Do Valve Guides Need Oil

So, the engine will use oil, if the valve guides are worn or; there is too much clearance between the guide and valve stem. This applies to both, intake and exhaust guides.

What component controls the amount of lubrication to the valve guide and stem?

Different than other seals in the engine, valve stem seals play an important role in lubrication. Valve stem seals allow a controlled amount of oil to lubricate the valve stem as it moves in the valve guide.

How are valve springs lubricated?

The proper lubricant for engine valves is the oil used to lubricate the engine, typically a multi-weighted engine oil. … The lubricant then flows along the head to the valve stem(s) and once there, flows down the stem, lubricating the stem and guide.