OHV engines run with the camshaft built into the cylinder block, unlike SV engines (no longer used) where they run parallel to the cylinder block. More commonly used in the modern world are OHC (overhead camshaft) engines, which run in a similar manner to OHV engines, eliminate the need for pushrods.
The function however? Is the same as any other engine; to spin an axle with high RPM/Torque depending on application.
Mainly, the difference is that in an overhead cam engine, the camshaft is mounted on the head of the engine, and the valves are still overhead, in an overhead valve engine (sometimes called a "pushrod motor"), the camshaft is in the crankcase.
Single Overhead Valve Engine
Under the valve cover, of an overhead valve engine. They push the rockers on the opposite side of the valve stems. Overhead Cam engines do not have push rods.
The original overhead valve or OHV piston engine was developed by the Scottish-American David Dunbar Buick around 1902.
No it does not. The only engine in the 1988 Cadillac De Ville was the 4.5 Digital fuel injected engine. The 4.5 engine is a 2 valve per cylinder overhead valve (not overhead cam) engine. It was a good engine but not in the power category as the Northstar.
You can run the overhead, on your 3126 Caterpillar diesel engine, by removing the valve covers. The overhead can be adjusted with the adjusting screws.
Type your answer here... They are in the cylinder head.
A 4-cycle engine that has the intake and exhaust valves located in the cylinder head.
The 4.2 L - V6 engine used in the 1997 Ford F-150 is an OHV ( overhead valve not an overhead cam ) if that is the engine you are referring to ?
Oldsmobile introduced the "Rocket" overhead valve V8 engine.
The lifter bucket, which is on top of the valve stem, and the spring in the Overhead Cam engine aides in adjusting the valve clearance.
Need to know the engine model and type.