the only 1850 part that is the same is the clutch housing that bolts on the front of your 2/3 speed. Flywheel, flywheel housing, pto hub, is all different than what you need.
I've got a 2 disc 13" in my 1655, I used a 2-180 clutch just because I wanted a "quiet" 2 disc. I had to make a thin flywheel, modify the pto hub, machine the clutch housing, do a little work to the pressure plate, use a longer 1550 pto shaft, and use a longer 3 speed imput shaft and then shorten it some. It's 15 pounds of chit in a 5 pound box.
If you don't mind the typical 2 disc rattle, it's a piece of cake to make everything fit.
Looking at your 16 bell housing would make it look tight, the housings normally used in a repower are alot bigger.
Do you have a 2 or 3 speed? Going to more than one disc means you'll have to change the imput to the 1 3/4-27 imput to get longer splines, and you'll have to change it to get a 14" single disc.
If you are pulling a 14" would be minimum. Tractor clutches are a whole different world than truck clutches.
Awesome info...I don't see myself modifying one to fit a Cummins anytime soon, as most of our Olly's are more oddball tractors like tricycles, or 4wd's or stuff like that, but awesome info nonetheless!
Chris
Usually 120-160 horse, 185 isn't unusual, assuming you guys checked the pressure. Some guys can break a anvil with a glass hammer though. Most guys can understand not to actually use it as a 160 or 185 horse tractor, but the extra powers is nice to have handy.
Nothing really against the perkins, they should have used a injection pump that wasn't outdated in the 40's though. Putting a Roosa and a Holset on one makes it a completely different tractor. Repowering with a perkins makes a frame swap abolutley necessary. Biggest thing is parts availibity. Usually a guy wants to use a danged combine engine, and all the parts to make it fit a tractor nice is a chore to round up. Dodge truck engine is similar, but the necessary parts to make it fit nice is alot better.
And I'm not a huge fan of supporting Caterpillar.
Hi All,
I'm new to the site and have been looking for guys that have powered up some old Olivers. I have an 1850 myself that's been in the family farm for many years. I'm looking to do some mods to start turning it in to a pull tractor but yet still reliable to do some field work. I'm curious about adding a larger/better fuel pump. What info is there on that, I see you mention a Roosa?
Thanks
Is there any easy way to tell without disassembly?
Not that I recall (seems to sing smoothly throughout), but I will go out and double check. Do you have any more info on your Oliver 9724VF350 or your services? Thanks
9724VF350
Thats a sharp tractor I had a 1650 that I was going to put a cummins in but I already had one friend pulling a cummins and another one building one. I ended up taking the lazy mans way and building an IH. You probably know the answer to this but I think I heard it somewhere. Could you take the 1006 series perkins (372ci I think) that have the A pump and put it into the oliver chassis. That would allow an even better pump, crossflow head?, and more cubes.