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Does the head have to be removed to replace the valve seals?
No the valve seals are between the cam and the head, under the valve spring
Do all 350 heads have valve seals?
The Chevrolet 350 stock "O" ring valve seals attach to the valves not the heads but, yes the head assembly has valve seals.
What causes your 2002 Toyota Camry burns oil?
Bad valve seals will that. You can purchase oil treatment which allows partially restore failing gaskets. But if the engine is doing that for a while, you need to replace the seals.
How can you tell if a rocker arm is loose?
Noisy valve train. Remove the valve cover and inspect the valve train.
Why is there oil on your spark plugs?
bad valve seals, bad piston rings bad valve seals, bad piston rings
1992 f-250 diesel is running rough and there is a lot of blue exhaust smoke after start up what could that be?
here is a list of some things to check 1 Inspect Valve Stem Seal Cracked or brittle valve stem seals allowing oil to enter combustion chamber. 2 Inspect Valve Guide Worn valve guides 4 Inspect Piston Ring Set Worn or broken piston rings. 5 Inspect Engine Control Computer Incorrect operation information being delivered and sent from the eec. 6 Inspect Distributor Worn, loose or incorrectly adjusted distributor. 7 Inspect Piston Worn or damaged piston. 8 Inspect Ignition Timing Incorrectly adjusted engine timing. 9 Inspect Engine Worn or scored cylinder block 10 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders 11 Inspect Fuel Injector Rich injector 12 Inspect PCV Valve Plugged or damaged pcv valve. i would think most likely a injector is stuck try using some sea foam through a main vacuum source this will unclog a injector i used this stuff allot i be leave autozone and many stores sell it for like 6.99 a can (Sea Foam / 16 oz. Engine Fuel and Diesel Treatment)
89 Mazda 323 smoking on startup?
White smoke when cold - normal condensation burning off Blue smoke when engine is at normal operating temperature - could be bad valve guides or seals.
Can you use oil treatment for bad valve stem seals?
No, oil treatment will react in the same way as regular oil. Replace the valve seals.
Your sparkplugs are swimming in oil what sealseals need replaced?
Valve seals If the oil is on the top of the plugs, there could be valve cover plug tube seals to change.
What is a rubber valve stem seals?
Rubber valve stem seals are the parts used to keep tires from leaking around the valve stems. They provide a tight seal which also keeps them securely in place.
What is the function of valve stem seals?
Valve stem seals help prevent oil from leaking into the combustion chamber through the valve guides. They also help control the lubrication of the valve stems and guide them properly within the cylinder head.
Its a Chevy 350 smokes on start up and sometimes while running?
Most likely bad valve guides and seals. Pretty normal for a high mileage Chevy.
