin to put on my other gsr, but that one is being worked on at the body shop so if I throw this manifold on would i still need the vacuum tank?

 

So even with the skunk 2 intake manifold ill still need the tank correct?

 

the tank is for the secondaries only. you can remove it.