Predator 420cc Oil Cooler & Filter Install

Today we experiment with a Harbor Freight Predator 420cc Engine. We show how to install an oil filter, oil cooler, and oil pump. We saw 30-40 degrees difference on the temp of the oil. With the added filtered oil this can extend the life of your go kart or mini bike engine and help make more power. We will be putting this on a 150cc go kart. Check the links out below.

Parts Used on This Build

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Red Beard's Garage
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Sweetwater, TN 37874

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**********Disclaimer**********
Please do not try to re-enact or recreate anything you see in these videos. We are trained professionals. Red Beards Garage does not take any responsibility for injury's created by doing so.

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[larrybreuer]

I think this what all them over educated fellers would call “ proof of concept “. Well done sir!
👍👍❤️

[Chris-jfcb]

Need to return oil threw the governor hole once removed then it'll be dumping the cooler oil over the moving parts instead of pushing threw the hot crankcase oil

[earnestmatlock]

One small step for honda clone engines; One giant leap for reliability. Well done Red Beard. 👍

[scottc]

Great idea! The only thing I'd change is to find a way to mount the filter vertically so there's not a mess when changing filters.

[David-jssg]

I have already done this i added a oil pump and oil cooler and oil resivour to my Generator i also wrapped my long muffler with 2 1/2' inch aluminum tubing with brass fittings i pump antifreeze thru one hose and send it to a external heater core with 3 speed fan 12 volt ⚡️ dc the other aluminum tube. I Pump FRESH WATER 💧 through this one and it heats water up in my water heater . It curculates water 💧 in my tank heating up my water tank, for hot 🔥 water to use for bathing or washing dishes or washing machine for clean clothes, i also use my generator to charge 3 AGM Battrys 150 amp hour battrys giving me 450 amp hours of DC current at 12 volts ⚡️ DC for my 3000 watt ac inverter. I controll everything with a marine generator controller.

[drewrowell]

For most inferred temp guns, you have to hold the gun 1-3 inches away from what ever you are measuring for the most accurate results. I have to use them in the oil refinery I work at, and it does make difference between holding them a foot away and an inch away from whatever it is you’re temp checking. Awesome video once again👌🏼👍🏼👍🏼👍🏼

[rong]

Pretty cool! “ Keep a ton of hose…” and an engineering degree from “Harbor Freight” was a legit LOL!!! 😂

[hernandovillamarinbuenaven]

Hi Red!: Thank you for your great videos + dedicated work on these small engines with a lot of potential to improve basic factory features;
>How about installing the cooled + filtered oil (At least, part of it..), thru the valve cover to do perform a couple functions:

>Lube + cool the valve train.
>Cool the head itself

*The rest of the cooled + filtered oil, to be returned thru the governor hole, thru a copper or brass tubing (Could even add a small nozzle..), to squirt oil to the mechanical moving parts, probably including the piston skirt iself + cylinder wall.
*I'd also keep in mind the positive pressure built inside crank case to partially help the above circuit.

>Bottom line is a cooler working engine should be a longer lasting one. Of course the oil pump itself should be strong enough to fully keep moving the cooled + filterd oil, and overcome the crank case pressure..
(Just my two cents)😢

[tblosser]

If you run the oil back in the valve cover it would help cool the head and lube the valve train

[MudMotorsMax]

I need this for my mud motor in the water

[FPVSlacker]

Instead of the oil cooler you could also have an external oil tank. This would increase the total volume and heat capacity of the oil.

[nightkidnick]

8:00
I have a stage 1 predator 420 that has issues with the battery not being able to properly charge. I’ve seen the video on how to put better charging coils but I’d definitely like to see a video on how to Setup an alternator! Thanks :)

[kainatticus]

19:49 Couldnt agree more, I love these sort of projects

[BobSmith-jtzj]

Nice! I can’t wait to see how the alternator turns out.

[TejasToolMan]

That's pretty cool I wouldn't mind having an oil filter and cooler on my power washer and Generator that sucker runs 8 hours a day

[miketee]

A couple of benefits, longer service between oil changes and considering these motors hold very little oil this set up should almost double your oil capacity.

[beachthor]

Just rode my Coleman trail bike you sent me back in 2018, still goin strong! Love the vids, keep it up!

[mikesbarn]

Keep in mind that all of these air cooled engines are running less than 100 degrees from total failure. Every degree you remove helps with performance and longevity.

[madmanorgan]

I've always wanted to do this, didn't know where or how to start, YOU paved the way. Thank you 😁

[nickgibson]

Absolutely love the in depth motor work and info. Keep it up man