How to upgrade the Kohler Command oil pump for better performance.

This video shows' how I modify a Kohler Command oil pump to increase oil flow to better protect a high performance engine.
The Ultrasonic cleaner I use is a Digital Pro+ model MH-040S it is a 6L size.
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/ @pullerbeared

[@mr1pearl]

Good stuff Ed !

[@PullerbearEd]

Thank you Bill.

[@themowerman]

Good step by step video.. thanks mate

[@PullerbearEd]

Thank you Sir Mick.

[@abpstumpremoval9669]

Did adding the 2 5mm washers increase the oil pressure. Stock as you mentioned is about 40psi what is it now with the 2 washers in the relief valve. Thanks Darren

[@PullerbearEd]

Yes it increased it. It ups it to about 60psi on average.

[@jonschroeder9583]

Oh baby you know what I like. Thanks for the oil recommendation too. Did the modification while eating your famous loose meat sandwich, mushrooms, onion, mustard and a hint of zinc flavor.

[@PullerbearEd]

That's awesome

[@julioramossilva3968]

what mods??? Can you explain me like iam very dumb, what so great in this video??? I dont understand it.

[@PullerbearEd]

Juilo the mod is increasing the oil pressure to increase the volume of oil to the engine. At the RPMs we run you can run the bearings out of oil really quickly.

[@Gersberms]

It's nice to see that these engines have a real oil pump! As a side note, not all motors are engines, and not all engines are motors. This motor happens to be an engine and this engine is also a motor. I'm not sure why there's so much discussion about that subject, it seems pretty simple.

[@PullerbearEd]

en·gine /ˈenjən/ noun 1. a machine with moving parts that converts power into motion. mo·tor /ˈmōdər/ noun a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.

[@davidshepherd-sj2tj]

​@@PullerbearEdYES!!! 💯% these words r synonyms !! U can use either or at ur pleasure and as ur heart desires !!!

[@BensWorkshop]

Nice work there Ed.

[@PullerbearEd]

Thank you

[@dirtfootracing8788]

Easy hack good info

[@PullerbearEd]

Thank you, I know it's just simple but I hope it helps someone save their engine.

[@julioramossilva3968]

@@PullerbearEd Did you just changed the relief valve?

[@PullerbearEd]

Yes Julio, we add shims to the spring to increase the pressure at witch the relief valve opens.

[@Turningwrenches85]

Nice upgrade there. 👍👍

[@PullerbearEd]

Thank you, it's just a bit of insurance

[@julioramossilva3968]

@@PullerbearEd Do you pass over engine max rpm?

[@PullerbearEd]

Yes we run them at anywhere from 8500 to 10,000RPM

[@Tyler_Robertson]

May have to do this to my stocker the next time it’s out!! Keep it up man!

[@PullerbearEd]

It won't hurt it. Every little bit of friction you can eliminate is just a bit more horsepower.

[@julioramossilva3968]

Why?

[@PullerbearEd]

The less friction allows the engine to make more horsepower. The engine doesn't have to work so hard.

[@lisaann6267]

i shared on public story, hope it helps. ✌🏻👍🏻

[@PullerbearEd]

Thank you Lisa, I'm sure it will.

[@matersworkshop6123]

Good info to know

[@PullerbearEd]

It's just some little things I've picked up from Twisted V twin garage and other places.

[@metalman1176]

Wheres the oil pump located at? Inside the motor? You never said.

[@PullerbearEd]

Yes it is in the bottom of the engine on the inside.

[@timothypieters8263]

What kind of oil pump pressure did you end up with after installing just that one washer, did you need to add another?

[@PullerbearEd]

I never tested that engine but it's usually give about 10 more psi on other engines I've done.

[@toddnance454]

Thx for the video, you use the stock vent on top of engine, or do you add a breather?

[@PullerbearEd]

It depends on what class, if it's an open rpm class we add vents to the PTO side of the block. We drill and tap the top outer 2 mounting holes above the pto. I do show it in one of the videos on the Plan B tractor and the pro V engine build

[@lisaann6267]

yes, ive watched your beggining videos & there were a lot more comments on them, comments on videos have dropped off a lot. :(

[@PullerbearEd]

It's all good. I know watching drops off during the summer. It will all come along and if it dont then it wasn't meant to be.

[@julioramossilva3968]

works better? can you explain it better? Doesnt the original pump works well??? Are you just changing the pressure limit of the pump? I dont understan very well the point.

[@PullerbearEd]

Yes the stock set up works fine for 3500 RPM. but when the RPM go up the relief valve opens sooner decreasing the volume so we up the relief valve pressure to increase the volume.

[@BradHudsonhudson]

Question does the dot on the oil pump gear face you or does it go down ? I have one with a broken plastic gear does kohler sell that separately

[@PullerbearEd]

The dot faces you. I don't know if that gear is available separately but I would guess not because the pump wasn't the last time I checked.

[@abpstumpremoval9669]

How do I test oil pressure on a 25hp kolher about a year 2000

[@PullerbearEd]

There is a test port on the top between the heads. There might be a pressure switch in the port. Just remove it and install a mechanical gauge.

[@stevebarnes8008]

Hey Ed, i would like to put an oil pressure sensor and gauge on my Kohler command pro 27. Where would i put the sensor?

[@stevebarnes8008]

The motor is all apart right now. I can send pictures if that would help?

[@stevebarnes8008]

Oops, i ment engine!

[@PullerbearEd]

I use a mechanical gauge and I put it the port on top of the engine between the heads. There is a plug there where a pressure sensor would have been from the factory.

[@GamertagAKACUZ]

Any idea where one can get a new pump of that style. I broke the cam gears on mine and it says part discontinued

[@PullerbearEd]

You can check ebay or maybe a small engine shop locally might have an old engine around. Lots of parts for these engine are discontinued.

[@jrmlandscapes4566]

Any idea how to change out the plastic gear on this pump?

[@PullerbearEd]

Not really, I have never had to change one. I will ask the panel this Sunday on my live stream.

[@jrmlandscapes4566]

@@PullerbearEd Thank you. Keep me posted if I miss the live stream please.

[@twistedvtwingarage7260]

More psi is a good thing 👍

[@PullerbearEd]

Yes it is...

[@julioramossilva3968]

How can you get more psi, witout changing gears or the pump??

[@PullerbearEd]

Julio by add shims to the relief valve spring you increase at what pressure it opens up at thus increasing the pressure in the system.

[@commentpulling]

Hey Ed will this help on a stock engine?

[@PullerbearEd]

Yes very much so. The more oil you can get moving through the engine the better.

[@julioramossilva3968]

@@PullerbearEd How can you get more oil? Did you changed the gears of the pump??

[@MCEngineeringInc]

👍🏻👍🏻

[@PullerbearEd]

Thank you

[@bachisblanketsandmore]

👍👍👍😊

[@PullerbearEd]

Thank you Bachi

[@bachisblanketsandmore]

@@PullerbearEd you're welcome

[@nathanrittenhouse3589]

Sir I got Kohler pro 24 hp engine I need to find me an oil drain hose to make changing oil easyer would you know what size hose I need to screw in engine

[@PullerbearEd]

If memory serves me correctly it is 3/8in NPT

[@nathanrittenhouse3589]

@@PullerbearEd thank you

[@PullerbearEd]

Your welcome, glad I could help

[@jimmypotts4516]

I used one from a 22 hp briggs vtwin

[@jimmypotts4516]

I have 25 hp kohler command vtwin I was in the process of converting from vertical to horizontal shaft I made a tube and a screen block for the oil pump but my freind pointed out that there's no way for the oil to be pumped to the heads any ideas I appreciate

[@PullerbearEd]

I've never converted one like that. I would have to think it would pump it up there the same if it was a vertical or horizontal.

[@jimmypotts4516]

@@PullerbearEd this engine has a oil cooler could you run lines to the valve covers on the return side of that so the oil pump sends to the cooler then the heads thank for your help there's really not much on those type videos and don't want to ruin this motor that I've already removed gov from

[@kylegoldston]

I think only Hondas send pressurized oil to the heads, all the other commercial twins have oil mist come up the pushrod tubes from the crankcase or inside the pushrod itself.

[@jimmypotts4516]

@@kylegoldston thanks Kyle i found a horizontal 25 that is seized and the guy told me I can have so I have something to work with now

[@kylegoldston]

@@jimmypotts4516 if you don't want both I can take whatever parts you don't need, I am going to be starting up a V-twin Kohler engine program.

[@martypeavler6172]

What is your suggestion to get the maximum hp out of a 7hp kohler

[@PullerbearEd]

Replace it with a 14hp lol. Just kidding the best thing would be to port and polish and mill the head a little. Then bigger valves and a better cam shaft.

[@martypeavler6172]

I would switch it to a 14 hp kohler but for the kids class they dont allow that hp. They also dont allow port and polishing the head and they have to have stock valves

[@PullerbearEd]

If its a pure stock class then there isn't a lot you can do other than getting the timing dead on for what the engine likes and getting the fuel dialed in.

[@lisaann6267]

please put the name of your ultra sonic cleaner in your notes below video. thanks.

[@PullerbearEd]

I will get the Information up today

[@lisaann6267]

@@PullerbearEd thanks

[@PullerbearEd]

I edited the description to include the info on my ultrasonic cleaner.

[@Hondabond35]

why do they call it Department of Motor Vehicles why is boats with an engine so-called call a motorboat your statement is false whoever told you that just heard that from somebody else George called a folktale

[@PullerbearEd]

If you are referring to the engine vs motor thing yes I know by definition they are the same. Thank you for watching.

[@davidshepherd-sj2tj]

Actually a motor can be electric, gas, or probably even steam etc, according to Webster and vice versa for engines .... Anyone doubting this is more than welcome to go ask Webster and u can verify this for urself before u go acting a fool 😂😂😂

[@PullerbearEd]

🤣🤣🤣 thank you

[@ronsimpson8948]

the reason for not many thumbs up is that you made a lot of errors in your speech, bad camera views and said "a" 4 thousand times!

[@PullerbearEd]

Thank you for the great positive feed back. There is a PayPal link in the description if you would like to donate to the channel for better camera equipment and maybe some speech therapy.