All About Your Engines Oil Pump

The oil pump is the most universal but least technically explored part in the world of cars.
Here's a breakdown of how a typical gerotor pump works, a breakdown of its parts, and how and why they go bad.

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#oil #engines #oilpump

[gcaprice]

It totally baffles me how you are able to make videos that are so simple about common things like oil pumps that nobody else talks or writes about. Easily my most valued subscription.

[casenumber]

I really appreciate how you make mechanical processes understandable and relevant. Thanks.

[norcore]

One of the most informative videos I've ever watched.

[TA_Plus_Hemi]

I soaked in Deep Purple for a few hours when I was a kid. I was never the same again

[KamiruNusbaum]

In my case, the stuck bypass valve in the oil pump, caused massive spike in oil pressure, so it searched for the next weak link - namely the oil filter gasket. At first I tought it was a faulty oil filter, but after third one, I figured that something is wrong. After I took the pump apart, the clearences were spot on, just the valve would not budge.

[perfection]

I’ve looked and always wondered how an oil pump works and what makes one high volume. Thank you for the information. Most deff appreciate you taking the time to put out good information.

[oldtimerf]

YES!!!!
I for one prefer these basic tech vids over the stuff like economy or trivia.
More please!

[rogueart]

Wierd that I’m making an oil pump for my model engine and this pops up.
I’m glad that I watched this because I never thought about a much-needed bypass.
Thanks Tony you are the man.

[garymatthys]

There are some early (60s Buicks for one) engines that do require the oil pump to be packed to avoid a dry start after a rebuild. They will hold prime after that though.

[amps]

I always use Deep Purple when I clean my oil pump pickup. Highway Star, Smoke on the Water, Space Truckin', as loud as possible.

[captainjohnh]

As one of the newbies, I LOVE this type of video. Good to see you throwing one in now and then like you did in your early days. Oh, and bring back the stunt carb!!!

[larryreagan]

Everybody needs to watch this video! thank you for clearing up the confusion between the standard volume, high volume, and high pressure pumps! there's an age old confusion associated with em. Great video as always!

[coltenlang]

As a younger guy that didn’t get the opportunity to grow up around these old school vehicles these videos are honestly really very helpful

[davenhla]

I feel obligated to make a comment about this for the Oldsmobile guys.
If you are building the latr Olds big blocks, 425/455, please keep in mind they were designed to run at what is considered a low RPM now days. People will say Olds have oiling issues. What actually happens in the drainback is too slow.
Many times, people will do tings to allow these engines to spin faster. The average engine builder will also recommend a higher volume pump, which they do for everything really. Unfortunately, with the way the Olds oil passages are, it is possible the combination of a higher RPM and a higher volume pump will pump the pan empty and the oil will all be up in the valvetrain trying to make it's way back to the pan.
This isn;t super common, but I have heard about this happening to people, where their barnd new rebuilt HiPo 455 had an oiling issue and had a break down. When they look into it, they can;t find anything wrong with the pan, pick up, or oil pump.
I am pretty sure Dr. Olds himself has some videos on youtube about it, he devised some modifications to help with the oiling design of the Olds BB.
Long story short: Olds guys, do your homework before deciding on a combo for your BB! Sometimes the high volume pump is worse!

[billjones]

An exception to packing the pump with grease is with the aviation engines with their huge clearances, low compression, low RPM operating range. One additional thing you can do when blueprinting an oil pump is reducing the clearance between the pump cover and the gears: target of around 0.002 inches of clearance. A flat surface, a piece of fine sand paper and figure 8 motion until the desired clearance is achieved. Keep ‘em coming Tony!

[ManyTailedFox]

You were right, UT. It was the bypass getting stuck. Took it out, cleaned it and stuck it back in. Spun it, made like 22-24 PSI on the drill.

[eddiehuff]

Thanx Uncle Tony for another basic lesson. :) Actually after 25 years working maintenance in a chemical factory I consider myself an expert on pumps. Scoring definitely has a huge effect on pump efficiency.

[ericneering]

You’re always such a great teacher every time I watch your video. I never have any questions. Good job.

[robsmith]

Love the info uncle Tony. I watch all the time, like a lot of videos, but I dont comment often. I appreciate everything you share with us.

[UnityMotorSportsGarage]

Yeah the oil pump shaft on a SBF is the Achilles heel of it in my opinion... I put an aftermarket shaft in them even if it is a stock type build! Good video..