All Things Mk5 > Mk5 General Area
URGENT oil pressure stop engine
Pesky jones:
Agreed, I'm going to get a price for a new one and also keep an eye out for a second hand one. The problem is, if I try to remove the broken shafts, I might damage the cam cover to the point I cant drive with it. I need to be a day or two away from the getting a new cover before trying to remove them ideally - which realistically can only be done if buying a new one.
Just for information, with the OEM PCV why does the crank vent to the cam cover, only to vent from the cam cover to the inlet manifold? Why not just have it go straight to the inlet manifold to burn?
If I sort the cam cover, I might just go standard PCV for now. I think unless I do it properly with a r-tech system (are they the only ones to make a "good" system?) I'm not going to bother. Its just an extra expense without worthwhile benefits at the moment. Thanks for the info
rich83:
New cover and new OEM PCV and seal will see it right.
Dan_FR:
--- Quote from: Peskyjones on May 18, 2016, 11:31:05 am ---Just for information, with the OEM PCV why does the crank vent to the cam cover, only to vent from the cam cover to the inlet manifold? Why not just have it go straight to the inlet manifold to burn?
--- End quote ---
Crank gases vent in to the cam, join the gases/pressure from the cam area, then all of the pressure/gases go through to the PCV, which either directs it directly in to the intake manifold under vacuum, or in to the turbo intake when there is boost/positive pressure in the inlet manifold.
The gases cannot go straight to the inlet manifold, as when on boost, the positive pressure in the inlet would pressurise both the cam and crank areas, which is a major no-no if you like your engine. This is why we need the PCV which is essentially a one-way valve, allowing gases to pass through in to the inlet, but stopping any pressure returning and pressurising the engine. On a N/A car there is no issue venting straight to the inlet manifold as there is no positive/boost pressure to worry about in the inlet manifold.
Pesky jones:
Update - new rocker cover on and pcv is now tight.
When r tech did the smoke test this was the only place it was leaking from.
It still surges a little bit. It doesn't surge with maf unplugged.
I have a spare maf now thanks to @DANBOY66 so will replace this then see what it does, although I know @Dan_FR doesnt think that the maf sensor often fails but its worth a try?
Pesky jones:
Fitted the new maf and it APPEARS to have fixed the surging. I need to check a couple more times though as it wasnt vey quiet today
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