Predicament with the 1641

neilh419 · #1 06-25-2018, 03:27 PM

Hey Everyone! I don't think I've posted here for at least over a year, but I'm in a bit of a predicament. As some of you may recall, I have a 1641 with about 1200 hours on it. I replaced head gaskets three years ago. The following year, I did all the fuel lines, and pulled the fenders, and did the tank, bung etc...

Anyway, last year toward the end of the mowing season, she started to bog down on me again. I hadn't had any time to get to it, but messed with valves, Carb, and whatever else I could manage. I would up taking it to a guy I know, to have the Carb rebuilt. I got a call saying it was running great, but that now it wouldn't move. He drained the hydraulic oil, and refilled, and replaced filter. I asked if he used the actual Cub filter. He said he drained what he put in, and used a thicker oil, and a different filter, but that it wasn't doing anything. He drained that through a screen, and caught a spring, and piece of copper.

So, my question: is that part of the Hydrostatic transmission? Or have I missed something. I'm not sure it's worth rebuilding, if that's the case. He said he'd be interested in it for the motor, if I were to get rid of it... Any thoughts?

Terry C · #2 06-25-2018, 05:32 PM

Quote:

Originally Posted by neilh419

Hey Everyone! I don't think I've posted here for at least over a year, but I'm in a bit of a predicament. As some of you may recall, I have a 1641 with about 1200 hours on it. I replaced head gaskets three years ago. The following year, I did all the fuel lines, and pulled the fenders, and did the tank, bung etc...

Anyway, last year toward the end of the mowing season, she started to bog down on me again. I hadn't had any time to get to it, but messed with valves, Carb, and whatever else I could manage. I would up taking it to a guy I know, to have the Carb rebuilt. I got a call saying it was running great, but that now it wouldn't move. He drained the hydraulic oil, and refilled, and replaced filter. I asked if he used the actual Cub filter. He said he drained what he put in, and used a thicker oil, and a different filter, but that it wasn't doing anything. He drained that through a screen, and caught a spring, and piece of copper.

So, my question: is that part of the Hydrostatic transmission? Or have I missed something. I'm not sure it's worth rebuilding, if that's the case. He said he'd be interested in it for the motor, if I were to get rid of it... Any thoughts?

I would like a pic of what came out.
I think he sabotaged your tranny to get the engine.

J-Mech · #3 06-25-2018, 05:34 PM

There are only 4 springs inside that hydro, and I am going to say no way in hell they can end up in the rear end. If he found springs, I want to see a picture.

When you drain and refill, it isn't uncommon to have to roll the tractor in the direction you are trying to move it. Put the hydro in reverse, and push it backwards at the same time. It primes the hydro motor.

J-Mech · #4 06-25-2018, 05:37 PM

Quote:

Originally Posted by Terry C

I would like a pic of what came out.
I think he sabotaged your tranny to get the engine.

That's what I'm thinking. Or lied about what came out because he didn't know how to make it move again. If it drove in, it will drive out.

neilh419 · #5 06-25-2018, 05:46 PM

That's why I came here first. I know when I did hydro oil, and filter change last, I jacked up the rear end, and had to do some playing with it, before I could get it moving.

My dad has bought a couple Simplicity's off him, and trusts the guy. But I wondered the same thing...

I drove it on, and off the trailer. He did push it just inside his shop from the door in.

farmall fred · #6 06-25-2018, 06:31 PM

My thoughts, get it out of his shop. Take it home pull the rear cover drain the oil and put Hytran in it and the proper filter. Also get the parts he says he found in the oil and post a picture of them. I am with Jon on this one there is no way any of the springs could end up in the rear end. If he is not trying to screw you out of the engine at best he does not know what he is doing. Good luck. Did you tell him to drain the oil and change the filter?

Sam Mac · #7 06-26-2018, 07:10 AM

1641's have knob on the tunnel cover that must be pulled up in order to release the hydro when pushing the tractor. I wonder if he did that or if it's still in the release position? Knob is circled in red.

olds45512 · #8 06-26-2018, 08:41 AM

I did a fluid/filter change on a 1440 a few years ago and afterwards if refused to move, I tried all the suggestions from here and nothing help. What I did to get it working was start the tractor and then loosen the filter until oil started to come out and then tighten it back down, it instantly started to work after that. I had the tractor on jack stands with the lever at about 1/4 forward and the second I tightened the filter down the wheels started to move.

neilh419 · #9 06-26-2018, 09:06 AM

He said he used the release knob. If I remember right he has either a 1641 or 1440 himself. I would think he’d be familiar with it. Hopefully I’ll be able to go get it this afternoon and see for myself. I’ll update when I know something.

J-Mech · #10 06-26-2018, 11:15 AM

Quote:

Originally Posted by olds45512

I did a fluid/filter change on a 1440 a few years ago and afterwards if refused to move, I tried all the suggestions from here and nothing help. What I did to get it working was start the tractor and then loosen the filter until oil started to come out and then tighten it back down, it instantly started to work after that. I had the tractor on jack stands with the lever at about 1/4 forward and the second I tightened the filter down the wheels started to move.

It has a suction side filter.... That doesn't even make sense. You let air into the system to make it work?