Discussion
Depending upon the engine there may be some or all of the following:
Main bearings, big end bearings, cam bearings, cam rockers/finger followers/tappets/pushrods/whatever the engine has to operate the valves, the valve stems, alternator, starter (more on bikes for those two to be honest), under piston cooling jets, cam timing switching gear (VTec and so on), cam chain(s), gear box if bike or old mini, clutch if bike. There's probably some I've forgotten about too.
Main bearings, big end bearings, cam bearings, cam rockers/finger followers/tappets/pushrods/whatever the engine has to operate the valves, the valve stems, alternator, starter (more on bikes for those two to be honest), under piston cooling jets, cam timing switching gear (VTec and so on), cam chain(s), gear box if bike or old mini, clutch if bike. There's probably some I've forgotten about too.
Christoffer said:
Great thanks guys!
So no general "must be oiled" areas? Where would a sporty-type engine be oiled? ( e.g. Porsche 997S or Audi S4)
Most of the places I mentioned are "must be oiled" areas! All the bearing surfaces MUST be oiled all the time, or bearing failure will only be a small distance away.So no general "must be oiled" areas? Where would a sporty-type engine be oiled? ( e.g. Porsche 997S or Audi S4)
Fords con rods X Flow,Essex etc had tiny holes on the conrods(just to the side of the beam)that fired oil up the bores(thrust side)it got its supply from the conrod bearings,both upper and lower shells had holes in them generally as StevieTurbo said most regular engines rely on oil bleeding out of the sides of the crank bearings for lubrication of the bores.
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