Hello Smitty and JD400 advocates! Just became a member as I have a similar conversion I did to my JD400. Although its not Smitty's turbo diesel, i replaced the Kohler K532 with a Kubota D722(20Hp) and used many spare 430 parts(motor mounts, air filter and kubota g1900 motor parts).
The machine is awesome, cuts through 6 inches of grass like butter. So I can imagine what this beast using the L3E will be like!!!
I used a Honda civic radiator(aftermarket 3 core), electric fan, Electric PTo clutch from a large husquavarna diesel mower($450)!!!, straight same gas tank but changed the lines and put venting and a fuel return on it using the JD430 gas tank vent and return setup. Let me know if you have any questions . I wish I had your skils with lathe and metal as I did very little welding and used kubota pulleys and the electric pto. Total costs as about $2000. bought the tractor for $450
Let us know how fast you can cut through 6 inches of grass!! It will be a piece of cake!
Will do, Smitty helped me out a lot.
I have also been using some parts off 430, 425 and motor mounts off a Jd
rear engine model, can't think of it. I first started this repower with the intent to use a d1105 out of a Turfcat I had, but found my l3e. I'm way excited to find out how well it pulls. My only concern is that the engine to the tranny has been upgraded. I'd like to work on hone rear end to beef it up, but money talks and so does time.
So, with your return fuel line, did your kubota have a return loop for the fuel? I have one on the l3e, but closed it, so I have no return line other than it returning to the fuel rail.