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
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