can one drive a car around that doesnt burn oil and runs cool with bad valve guide seals?
bad guide seals
Feb 28, 2005
3 Replies
Unlikely.
If they're not doing their job it should use some oil. What do you think they're there for?
If the motor doesn't burn oil then the valve guide seals are probably OK. After a mile or two of driving the motor should be at about 80 degrees C., if not, the the engine's thermostat should be replaced with a new one.
I asumme your talking about a gasoline engine. With bad valve guide seals you'll see blue smoke on start up and it'll run pretty good. Oil consumption can be significant like a quart every tankful of gas. Plugs can get fouled ans so can the O2 sensor. Some seals can be replaced from the top without head removal.
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