Briggs & Stratton V8 part 11

[@RussellBooth1977]

The cylinder head likely needed cooling fins but since you have almost completed your water cooled version that's an even better idea !

[@Desmouffe]

👍

[@Lee01Mr]

Ah the hidden gem builds on KZbin. You're a inspiration sir! Everything is possible as long you believe in it. Keep up the good work!

[@Desmouffe]

Thanks

[@1toonhead]

With your overheating issue I would look at keeping air cooled but make it more efficiant. Look at more powerful cooling fans and mayby a oil cooler for the engine oil. Everything helps. I'v seen Deutz done a similar thing to their engines and they run for ever. Keep up the cool videos to, your a true engineer and many can learn from you.

[@blanchae]

Definitely add an oil cooler. I don't think those muffin fans are flowing enough. An off the wall idea is to float the existing cylinders in water. I don't know if it is possible to make a watertight compartment around them.

[@Desmouffe]

There are many solutions but now the watercooling has got in to my head and I can't get rid of it.

[@bobod830_9]

​@@DesmouffeI saw someone use the original air cooled cylinder and just weld a jacket around it. It was a Harley Davidson I think.

[@Desmouffe]

@@bobod830_9 That was my first thought, but I ended up in making new cylinders. Right now I have a working engine. I don't want to jeopardize that. Even if it's a lot of work it seems like a fun project.

[@marcw2604]

Wow There Is Not Enough Obscure Builds like this on KZbin Keep up the Awesome work

[@Desmouffe]

Thank you. I will try

[@The3chordwonder]

If only there were more engineers such as yourself. I find it refreshing that you say it as it is, also. That is definitely the best sounding B&S enginer I've ever heard!

[@Six4691]

Thoroughly impressed with your ingenuity and skill, can’t wait to see the new design!

[@Desmouffe]

Work in progress

[@jonlund3161]

A "quick" way in getting to watercooling could be weaving copper pipe in between the cooling fins. Each cylinder would be connected in parallel to in and out from the cooling. Not as effective but maybe quicker.

[@Desmouffe]

That was on my mind but there is only space for a "brake pipe" . Not enough.

[@Fix_It_Again_Tony]

What if you milled all the fins off the heads and make some aluminum blocks to bolt to the flat surface that remains. Or just make water cooled heads. You could try it with just the heads and only move to adding water jackets to the cylinders if necessary. It's only a half dozen HP per cylinder.

[@Desmouffe]

@@Fix_It_Again_Tony I think the cylinders are in greater need of cooling than the heads. The heads are just a lump of metal, no moving parts. As long as they doesn't melt.

[@williamdejeffrio9701]

Enjoying following this build. I must say I am impressed by every part of this build, but I am most impressed by your tenacity...you don't give up!

[@shawnmrfixitlee6478]

If anyone can do it , I bet you can ! I love your builds .. Enjoyed 👍👍

[@BruselskySluzebnik]

This bad boy is the most American thing i have seen.

[@leop9021]

Fantastic channel. Thank you

[@AraCarrano]

Wonderful, all that is needed now is a set of 180 degree headers.

[@kennynelson2269]

This is the best build series ive ever seen on KZbin or any other platform.. cant wait to see how it turns out if you get the opportunity to do it.. good luck

[@Desmouffe]

Thanks

[@georgemason8521]

This machine sounds so nice. Goes well with the B24 push mower. Work of imagination. Beautiful!

[@Desmouffe]

Thanks

[@IrenESorius]

Cheers,, 🍻😎👍‍‍👍‍‍

[@caesar1295]

This build just keeps getting more interesting with each video. Water cooled is going to be some work but lucky for us we get to watch your mind at work. Brilliant as usual Sir.

[@Desmouffe]

Yes, it will take some time if I ever get there.

[@TSRGarage]

Thanks for the videos. This engine is amazing... now going water cooled.... wow

[@Desmouffe]

I'm beginning to regret that I said that. Now I must do it...

[@davezul4396]

Love the cackle on startup! I’m anticipating it to switch over from fuel to nitro!

[@Desmouffe]

It was a cold start after a couple of weeks.

[@BigDaddyTimberWolf]

First! Love the way that mower sounds.👍

[@banditeastlick2471]

It's still an incredible build.

[@pameladunn7346]

sounds awesome ....

[@Mues_Lee]

Awesome sound! :D

[@cantiswolfe255]

WATERCOOLED!! YES!! I can’t wait to see how this comes out. I’m very curious about the iron sleeves and how you will make those parts and assemble them!! Rock on!!

[@Desmouffe]

No pressure.....

[@battlebotts]

Water cooled is the way to go. Good luck

[@Desmouffe]

I have known that all the time but was afraid of the work. Still am

[@goranjacobsson-ns7jn]

Du höjer ribban ännu en gång,,,,,,,du är helt jäkla otrolig😱😱Dags att köra förbi snart😍

[@Desmouffe]

Det är inte utan att jag ångrar lite grand att jag gick ut med att nämna vattenkylningen. Nu måste jag ju... Kom du. Det är alltid kul

[@raymondengineering8951]

Do it, Do it, Do it. 🤙🏻🤙🏻🤙🏻

[@Desmouffe]

I will, I will, I will.....

[@fuelrail]

This build is so cool... mvh Matte

[@Desmouffe]

Tack

[@malcolmgeorge]

I kind of figured those computer fans weren't going to be enough. Maybe a belt driven supercharger just to blow around the cylinders?? :D

[@thundermite1241]

I wonder how id perform in a golf cart chassis

[@jsaurman]

7:28 Instead of rebuilding the entire motor, I have an idea. There are plenty of water cooling blocks readily available for computer processors, video cards, etc. Couldn't you buy ten or twenty of those and bolt them to the existing engine? That way you'd get the benefits of water cooling, but without all the hassle of remaking the cylinder heads.

[@CTSHOEBOX]

How hot is hot? I would try bigger electric fans.

[@Desmouffe]

Of course that would be a more simple solution. But I want to see if I could make it watercooled. It's easyer to control the temprature.

[@Desmouffe]

There is not much room between the cylinders or anywere else I'm afraid. And I look forward to "the hassle"

[@xVBIRDVx]

water cooling! DO IT!!!!

[@Desmouffe]

I'm on to it....

[@huzudra]

I think maybe just water cooled heads would be enough to keep temperatures under control or even just partial water cooling of the cylinders. You could experiment wrapping some aluminum or copper tubing around the cylinder of a single engine between the fins to see how much it affects running temperature, it could be enough cooling that it would work to have coils of tube around the cylinders between the fins, not in series but in parallel. Running the pump will be interesting, could be variable speed electric with flow based on water temp or fixed speed belt driven mechanical.

[@Desmouffe]

No, I don't think cooling just the heads will be enough. Ther are no moving parts in the heads so they can get as warm as they want. In the cylinders I have a moving piston and moving valves that needs lubrication. And no oil works well over 150 dgr C. So, cooling jackets on the cylinders and heads with an electric pump. If it's not enough, just put in a bigger pump.

[@huzudra]

@@Desmouffe Yes I understand the flat heads have no moving parts but they are well attached the hot cylinders and do sink heat from them, with a large enough gradient heat will move to the cooler head from the hotter cylinder below it, but perhaps you are correct it would not be enough. Since most of the combustion happens in the head potentially a lot of heat could be pulled out up there as the heat made by compression is fairly small and the expanding exhaust gasses are losing heat as the piston goes down. Just a thought on possibly an order to do things in that could be easier and might work 'well enough' to overcome the issue. :-)

[@Desmouffe]

@@huzudra I think the cylinder head gasket will make it more difficult for the heat to move up in the cylinder head. I have had cooling problems with all my engines so this time I want to do a proper job. It's a lot more work but that's what keep me going. I think it´s fun.

[@huzudra]

@@Desmouffe Look forward to seeing the results and design process. Using a copper gasket could help with heat transfer from cylinder to head. Do you think a mono-head approach or doing individual heads? As for the blocks and cylinders perhaps it could be built like a Mazda rotary where the blocks stack next to each other with bolts to compress O-rings between them to seal in coolant. It could be made modular, a V10, a V12, limit is only how long the bolts and crankshaft can be.

[@Desmouffe]

@@huzudra Yes, a copper gasket would work but my mind is set on full water cooling. Working on the wooden models for the mould right now. The cylinders will be made individual and stacked together. The heads will be one common for four cylinders, split in two so I can make channels for water.

[@scotcoz]

Try red line oil first ,also front fan configuration

[@Desmouffe]

Why not?

[@clockboy8638]

Will this Briggs V8 tractor cut grass?

[@Desmouffe]

It will never cut grass. It is totally useless but it keeps me busy.

[@prancstaman]

Looks like cooling fins are going in the wrong direction for it to cool properly. Water cooled might have to be a must. Maybe make each individual cylinder it's own water jacket instead of making all new stuff. Oh, since you making stuff, the cam could use a little tighter lobe separation. Make it say potato, LOL.

[@Desmouffe]

As far as I am now, there will be individual cylinders. I can't cast a complete cylinder block.

[@DatBlueHusky]

you can use super powerful computer server fans

[@Desmouffe]

I could, but that's no fun...

[@rogermarshall8991]

Mabe Look at the Deutz Diesel cooling system. Belt driven fan & air cooling ??? Remaking a water cooling block seems a bit drastic ? Instead, Mabe upgrade the belt drive system to run a straight drive on the belts ? Great build 👍👍

[@Desmouffe]

I know, but I WANT to try making it watercooled.

[@1parky2]

Model boat engines use water cooled heads and they work fine. Would be a lot easier to make

[@Desmouffe]

It shurely would. Have to look in to that but the cylinder/piston are lubricated by oil, and oil over 150 dgr C don't work very well.

[@paulheitkemper1559]

why have that fan on the back? if you aren't directing that air over the cylinders, then it's just robbing power from you. you could turn down the blades on the lathe, leaving the rest of the flywheel.

[@Desmouffe]

It's a flywheel and I want the rotating mass. The fins are not helping me but right now it's in balance. On my radial engine I did the mistake to have a flywheel with not enough mass so I left it as it was. And I also had the choise to make some kind of shroud around that fan but that did not happen.

[@paulheitkemper1559]

@@Desmouffe very good points. Thank you for the reply!

[@ponkkaa]

You need to add a cup holder. It isn't a proper vehicle without a cup holder. It sounds as though it has more HP than my Subaru.

[@Desmouffe]

It is more noise than power...

[@NitroGnome]

Well.... make it oil cooled...

[@Desmouffe]

Oil can take higher tempratures so why not. But if you get a leak it will be messy...

[@grobischmiede9301]

👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻