Fluid for instant reverse 205 massey

Chris205

New User
Iam looking to get some sort of answer about what is the correct fluid for the instant reverse trans on a 1961 massey ferguson industrial tractor. I have read about everything I could find on the internet and it seems like there are several opinions/options,hydraulic trans fluid, permatrans(dont seem to be able to find that one locally) dextron II.
The problem I am having is the machine runs smooth once F or R is engaged with pedal but it kinda jumps in versus a smooth transition into motion. I have read that hydraulic trans fluid, 303 from local bond auto is what I just put in it drained and changed, will lock up the clutchs faster and make it more jumpy into gear. Where as dextron II atf is a more traditional automatic trans fluid and will allow some slippage upon engagememnt and provide a smoother transition into motion. If i want to go to dextron can I drain as much out as I can and mix with whatevere HTF is left in system? Should I pull sump cover and clean the screen in bottom of trans maybe that is plugged and making it jump. Dont really think its major internals wrong as it goes fine. the old fluid was very milky so maybe several changes would also help.
I have also disassembled the foot pedal assembly, cleaned, lubed,tighted up slop that was in it. I think it works very smooth now.

I think I may have already posted something to this affect...and sorry for long rambling post
Any help and opinions is greatly appreciated
Thanks Chris
 
My 205 acts exactly the same and also wants to creep forward when in the lower gears. I have been using it like that for the over 10 years I have had it. I use regular tractor hydraulic fluid in mine. Can't remember now for sure but I think Big Dean told me to use that.
 
We use the red Dextron III ATF fluid in our 205 with no problems. They can be jumpy if the RPMs are up when you engage the forward or reverse foot pedals. Cleaning out the contaminated fluid and checking the filter may help.

Larry
 
Okay great info maybe it is just the nature of the beast. I will clean the filter and drain and change the oil again with the HTF that I have and go from there. There are no brakes on the machine yet I will be fixing them this winter or sooner,so the jumpyness is a little hard to deal with especially when loading my 1 ton.
Thanks Chris
 
Big Dean once commented that one of the primary reasons for the jumpiness is sloppy bushings in the control linkage and that there should be no play for smooth engagement. After all these years it's likely they're worn. Check out the external portion and see if there's any play. IIRC, there's two bushings on the inside, plus the one that goes through the housing that require a split to replace. Ours does it too, if the rpms are at all above idle, especially in the higher gears and I know there's play in the linkage. One of these days ... MK
 
I did remove disassemble and thoughly clean the foot control and added a thin bushing in the rotating assembly as well as a couple new pins to try and tighten it up some. I was unsure just how tight I should go with it so there is still some play there. Think I will take it off again and try to tighten it up some more. The spring that is on it looks a little junk to be quite honest appears to be something someone added at some point. Maybe one with a little more presser would help make it a "square up" into position if that makes any sense.
The tractor also has a backhoe on it so that makes the jumpy action even more hairy I need to add some weight to the front to help keep it planted on the ground.
Thanks Chris
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top