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This car, its throttle modulation is not nice at all. It is a 5 speed tranny and now with so much carbon at intake valves its idling and traffic jam performance is NOT elegant.
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Exhaust valves. I forgot the cylinder orientation...LOL
Cleaning burned oil deposit is one thing but then how long will it stay clean?
Have the rubber PCV seals failed ?
GDI can't stay as clean as port injected for its intake valves...we have to eat the pain pill.
I don't like this engine. Albeit it is small, working on it is not too simple.
I tried blowing with my mouth the valve .. , I did not bring my hand pump to my indie and not wanting to use compressor powerful air.... this PARTIAL LOAD valve , it can't open.
I was too lazy to blow the other way round, but I am sure I am correct for its airflow direction, it is a check valve after all....engine block to intake manifold.
When new valve arrive, I shall update. MB Indonesia been lame, commit 30 days and now 45 days still parts have not arrived.
I send my camera into that funnel shaped CYCLONE Separator cavity at engine block, its is clean actually.
This engine PCV is faulty, it does not have proper vacuum reading at idling or 3,000 RPM measured at oil dipstick...very very weak vacuum.
The plastic cylinder head cover is the FULL LOAD PCV system.
I tried using compressed air, it does have flow but honestly I do not know if the flow is good enough.
Inside it there are some sort of "valves" too. A W204 member have tear down his unit..cut it a part. Its like Audi/VW PCV on its plastic cylinder head.
GDI can't stay as clean as port injected for its intake valves...we have to eat the pain pill.
I don't like this engine. Albeit it is small, working on it is not too simple.
I tried blowing with my mouth the valve .. , I did not bring my hand pump to my indie and not wanting to use compressor powerful air.... this PARTIAL LOAD valve , it can't open.
I was too lazy to blow the other way round, but I am sure I am correct for its airflow direction, it is a check valve after all....engine block to intake manifold.
When new valve arrive, I shall update. MB Indonesia been lame, commit 30 days and now 45 days still parts have not arrived.
I send my camera into that funnel shaped CYCLONE Separator cavity at engine block, its is clean actually.
This engine PCV is faulty, it does not have proper vacuum reading at idling or 3,000 RPM measured at oil dipstick...very very weak vacuum.
The plastic cylinder head cover is the FULL LOAD PCV system.
I tried using compressed air, it does have flow but honestly I do not know if the flow is good enough.
Inside it there are some sort of "valves" too. A W204 member have tear down his unit..cut it a part. Its like Audi/VW PCV on its plastic cylinder head.
I replaced all PCV valves I mentioned, including the cylinder head cover too.
So far so good.
However, I am still not happy that the engine vacuum reading which I sense at engine oil dipstick seems to be too low, albeit negative value.
Too bad no such data exist for this M271 engine, or even for my M276.820 engine.
But for my M276.820 engine the vacuum value is comparable to BMW N55 engine, also a 3 liter in line 6 cylinders turbocharged.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
