??? yer scarin me man.. The oil pump 'sucks' the oil up from the pick-up/sump by the close tolerance between the gears (like a roots blower sucks air) but should be primed with lube of some sort (even Vaseline works) before first initial running. Then, depending on how many gear 'teeth' or vanes, oil is sucked up and pressurized, then pushed up through the passage into the oil filter housing boss/structure, through the filter media and up into the blocks passages. Usually only higher performance engines use oil squirters to cool the piston domes/ring lands. The oil doesn't stay pressurized like a balloon. It gets squished out between the bearing sides cooling them (really, taking heat from the bearing halves that was transferred from the iron or aluminum structure that holds them) , and gets flung around into pretty much a vapor. coating EVERYTHING in the crank-case. (just think. At say 4000rpms and 50+psi) That's why a bad or open PCV valve(Positive Crankcase Ventilation vlave) will suck as much oil vapor straight into the intake tract according to RPM's. And a plugged system that can't 'breathe' will blow gaskets and even the filter itself off. There are a number of 'Ol tricks' with oil pumps and flow that have been around for decades/generations.. Smokey Yunick would be one source. Rule of thumb for HOT oil pressure is: 10psi per 1000rpms is adequate. (since that's about IDLE on most race engines) If you're at 80psi HOT idle, I'd say you got a problem or some kind of restriction. And THAT will rob power from you. (and cook/break down your oil prematurely) It's called "Intra-fluid-friction". Since it's smashing against it's own molecules. Too thick of oil can do the same. The pump itself supports the physical law that you can't compress a liquid. And the size of the passages/tolerances/restrictions will regulate the pressure. ..(hydraulics).. Filtration is a WHOLE 'NUTHER lesson.. Also, Water/Coolant is only about 60% of the cooling. The oil and wind/air blowing over the engine does the rest.

@JeepSheepTV

4 жыл бұрын

Dang that was fantastic. Thanks for really breaking down the mechanics! I love how I can turn a couple of screws on camera and it starts a dialog with incredibly knowledgeable people like you. You have certainly earned the highlighted comment spot!

@blownaway4371

4 жыл бұрын

@@JeepSheepTV I'm just a knuckle-head.. Get on Mellings' (Melling Oil pumps) site and pull up the "NEW" shark tooth oil pumps (Chevy- doesn't really matter) BUT.. pretty pricey @ $110+!! Then go and watch/listen to the little videos that they offer. VERY informative. Just watched a few last night. Getting back to the process, The 'shark tooth' design is like the roots blower that is "helical" in design, that draws the oil up instead of just smashing it, and hoping it goes out the top nearest hole.. Leonardo Da Vinci basically designed this Waaaaay back. Like putting a drill bit in a tight fitting tube. He came up with that design to draw water up from the ground from what I read..? BUT.. IF there's any contaminants that are larger than the molecules of oil, that produces wear/scratching/damage depending on the size. Then, there's the bread down from the heat and chemical by-products of the combustion process.. That's where SYNTHETICS came into being. That's a whole nuther lesson lol. (get on Amsoil's site and read away.. They were the first to offer to public)

that odd pin deal is part of the pressure regulator. It's a spring loaded valve that is opened by excessive pressure and thereby dumping that excessive pressure and oil back into the sump

@JeepSheepTV

4 жыл бұрын

Whoa! How cool is that. It also makes a lot if sense because otherwise it would just keep building pressure until something breaks. Thanks for the comment!

@scotte2815

4 жыл бұрын

@@JeepSheepTV anytime you have a pressurized liquid (ie hydraulics) you need/must have something like this. liquids are not compressible and even with some degree of designed leakage/seepage pressure has to be controlled or somethings will lock up or rupture

Excellent breakdown series. Thanks

12:22 Most engines lubricate the piston skirts with the oil that slings off the crank.

The oil actually passes around the outside of the gears.

@JeepSheepTV

4 жыл бұрын

Are you talking about in the oil pump? That would make sense...

@chadalcock7275

4 жыл бұрын

@@JeepSheepTV Exactly

@chadalcock7275

4 жыл бұрын

The oil getting back to the pan is just gravity, same path as when you add oil. As for the oil getting to the pistons, I thought I saw an extra lobe between the exhaust and intake lobes of each cylinder, directly in line with the holes coming from the top of the engine, could be an oil slinger.

@JeepSheepTV

4 жыл бұрын

@@chadalcock7275 you are a life saver! Thanks for the comment!

Hi friend. I love your channel! I have a question about the gears that the oil pump carries. I disassembled it and one of the gears came out which is loose. not the dealer's. my doubt is that I see that it has two holes at the top. what is the correct way to put it back in its place?

Is the 2.5l pistons the same size as the 4l.

Where is the oil filter adapter Did you remove it. Do you have a video on you removing it and what it looks like.

@JeepSheepTV

2 жыл бұрын

I did remove it and I don't think that I have a video of it but it just looks like a threaded piece that you take off with a socket if I remember right