quote:Oooooo, you are getting old. At least to my understanding, splash lubrication engines went the way of the dinosaur back in the 1950s!
Originally posted by Greaser: Which engines have oil fed to the wrist pins via connecting rods?May-be I'm getting old but I thought the crank and it's counter-weights splashed the cylinder walls with oil to keep the piston and cylinder wall away from each other
quote:I was thinking more of the way old, low rpm engines of the 50s and earlier were lubricated. Also, maybe I'm splitting the hair too thinly, but is "spray" considered to be the same as "splash"? Or do they partly overlap.
Originally posted by Greaser: My 2001 Jeep straight six just has a "spray" hole on the top of the connecting rod to "splash" the cylinder wall on the way around the crank...
quote:Yeah, I thought it was almost amusing too . . . until I considered what it meant in terms of oil supply volume to critical parts. Another "violence of oil" thought: in Naval Aviation training, we're taught to get the **** away from "pink clouds," which is what you see in the vicinity of small high pressure hydraulic leaks (atomizing fluid). Typical aircraft systems run at 3000 psi, and the flow from a small leak can slice your fingers off like a liquid laser beam. Trust me, I've got plenty of respect for moving oil.
Originally posted by Greaser: An engine turning at 3000 rpm will turn oil into a force that will tear the flesh from your hands if you could hold your hand under a running engine at that speed.Windage trays will yeild 10-20 HP in a HO engine just by letting the reciprocating assembly not get oil spray back on itself from the sump.Vapour coating your cylinder walls is almost amusing
quote:Would like to know why some engines need this type of oil feed and some don't.I have a piston and connecting rod from John Forces' Castrol funny car,signed by John to yours truly,and there's no hole in the rod...this is for a nitro burning 7000 HP funny car...wierd isn't it...by the way John Force is a heck of a nice guy,down to earth,and one of the fastest human beings on 4 wheels around.that I had the pleasure to meet
Originally posted by sciroccoGTX16V: VW watercooled engines have drilled rods that lubricate the wrist pin. The multivalve engines have oil squirters too along with rifle drilled rods