Valve cover mod, added an oil cap from an older valve cover. I had to cut it out of the old cover, turn it down on the lathe and then weld into the new cover. Worked great but I forgot to take a finished picture.

 

Looking good! Can't wait until you get it all sorted out and running!

 

Watching this thread with interest..... currently trying to get my v2203 running after sitting many years. Can someone tell me how the 3 barrels in the injector pump that are not pinned stay in the proper position? denso pump.

 

They are held in place by the pressure applied to the barrel when you tighten the delivery valve holder that the injector line attaches to. There are ports (on older units) on the side of the pump that you look through to make sure they don't turn when you tighten the delivery valve holder. They stay in place well I have not had an issue with them moving. Are you building a IDI or DI engine? On the newer pumps all the barrels are pinned.

 

thank you. IDI. I actually have two motors, both been sitting too long. One has busted block. Anyway, took pump apart because it was stuck, cleaned it, put it back together, understand the principal, just thought the barrels should be pinned, since the plunger rotates. One of my pumps doesn't have any pins, and one has no.1 pinned. And I did take the delivery valves out. Everything was gummed up. Soooooo that'll be my next hurdle.
thanks again

 

Good to hear about your MPG. Did you ever put the new truck on a scale. Curious how much it weighs. I am hoping my jeep comes in about 3500#'s. So you have a 3.08 rear, what is the OD gear??

 

Update: My DI truck is still running great, I get a consistent 35-38 MPG depending on how I drive it. Compared to the IDI engine in my first truck the DI has much more power, a lot more power! This truck will cruise down the interstate effortlessly with the A/C running. So much that I actually swapped rear gear to a 2.73 and it still has plenty of power. It has great off the line power and ample power through all the gears. Boost runs 25-27 PSI and EGT are well within the safe ranges. Love this truck!

Next Project: I bought a 27’ Party Barge pontoon boat the other day with a bad engine. The engine was completely submerged. It has (or had) the 3.0L inboard Mercruiser. Not being a fan of gas engines anyway, and having an extra engine sitting in the floor, well you guessed it, Yep a Kubota conversion. Should be fun!! Let me know what y’all think.

 

I think the Kubota will make an excellent marine conversion. Two things, check the reduction ratio from your gasser takeout, and are you going to make a wet exhaust for the Kubota or dry stack it? I was planning a Kubota replacement for a marine Perkins 4-108. But as the boat sits the perkins will run 3500 at cruise power for the boat.
Marine gears are pretty easy to get different reductions. Wet exhaust manifolds should not be TOO difficult to weld up
Have fun with it, that is a pretty large pontoon

 

Engines: The original engine, 3.0L Mercruiser was 135 H.P. producing 200 ft-lbs of torque @ 4400 RPM. The Kubota is about 100 H.P. producing 300 ft-lbs of torque @ about 3100 RPM. I would think, with the proper gearing and prop, I should be able to operate in the 250 ft-lbs of torque in the 26-2800 RPM range.

Gear Ratios: There are several gear ratios available for the Alpha One outdrives. I’ll start with what I have and work up but I’m figuring I will need the ratios like they run in the V8’s.

Exhaust: I’m thinking a dry exhaust above the water line. The engines aren't loud especially if you use a muffler. I avoid the wet manifold and I don’t it’s needed anyway because the engines don’t get hot. At least my trucks don’t

Cooling: I would prefer a closed loop antifreeze system. No winterization and doesn’t corrode the engine like the raw water. I’ll use a water to water heat exchanger and use the raw water pump already in the outdrive.

Intercooler: Planning a water to water intercooler, lots of cool lake water will be a great benefit.

 

Boat deserves it's own thread!

That sure looks like a SBC bell size on the back of that 3.0 liter... ? I thought I had read 151 Pontiac / Jeep on some boat boards, hard to tell from here. If it's a Jeep size there might be a market for more than one.