Oil Return Line?
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Race Director
Joined: Jan 2007
Posts: 11,213
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From: Portland, Oregon
Oil Return Line?
I stopped by a Chevron station tonight to top off my tires to 35 PSI (they were at 32) and did a cursory check under the hood as I'm pretty fanatical about maintaining my car to a T. The coolant was close to the 'L' on the tank so I drove home to add a splash of distilled water and decided to pop the engine cover off to see how dirty it was under there.
That's when I discovered this hose seeping where it returns to the engine block. The hose runs up from under the intake manifold so I think it's an oil return line (maybe from an oil cooler) because I ran my finger over the seepage and gave it a sniff. It doesn't smell like coolant so I'm guessing it's oil. Any ideas?
Closer...
That's when I discovered this hose seeping where it returns to the engine block. The hose runs up from under the intake manifold so I think it's an oil return line (maybe from an oil cooler) because I ran my finger over the seepage and gave it a sniff. It doesn't smell like coolant so I'm guessing it's oil. Any ideas?
Closer...
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Joined: Dec 2010
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From: Austin, TX
Not to freak you out, but reading about PCV valves and crankcases produced this.
If an engine is damaged or enters old age, gaps can form between the cylinder walls and pistons, resulting in larger amounts of blow-by than the crankcase ventilation system can handle. The gaps cause power loss, and ultimately mean that the engine needs to be rebuilt or replaced.[7] Symptoms of excessive blow-by include oil being pushed up into the air filter, out the dipstick,[9] or out the PCV valve.
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