L2850 V1702 di > V2203 di conversion

^^^^^^^^Haha.

Well got the gasket and stud kit today, now onto vaca tomorrow and order OEM front and rear crank seals after i get the front cover off to see if the gaskets in the v2203 kit I got will work or not to mount the 1702 front cover onto the donor 2203 engine. Stay tuned, will be about 2 weeks now before anything else happens.

Ok made a bit of progress today since we are on the verge of full blown blizzard and am holed up waiting it out for the next 24-36 hours, got front covers off both engines and donor engine cleaned up to accept cover from old Oem engine.
Ran into a snag and hoping wolfman can give some advice.
In the pics you can see a difference between the two fuel pump drive shafts one is slotted for tach drive one isn't, also there is a difference in governor spring linkage and springs, old engine has an extra spring and hole in lever which hooks to a point on the front cover that newer engine doesn't have. I did not see the extra spring when I was taking the cover off and stretched it which you can see in the one pic.
Question is are the fuel / gov levers interchangeable or not and I assume I could easily slot the shaft for the tach drive.

Here is the new engine, notice no slot in fuel pump shaft for tach drive and the difference in the governor linkages, new engine has a different style mechanism under the gear and lack a hole for a spring in one lever you can see in the next pic.


This is the old engine, notice the slot in shaft for tach drive and the extra spring on the lever with a hole in it for the spring which the new engine doen't have "the spring is damaged and stretched due to me not noticing this when I lifted off the cover since the new engine didn't have this".



New engine front face of the block cleaned up ready for reassemble once i figure out the issues listed above. You may notice the front of the crank shaft is a bit shiney, i had to cut about a 1/4 inch off the tip in order to get a socket on it to remove the crank pulley retaining nut, i didn't have a deep well socket in 1 13/16" in 3/4 drive and it was too tight to get off with a wrench needed to use 3/4 impact to break it loose. Everything on the newer donor engine is extremely tight and corroded in place which is making disassemble a challenge.




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Maybe I have to take the pump drive gear off and exchange governor mechanism out underneath them?
Also appears the fuel pump gear is a press fit on the newer engine versus the snap ring retainer on the old engine.


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Hudson, while thinking things over last night after done working on it i was thinking about going this route as well, will have to look at the flywheel hsg and see if there is a spot for a speed sensor, if not i could rig one on the front crank pully, lots of industrial engines use this sort of tach system. I am thinking that i do not need to worry about the spring i stretched on the old engine either as I don't think its needed on the newer engine but need to look things over a bit closer to make sure.

Well found out the kumar bros eBay special gasket kit is not so good of a deal not impressed with gasket quality from what I see then I got front cover from 1702 torn down and cleaned up opened the gasket kit to start reassemble and found the first two gaskets I went to install one was not in kit for the oil filter head and then the water pump and front cover are different between the two engines as you can see in the pics. I just can't win.



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OK will check that too. The site and description is not as advertised after seeing what i got versus what they said it would cover.

Thanks for the heads up wolf man need to order the right front cover gasket too. Note to anyone following this, order a gasket kit for a 1702 not a 2203 since the parts I am swapping over are from the 1702 this is what one needs the gaskets to match up too. The parts are interchangeable but there are numerous variances in the parts I am finding out.
So now i have a hundred dollar gasket kit that will go to waste as most of the parts i need the worst are not in and some i will not use so i guess now i order everything i need individually from Kubota.
The kit also doesn't have parts to reseal the oil regulator cover as the 2203 doesn't have a removable cover.
That is why i started this thread so all can learn together first hand I guess. Too bad its coming with a higher price tag than i wanted it to do to lack of enough info / research on my end I guess.







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Could be, I am the same rather be on the safe side.