Usually by an oil pump located in the oil reservoir (pan). Oil is delivered under pressure which can be effected by many things, such as size of pump, oil weight, oil viscosity, age of engine, etc.
oil from the tappets running back into the valley
Excessive wear, or lack of oil. Or both. Generally lack of oil is what causes the excessive wear.
Noisy tappets on the Rover 75 1800 petrol engine typically indicate a need for adjustment or maintenance rather than a simple reset. These hydraulic tappets can become noisy due to wear, low oil pressure, or dirt buildup. It’s advisable to check the oil level and quality first, and if the noise persists, a more thorough inspection or replacement of the tappets may be necessary. Regular maintenance can help prevent this issue from recurring.
yes you do have to set the tappets
Is it a big problem to have noisy tappets in your engine?
adjust tappets on saxo 1.1 and gaps
From the service manual pg 7-1:The engine uses hydraulic tappets that eliminate manual valve adjustments. The hydraulic tappets have de-foaming chambers. Before assembling, fill the chambers with clean engine oil.
GET SOME NEW LIFTERS
no unless you change the size of the rods
It is supplied with a convenient type of gear oil.
It supplied the allies with oil
6 billion barrels of the 7billion barrels consumed by the allies was supplied by the US.