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techtalk:ref:engmech05 [2019/07/21 01:40] hippysmack [Pics of Aftermarket Breather Valves] |
techtalk:ref:engmech05 [2019/07/26 17:34] hippysmack [Vent Outlet Above vs Below the Head Vents] |
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However, exact line routing comes down to function over fashion. \\ | However, exact line routing comes down to function over fashion. \\ | ||
While it may look better or cleaner for the lines to be routed above the air cleaner; \\ | While it may look better or cleaner for the lines to be routed above the air cleaner; \\ | ||
- | Doing so doesn't make for good functioning of the breather system. \\ | + | Doing so doesn't necessarily make for good functioning of the breather system. \\ |
+ | That also can be debated. \\ | ||
The air / oil that gets blown out is a combination of crankcase pressure and engine blowby. \\ | The air / oil that gets blown out is a combination of crankcase pressure and engine blowby. \\ | ||
- | Blowby gasses produce a corrosive vapor which doesn't need to go back into the engine. \\ | + | The argument is blowby gasses produce a corrosive vapor which doesn't need to go back into the engine. \\ |
- | It'll simply pool in the heads / vent lines. \\ | + | It'll simply pool in the heads / vent lines and become an emulsified goop. \\ |
Mounting vent lines higher than the head vents is counterproductive to quick air/oil/condensate removal. \\ | Mounting vent lines higher than the head vents is counterproductive to quick air/oil/condensate removal. \\ | ||
It's the quick removal that helps prevent sludge buildup. \\ | It's the quick removal that helps prevent sludge buildup. \\ | ||
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The air coming from the head vents has fine water condensation and oil mist particles in suspension with it. \\ | The air coming from the head vents has fine water condensation and oil mist particles in suspension with it. \\ | ||
- | When that air cools, the oil mist falls out of suspension and collects in the vent lines. \\ | + | When that air cools, the oil mist falls out of suspension and collects in the vent lines and mixing with unsuspended oil droplets. \\ |
Pointing the vent lines straight into the A/C (OEM) or down into a catch can allows the oil out of suspension to leave the vent lines. \\ | Pointing the vent lines straight into the A/C (OEM) or down into a catch can allows the oil out of suspension to leave the vent lines. \\ | ||
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However, pointing the vent lines upward of the head vents allows oil out of suspension to collect in them. \\ | However, pointing the vent lines upward of the head vents allows oil out of suspension to collect in them. \\ | ||
Once there is enough liquid oil in the upward breather tubes it will act just like the trap under your sink. \\ | Once there is enough liquid oil in the upward breather tubes it will act just like the trap under your sink. \\ | ||
- | It may block air from getting out until the engine (on startup) builds enough pressure to push the liquid and bubble up to the top. \\ | + | It may restrict or block air from getting out until the engine (on startup) builds enough pressure to push the liquid and bubble up to the top. \\ |
So it may affect crankcase pressure slightly until the lines are cleared. \\ | So it may affect crankcase pressure slightly until the lines are cleared. \\ | ||
Or the trapped oil may simply be blown out the vent lines in globs. \\ | Or the trapped oil may simply be blown out the vent lines in globs. \\ |