Meh Max too

[Rowdy]

Mike: That?s really cool! I have been watching a YouTube channel called Robot Cantina. He?s in the process of installing and then tuning a turbocharged D722 into a 90 something Saturn. He?s getting 58 mpg and the 0-60 time is down to like 41 or 44 seconds. Not that I?m worried about that, but the tuning and turbo installation is what really intrigues me. After the rebuild, I may go and turbo charge it to his specs.

I have been researching what parts may be different between a N/A and Turbocharged D722 but there is no information out there. The D902 is commonly turbocharged and id essentially the same engine with a larger displacement. A ton of the parts interchange including the connecting rods. So I think that if I can differentiate the parts between the 902 turbocharged and N/A then see if they fit the 722, I might be able to upgrade the 722 and make it more reliable when turbocharged.

[mfenmor]

I love the Robot Cantina channel. That guy has such dry humor.
Here are my builds;

http://www.6x6world.com/forums/max-atvs/41843-finished-repowering-max-iv-kubota-wg750.html

http://www.6x6world.com/forums/max-atvs/41856-guy-goes-into-garage-grease-bearings.html

I did turbocharge and intercool my D722, and I followed some papers written by college students. I'll see if I can send them to you in PM.
Mike.

[mfenmor]

Mike: That?s really cool! I have been watching a YouTube channel called Robot Cantina. He?s in the process of installing and then tuning a turbocharged D722 into a 90 something Saturn. He?s getting 58 mpg and the 0-60 time is down to like 41 or 44 seconds. Not that I?m worried about that, but the tuning and turbo installation is what really intrigues me. After the rebuild, I may go and turbo charge it to his specs.

I have been researching what parts may be different between a N/A and Turbocharged D722 but there is no information out there. The D902 is commonly turbocharged and id essentially the same engine with a larger displacement. A ton of the parts interchange including the connecting rods. So I think that if I can differentiate the parts between the 902 turbocharged and N/A then see if they fit the 722, I might be able to upgrade the 722 and make it more reliable when turbocharged.

There actually is a D722T, turbo variant, but it is for Military power units. They can be found at mil auctions in light carts and generators, however a custom built one will have way more horse/torques.

[Rowdy]

I?m thinkin about trying to start a motor swap tomorrow. But it?ll be a 35 horse 2 stroke from a snowmobile lol. We?ll see if I can get it started in the snowmobile tomorrow?.

Should be a real simple swap as long as the carburetor isn?t gummy. It?s got a bunch of time on it, but it was free and if isn?t seized. I turned it over today and it pulled with good compression. Mice got into the wiring though. I?ll have to hot wire it unless I miraculously have a key that fits it. It?ll be interesting to see how it goes!

[Rowdy]

Well after messing with the donor snowmobile for a hour and a half I couldn?t get it to spark. I decided to try to get the better of the two snowmobiles to run. I was able to get it to start up but it dies immediately. Definitely a fuel delivery issue. Gonna order a carb rebuild kit for it. I guess I?ll settle for having a snowmobile to ride around on until I get the max done.

[Rowdy]

So after several days of deliberation, I?m considering trying to clean up the Mikuni carb from the snowmobile and fitting it to the Briggs to try to save some time and maybe actually get to drive this monster around before the snow completely melts off.

I was able to finally find the engine sticker on the bottom of the engine cover when I pulled it off to troubleshoot the no spark issues the other day. It is in-fact a 16 horse Briggs and Stratton engine with a model number of 326431.

[Rowdy]

I have been researching carb rebuilding and found that people are using pinesol to clean carburetors.

https://youtu.be/OcvDrUtz3r4

[Rowdy]

Saving this for the future, incase I decide to go ahead with the carburetor swap.

https://youtu.be/oKhMxeNO2cI

[Rowdy]

Well I finally had some success! I got the better of my two snowmobiles running! I had to clean the carb real good and then replace the drive belt. It still needs new skis and a few other things but I learned a lot. Maybe it?s enough yo get the other carb cleaned and put on the briggs engine?

[Rowdy]

I cleaned up the ?new? carburetor and it?s all ready for the install. I?m gonna have to build an intake adapter. I imagine that I?ll just use 1- 3/8? exhaust pipe and make a couple flanges out of some 1/8? plate. Then I?ll fit them, weld them all up and see if it was for all naught or not. I might end up having to buy a new throttle cable, not sure yet.

[Rowdy]

Earlier today, I fired it up and adjusted the carb so it?ll idle again. I had the idle set too lean. I should probably install the mikuni carb already. My procrastination has over taken me this spring?

[Rowdy]

Well I went and bought a Mitsubishi Minicab because the add said it had a 3 cyl Kubota diesel. Well turns out it was a 4 cyl kubota and it?s way too big for the max. I knew it was and bought it anyways because the price was right. So now I?m trying to figure out if I want to sell the motor and buy a smaller Kubota for the max or try to get the stock Mitsubishi 3 cylinder that I also got with the purchase, to run and put it in the max because it?s like 50 hp and is liquid cooled.

[Rowdy]

I finally got around to installing the mikuni carb. It runs but doesn?t idle that good. I also need to order a new choke cable and spring. It?s rusted and gummy inside the sheath. But it sure sounds good and revs really fast now. I think once I get it set up it will actually run pretty good. I?m going to order a wide band O2 sensor then I?ll order the appropriate fuel jet kit and cables. I?m getting kinda excited about it again lol.

[Rowdy]

I ordered a choke cable assembly for a honda rancher because the cable and the housing looked like it will work for the application. It was $10 so we?ll see if I can make it fit. Should work out though.

[Rowdy]

I installed the new choke cable and the carb is flooding out. I need to do more research on the type of jet kit I need and start trying smaller jets for the idle. Also the float is starting to deteriorate and is sending particles in to the fuel. That?s definitely not helping either.