Oil on/in cold side boost tubes
#1
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Oil on/in cold side boost tubes
Why? Bad EGR? Bad gasket? What should I check?The car has less than 92K on the ticker.
I picked up this 5-spd '95 from a guy that did stuff to it. It's got a Flying Miata BEGI 4.2 turbo setup on it. Only boosts 8psi but it'll get more later. The guy gave me a MegasquirtV3 board and MSII CPU and some 550cc injectors.
I picked up this 5-spd '95 from a guy that did stuff to it. It's got a Flying Miata BEGI 4.2 turbo setup on it. Only boosts 8psi but it'll get more later. The guy gave me a MegasquirtV3 board and MSII CPU and some 550cc injectors.
#2
You have a couple possibilities. The engine might have large amounts of blow by if the crankcase breather is attached to the turbo intake tube thus the oil in the turbo and IC piping.
The turbo might be leaking oil due to age/wear or it might have a messed up drain or you could be over pressurizing the turbo, thus needing a restrictor. Is the turbo smoking?
How many miles on the turbo?
Is this the $3800 deal in atlanta?
The turbo might be leaking oil due to age/wear or it might have a messed up drain or you could be over pressurizing the turbo, thus needing a restrictor. Is the turbo smoking?
How many miles on the turbo?
Is this the $3800 deal in atlanta?
#4
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I have no idea how many miles on the turbo. Yep, it's the $3800 STEAL in Atlanta
Someone suggested moving the PCV to the low pressure side and capping off the barb on the high pressure side. I'll clean everything out, move that and then try it. There's no oil on the hot side (before the intercooler) so it's probably not the turbine itself.
Someone suggested moving the PCV to the low pressure side and capping off the barb on the high pressure side. I'll clean everything out, move that and then try it. There's no oil on the hot side (before the intercooler) so it's probably not the turbine itself.
#6
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Where the hell is there room for a catch can in the engine bay? I don't know how to test a PCV other than shaking it and listening for the click. If I were to go the catch can route, do I just put that in the middle of the vac line with the tee pointing down into the catch can?
#7
Blow through the PCV, its a check valve, if it leaks boost into the crankcase your oil won't drain out of the turbo and it can be forced out of the compressor and turbine seal. I don't run a catchcan, just a PCV and a tube from the breather to just after my filter on the turbo intake. You want the inlet for the catch can to be at the bottom, the outlet should be at the top, the catchcan should be baffled with some kind of scrubby or something similar to catch the oil.
Do a search or PCV and another for catchcan. Reply back tomorrow, there is enough to read to keep you busy the rest of the night.
Do a search or PCV and another for catchcan. Reply back tomorrow, there is enough to read to keep you busy the rest of the night.
#9
What do you mean by high pressure pipe?
The PCV valve is on the passenger side of the engine and it attaches directly to the intake manifold. The driverside has a port which most refer to as the crankcase breather. It is not a good idea to block this port nor the other one. You need both ports to move enough volume to alleviate positive pressure in the crankcase.
The best option, attach both ports in the valve cover to the lower portion of a catch can, then attach a vacuum line to the top of the catchcan to the intake tube pre-turbo.
WTF do you mean by high pressure pipe? Your PCV isn't attached to a charge pipe is it?
The PCV valve is on the passenger side of the engine and it attaches directly to the intake manifold. The driverside has a port which most refer to as the crankcase breather. It is not a good idea to block this port nor the other one. You need both ports to move enough volume to alleviate positive pressure in the crankcase.
The best option, attach both ports in the valve cover to the lower portion of a catch can, then attach a vacuum line to the top of the catchcan to the intake tube pre-turbo.
WTF do you mean by high pressure pipe? Your PCV isn't attached to a charge pipe is it?
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