1550 Plowing

super99 · Oct 23, 2021

I went to a plow day today, pictures are on Tractor Talk. I ran in 3rd with 3-14's and had to go to under drive quit a bit, some of that black dirt was tough!! When running in direct, there was a lot of blue smoke from the crankcase vent, Just before lunch, the oil pressure fell to 20#s and started jumping all over. I checked it at noon and added a quart and a half to fill it. 4 times, I pulled the hydra power lever to under and it stopped moving, had to step on the clutch and then I could feel it grab and go. That kinda confirmed my thoughts on the motor, but I wasn't planning on a hydra power also!! Will a over/under fit in a 1550?? I'll take my chances with a used one before buying a new sprag clutch. Still a good day!!!

ziffel · Oct 24, 2021

We have 5 Oliver's at the farm ...1850 D..three 1850 G..and a 1650 G. So far three of the hydra power units have failed and have been removed and replaced with eliminator kits. (straight drive shafts) That still leaves 6 forward gears and two in reverse. None of ours need to plow or chisel plow anymore so not having the hydra power doesn't matter. And not having a tractor that can free wheel on the hills is a safety factor with hired help AND it makes the next clutch job a lot easier. No more need to pull the engine. I have all the part numbers for an eliminator kit if you want them.

rrlund · Oct 24, 2021

I can't speak to whether or not an over/under from a late 1650 or 1655 would 'fit', but no 1550s or 1555s left the factory with an over/under as far as I know. I don't think it was even an option in them.

300jk · Oct 24, 2021

The hydra power drives and the over/under 3 speeds are quite a bit tougher in my opinion than IHs torque amplifier. We have tractors with both. Doesnt seem like as many Oliver guys have many issues with the 2 and 3 speeds compared to the number of torque amplifier problems. Could just be because of more IHs out there. Just my thoughts and opinions. I was just at a buddies yesterday and he was showing me his 1800A that he put a Cummins repower in . Tractor had no 2 speed but he found a good one for around 400 dollars and put it in. I know they are expensive to rebuild, but I would not delete it. Way too handy to have the gear selections for many different situations. There are a couple guys here in the Oliver photo adds that deal with a lot of parts tractors. Id call them.

OLWHDA · Oct 24, 2021

I sold my 1975- 2-105 that was on its 4th set of 18.4x38 tires, hours unknown15,000+ and the over-under 3 speed only had a rear seal replaced in all the years I owned it, bought it new, sold at retirement sale Dec 2018. All row crop farmer.

super99 · Oct 24, 2021

I'm not sure if the same unit works in the small frame and large frame tractors. I have a spare that I think came from an 1800 that I could put in or rob parts from. Not going to delete it, it's as handy as a pocket on a shirt.

oldwrencher · Oct 24, 2021

over /under from a 1650/1655 will fit the 1550 as I did this for a friend. He really likes it over the two speed. 1750 up has a big shaft and different bell housing and has to be made to fit.Use a pusher nut and short piece of copper tubing flared on one end to connect the cooler lines to and if need be a compressed ferrule to hold the hose on the copper. the chain coupler is the same and the shifter can be made to work.

annable4 · Nov 7, 2023

(quoted from post at 07:55:59 10/24/21) We have 5 Oliver's at the farm ...1850 D..three 1850 G..and a 1650 G. So far three of the hydra power units have failed and have been removed and replaced with eliminator kits. (straight drive shafts) That still leaves 6 forward gears and two in reverse. None of ours need to plow or chisel plow anymore so not having the hydra power doesn't matter. And not having a tractor that can free wheel on the hills is a safety factor with hired help AND it makes the next clutch job a lot easier. No more need to pull the engine. I have all the part numbers for an eliminator kit if you want them.

I am looking for the the numbers for an eliminator kit for the 1650 gas Oliver if you could send them to me please. [email protected]

1550 Plowing

super99

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ziffel

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rrlund

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300jk

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OLWHDA

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super99

Well-known Member

oldwrencher

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annable4

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