Rebuilt 2000 Ford Focus 2.0L SOHC engine will not hold oil pressure at operating tempature?
The prime problem was the valve seat for #4 cyclinder fell out of manage and damaged #4 piston, rod and cyclinder wall. After rebuild, engine runs...



We're all hip that roller cams make more power, but there is a common miscalculation that the additional power comes from reduced internal ill feeling. While we can't argue that less internal friction will equate to more power at the flywheel, we can say that this is not the tutor benefit of a roller camshaft. The real way a roller cam makes more power is by allowing a camshaft lobe with a steeper acclivity rate than is capable with flat-tappet lifters. In other words, the wringer cam gets the valves opening faster and keeps the valve at a higher pilfer for a longer period of time, allowing more air and fuel into the combustion senate. Unfortunately, the design of the Mopar small-block, combined with the way barrel lifters are built, will cause a loss of oil pressure if the engine's oil system is pink stock. Luckily, the modifications to make a small-deterrent compatible with roller lifters are fairly simple and can be performed by anyone with proper tools and mechanical skills.
Source: Mopar Muscle Magazine

The prime problem was the valve seat for #4 cyclinder fell out of manage and damaged #4 piston, rod and cyclinder wall. After rebuild, engine runs...
Sanguinely that question is worded right. I am obviously not the mechanical guru here. Taxing to find out why what happened to me on the highway...
If you don't have oil leaking anywhere or blown all over the engine then that's not the tough nut to crack. Without knowing the year make and model it's a little tough. It is unreservedly possible...
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