Hey guys,
Betsie has some blow-by. I was under the impression she didn't have any blow-by, but I always checked with a cold engine.
I checked her a few weeks ago with a warm engine, and had to conclude that she does have blow-by; the oil cap dances somewhat and she smokes out of the oil filler hole.
My question is this:
Does blow-by cause the engine to smoke more? Lately I've been getting dark smoke out of the tailpipe when the engine is cold and idling, but I think a valve-adjustment would help with that. So I am not too worried about the dark smoke when she's cold.
However, yesterday as the engine was hot and I had the car idling in my garage (with the door open), I noticed a thin layer of smoke around the hood of the car (none out of the tailpipe).
So I popped the hood, and I can see thin whisps of dark smoking coming out of my air filter lid.
I pulled the breather tube on top of the air filter housing, and it's billowing smoke.
Is this caused by blow-by and should I not worry too much (after all, 280K is...well, quite a lot!
), or is it
not normal for smoke to come out of the breather tube on higher-mileage engines with moderate blow-by?
The smoke is coming out of the top of the air filter housing because some previous owner mangled up the air filter lid a little, and it doesn't make a perfect seal.
The car starts effortlessly at 25f (-5c), and seems to have plenty power and runs fine - except very clackety when she's cold. I really am not worried about the blow-by at all, but I don't know if the smoke coming out of the breather tube is normal... I would assume it is, but still, thought I'd check with the more knowledgeable folks
.