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What's your opinion on what's happening here?

Kinarfi

By Kinarfi
in Joyner UTV SxS Forum

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Kinarfi

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We all have a tube from the valve cover to the intake manifold and I think we all have a larger tube from the valve cover to somewhere else. On mine, the larger tube went to an oil separator that was vented to atmosphere and drained to the oil pan. I changed mine because it was blowing oil out and all over the separator. After my ring job, the larger tube goes to a home made oil separator that drains to the oil pan and vents to a "rubber glove", at the moment, other wise it would go the intake tube after the filter and before the manifold. When the engine is at low RPMs, all the air is sucked out of the glove, when I'm running at speed, the glove blows up to tight, but is not vented. Here's what I think: The air is sucked out at low RPMs by the manifold draft and blown up while running because manifold draft drops when the butterfly is open and the pressure to blow the glove up must be coming from blow by.

What you think is happening

Kinarfi

2165377640104282158OhkkjA_th.jpg

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ricksrb Mentor

ricksrb

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We all have a tube from the valve cover to the intake manifold and I think we all have a larger tube from the valve cover to somewhere else. On mine, the larger tube went to an oil separator that was vented to atmosphere and drained to the oil pan. I changed mine because it was blowing oil out and all over the separator. After my ring job, the larger tube goes to a home made oil separator that drains to the oil pan and vents to a "rubber glove", at the moment, other wise it would go the intake tube after the filter and before the manifold. When the engine is at low RPMs, all the air is sucked out of the glove, when I'm running at speed, the glove blows up to tight, but is not vented. Here's what I think: The air is sucked out at low RPMs by the manifold draft and blown up while running because manifold draft drops when the butterfly is open and the pressure to blow the glove up must be coming from blow by.

What you think is happening

Kinarfi

2165377640104282158OhkkjA_th.jpg

Is it possible the glove is blowing up just because the air is warm?? just a guess.

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Guest Lenny

Guest Lenny

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Posted

We all have a tube from the valve cover to the intake manifold and I think we all have a larger tube from the valve cover to somewhere else. On mine, the larger tube went to an oil separator that was vented to atmosphere and drained to the oil pan. I changed mine because it was blowing oil out and all over the separator. After my ring job, the larger tube goes to a home made oil separator that drains to the oil pan and vents to a "rubber glove", at the moment, other wise it would go the intake tube after the filter and before the manifold. When the engine is at low RPMs, all the air is sucked out of the glove, when I'm running at speed, the glove blows up to tight, but is not vented. Here's what I think: The air is sucked out at low RPMs by the manifold draft and blown up while running because manifold draft drops when the butterfly is open and the pressure to blow the glove up must be coming from blow by.

What you think is happening

Kinarfi

2165377640104282158OhkkjA_th.jpg

I think your right, Then again I may be wrong. The crankcase does get some blowby no mater what because there is no thing as a perfect sealing piston ring. Thats why there is a tube going to the intake, to get rid of this by sending it back to the combustion chamber. Im not quite sure what the difference is between this tube and the one that is susposed to send oil mist to the canister which recondenses it and drains it back to the oil pan. I'm thinking that the loscation of the larger hose is like in refactory system (but different) in that it picks up from a position in the head cover that has more mist and the other tube comes out the top. I have eliminated the tube comming out of the top because of the supercharger.but still have the canister. As far as the glove goes, I suspect that the pulsation of the air pressure in the intake manifold is pumping it up. I'm thinking that the kinetic energy of the air coming into the intake manifold is ptting it at a slightly higher pressure then the pressure in the crankcase but then when the engine is sucking the pressure is slightly less then in the crankcase. Now I'm going to guess at this one. A PVC valve that we don't seem to have unless it is in the canister allows the air to get out of the crankcase but not go back in. If there is a PVC valve in the canister, it could allow the glove to blow up but not deflate except to slowly when at higher engine speeds. I'm now 100% sure of what I'm saying here so maybe someone else can chime in.

Lenny

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Leadfoot Explorer

Leadfoot

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Thanks Rick, been watching the forum for a while now, so i feel like i know everyone! lol!

I agree with you Kinarfi, Its a lot of pressure, but you also cant judge the pressure of the glove at burst, oil breaks down latex. Hell if i were you I'd put a breather cap on it and ride.

BTW: Totally off-subject but how are you guys going about re-locating the headlights on these things, I love my Trooper but the darn headlights seem so out-of-place!

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Kinarfi Veteran

Kinarfi

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Thanks Rick, been watching the forum for a while now, so i feel like i know everyone! lol!

I agree with you Kinarfi, Its a lot of pressure, but you also cant judge the pressure of the glove at burst, oil breaks down latex. Hell if i were you I'd put a breather cap on it and ride.

BTW: Totally off-subject but how are you guys going about re-locating the headlights on these things, I love my Trooper but the darn headlights seem so out-of-place!

As Leadfoot suggests, that's just what I'm gonna do, plug the end of the hose back into the air intake after the filter and before the intake butterfly and go riding and forget about it.

Welcome to the forum Leadfoot, but no hijacking allowed, :D you need to start your own post about headlight relocating. It EZ.

Kinarfi

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rocmoc Grand Master

rocmoc

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Kinarfi, are you using a Latex glove? Maybe your Trooper is allergic to Latex and causing swelling, LOL !

Pull the Oil cap off the top of the valve cover and see if it releases some of the swelling. May take a couple of minutes. Also try starting cold with no crankcase pressure with the Oil cap off and see if the glove swells. Just install a slobber tube to nearly the ground and just let it vent to the atmosphere.

rocmoc n AZ

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Leadfoot Explorer

Leadfoot

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Leadfoot , were do you ride at do you ever go to brimstone or windrock we have to get together and go riding.I would like to do a east coast Jamboree. How many people on this fourm that lives on the east coast would like to do a ride like the west coast boys do.

No, Used to ride Teleco before they closed it up, not many places to ride anymore around here. Wish there was! I'll second the east coast jamboree!!

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wringo Rookie

wringo

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Leadfoot , were do you ride at do you ever go to brimstone or windrock we have to get together and go riding.I would like to do a east coast Jamboree. How many people on this fourm that lives on the east coast would like to do a ride like the west coast boys do.

Count me in if my Joyner is running when you guys plan the ride. I live in Rockwood, Tn. not far from Windrock. I don't know where brimstone is, is it in Tn?

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