Ballpark estimate is $100 per hour labor plus parts, the new valve guides price.
to change valve guides, there is no reason to remove engine from vehicle. u do need to remove the heads , as the valve guides are in the heads.so u need to remove,the inlet manifold, exhaust manifolds,probably the distributor,the alternator, and anything else that is bolted to the heads. TAKE THEM TO A MACHINE SHOP!!! trust me, you dont want to try to do this yourself!!
Yes you can. I'd check the valve guides for wear while you're at it though. If the valve guides are bad a new seal isn't going to be a long term fix.
NO... You MUST remove the heads and take them to a machine shop and have the valve guides replaced. No other way.
possible bad valve guides or blown head gasket possible bad valve guides or blown headgasket
Valve guides and/or valve seals can be worn. Allows oil to get into the combustion chamber.Oil consumption and smoking are signs of either bad piston rings or bad valve guides/valve seals.A compression check on each cylinder can help determine which.
It means the piston rings, valve guides and valve seals are in good condition.
valve guides are present in the engine cylinder head.these valve guide operates the working of valves in the cylinder.that is the inlet ant the outlet valves.
yes heads need to be removed
oil consumption, tapping noise (because it is loose), burned valves or valve breakage
How do you replace valve stems and guides on a 1989 Jeep 4 Cylinder engine?
bad piston rings Excessive engine wear - Rings, Valve guides, Valve seals
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 kind of valve?
Some heads have replaceable guides and you just drive them out with the head off. Others need to be machined to have inserts installed.
My guess would be bad valve seals and/or worn valve guides.
valve guides or valve guide seals or piston rings. in colder weather?
Never heard of that happening, but if it did it would indicate very badly worn valve-guides.
Bad valve guides or seals
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.
The cause could be worn valve guides. As the engine cools oil can seep down through the valve guides around the valve stems and collect in the head and top of the cylinders to be burned off when the engine is started.
sounds like bad valve guides, and/or rings If engine runs smooth when hot? I don't think it's the guides I would check the valve seals. also need to pull valve covers to make sure oil return holes are open in the heads.
the valve guides could be worn out The carburetor is running fuel rich and needs adjustment. If it were valve guides or rings the smoke would be blue
You probably won't ever have to change them if you don't want to. It'll just smoke as little when you first start it up. Usually not a big deal. ----------- If your valve guides are worn, then your rings and your cylinder walls are probably worn too. If you fix your valve guides without attending to the other issues, the increased compression may cause problems with the seal of the rings.