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1993 Mazda MPV 4-cylinder Valve Seals?
You'll have to pull the heads and have the guides and seals replaced. Bad seals are usually an indication that the guides have worn as well.
Does loose rocker arms cause engine to smoke?
Not usually. If the rocker arms are loose because the cam lobes are worn down, that could be an indication of a worn engine, which might have bad rings or loose valve guides, which would cause an engine to smoke.
What causes oil to be in the spark plugs?
Either worn valve guides, worn rings, or a holed or cracked piston.
Why is oil coming out of your motorcycle exhaust?
This could be caused by a clogged PCV valve, worn internal seals, or worn valve guides. A clogged PCV valve will pressurize the engine internally, which force oil past important seals into the exhaust stream. Likewise with worn seals, oil simply leaks out. Worn valve guides makes it possible for oil to seep down the exhaust valve into the exhaust stream.
Why does your 2006 f250 smoke on start up?
Worn valve guides? New answer : Worn valve guides WILL cause some what of a rough idle and engine would smoke at all times. If engine smokes at start up only and then quites then your problem would be the VALVE SEALS.
What are the symptoms of Worn valve guides and rings?
oil consumption, tapping noise (because it is loose), burned valves or valve breakage
What causes an engine to burn oil?
The typical causes are worn piston rings or valve guides.
What causes smoke from the exhaust?
It can be a number of things, but the most common problem is worn valve guides.
Oil on the spark plugs?
Worn rings or valve guides (more likely) Check compression.
Why does white smoke appear every time you start your 1993 Acura Legend LS?
burning oil or fuel.gm jim White smoke can be a indication of a leaking head gasket. Keep a eye on the coolant levels just in case. Gray smoke at start-up is a indication of worn valve guides.
Why would a car blow blue smoke then clear after about 20 miles?
My guess would be bad valve seals and/or worn valve guides.
Can exhaust gas backup and ignite in the valve cover?
Never heard of that happening, but if it did it would indicate very badly worn valve-guides.
