Buck Marine Diesel

[timbillyosu]

Just wanted to get the word out on a new Diesel engine. The engine is called a Buck Marine Diesel.

I work at Buck Marine Diesel. We are currently developing a prototype diesel engine specifically designed for inboard marine use. We're still working on things right now. We have the first prototype fully up and running.

We are currently working on a 6-cylinder model with 3- and 4-cylinder models to follow. The engines have a unique two injector per cylinder design that will increase the fuel mapping potential exponentially and result in lower emissions capability. The family of engines will range from 150 to 700 HP and have been designed from the bottom up with a totally different approach. These engines are capable of exceptional cooling, allowing for substantial improvements in power output while increasing longevity.

The cooling path for this engine is a fraction of most engines. In the classic designs, coolant flows into the front of the engine, all the way back to the rear cylinder, then back out the front. This means that the rear cylinder is always receiving water that has already been heated by the previous cylinders.

In the Buck Marine system, the coolant flows individually into and out of each cylinder. This means that the all of the cylinders will be operating at the same temperature at all times. Using individual and shorter cooling paths, will also help eliminate hot spots and temperature stacking.

The engine also has a dual cooling system that uses both an internal coolant as well as circulating raw water from whatever body of water the boat is in. This cooling system will keep the engine running cool, allowing us to generate more power. If a problem should arise, the engine is also very serviceable.

The modular cylinder design allows for easy maintenance. With our design, you can change an individual cylinder, head, piston, and connecting rod without having to remove the crank case. We are estimating that the entire upper half of the engine (cylinders, heads, pistons, and connecting rods ) could be entirely replaced in about 2 hours time. Each of the aforementioned parts is also interchangeable with each of the other cylinders. In addition, nearly every seal is made with an o-ring of some form, meaning that the gasket set for the entire engine can fit in a gallon-sized plastic bag. These two factors will significantly reduce part inventory. A video of the connecting rod replacement procedure is available on the website.

While running under a moderate load at about 2000 rpm, the exhaust temperatures were around 1000 degrees F. We ran under those conditions for about 15 minutes. The hottest that the coolant pump got was about 150 degrees F. None of the 6 heads were over 140 degrees and all of them were within about 5 degrees of one another. You could lay your hands on top of the valve covers.

Check out our website for further pictures and videos.

Feel free to ask any questions that you have.
Buck Marine Diesel

This video shows us tearing down and rebuilding a cylinder in under 8 minutes
Engine Tear Down

Don't believe me? Watch it :-)

[misokat]

Pretty cool stuff, nice to see someone thinking outside the box, that teardown video was impressive, if your looking for a demo/test boat, i got a Henriques with a Old Yellow Cat that could use a new 400 hp powerplant...lol Good luck,Mike N.

[canyongear]

Im fairly mechanical..to be able to basically rebuild a diesel engine in a couple of hours from the top end is amazing. Also to be able to repair one cylinder head and one piston independently also just as amazing..in 10 minutes no less..best of luck guys!

Truely an innovative approach.

[JD5652]

Appears to be a modular design which does make it a lot easier to disassemble/reassemble.

Impressive......HOWEVER, I must comment that doing that with the engine on an engine stand, in a shop, with air tools, with two guys, is a totally different game that trying to do an in-frame rebuild in a boat engine room....

I'll look forward to hearing more from the Buck Marine Diesel.....

[timbillyosu]

Appears to be a modular design which does make it a lot easier to disassemble/reassemble.

Impressive......HOWEVER, I must comment that doing that with the engine on an engine stand, in a shop, with air tools, with two guys, is a totally different game that trying to do an in-frame rebuild in a boat engine room....

I'll look forward to hearing more from the Buck Marine Diesel.....

I'm not arguing with you at all. But, how many other engines can you teardown (not even rebuild) a single cylinder on an engine stand, in a shop, with air tools, with two guys, in less than 8 minutes? How many others can you do all that work without draining the oil? How many can you remove the connecting rod without dropping the oil pan?

We never said you could do it that fast in a boat. We are simply showing how easy the whole process is.

This engine is also about 10" narrower and shorter (in height) than other engines so you will have more room in the engine room.

[JD5652]

I'm not arguing with you at all. But, how many other engines can you teardown (not even rebuild) a single cylinder on an engine stand, in a shop, with air tools, with two guys, in less than 8 minutes? How many others can you do all that work without draining the oil? How many can you remove the connecting rod without dropping the oil pan?

We never said you could do it that fast in a boat. We are simply showing how easy the whole process is.

This engine is also about 10" narrower and shorter (in height) than other engines so you will have more room in the engine room.

I agree and I do like the design.....I was not trying to cast stones....just a common sense observation.

Can you publish any more detailed specs on the in-line 6-cylinder? I'm specifically interested in an engine that would come in around 600 HP....

(1) Engine weight
(2) Engine cubic-inches and HP to cu-in ratio
(3) Suggested gears/tranny
(4) Intercooled or aftercooled
(5) Recommended Overhaul frequency
(6) Any comparisons you can make to a J&T 671-TIB
(7) Any other tid-bits you can share

Thanks!

[timbillyosu]

I agree and I do like the design.....I was not trying to cast stones....just a common sense observation.

Can you publish any more detailed specs on the in-line 6-cylinder? I'm specifically interested in an engine that would come in around 600 HP....

(1) Engine weight
(2) Engine cubic-inches and HP to cu-in ratio
(3) Suggested gears/tranny
(4) Intercooled or aftercooled
(5) Recommended Overhaul frequency
(6) Any comparisons you can make to a J&T 671-TIB
(7) Any other tid-bits you can share

Thanks!

1: About 1500 lbs, ready to run, with fluids
2: as of now, about 80 ci per cylinder, so 480 ci for the 6, or 1.25 HP/ci.
3: Gears and tranny are up to you. The engine is equipped with a standard SAE-2 Bellhousing so anything that would fit that would work.
4: The engine is Turbocharged and aftercooled.
5: Overhaul frequency will be determined later. As of now, we'll still working to secure funding to take the engine into full-scale production. We are also still working out a few kinks with the performance.
6: I don't really know anything about the J&T 671-TIB, so anything I tell you would be a guess
7: Any other information that you would like to know that isn't on our website, please feel free to ask.

[nabeelah]

just going through your website from Fiji Islands,your technology is very similar to Scania-to me its almost 90% similar.I really like the modular approach,single cylinder servicing theory,fresh water,charge air cooling etc as in scania and thats why I specified scania.Really good to see your company thinking on the same line-i feel its time......!!

[timbillyosu]

just going through your website from Fiji Islands,your technology is very similar to Scania-to me its almost 90% similar.I really like the modular approach,single cylinder servicing theory,fresh water,charge air cooling etc as in scania and thats why I specified scania.Really good to see your company thinking on the same line-i feel its time......!!

There are some similarities, but I can guarantee you that there are some major differences too.

We currently hold 3 patents on this design with a few more in the works. I don't know a lot about the Scania engines, but I don't believe they are as easy to work on as this one.

[clt_capt]

When you are ready for production trials, let me know. I would be very interested.

I currently have Cat 3126s @420 HP - would be looking to go up a bit - 450+