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jimf in mo 06-19-2012 21:20:42 75.13.142.241 Report to Moderator	Working on a 59 961 and have a couple of questions. It has a serious oil lesk in the front of the trans. Figured its got to be the seals. I split the tractor and pulled the seal retainer replaced the seals and ready to reassemble. Noticed a notch on the back of the seal retainer but dont remember seeing anything on the mating reainer Since the tractor in the country I cant look now but thought someone might know if the notch goes up or down when reinstalling. Next gas gage sending unit arm broken so i want to replace it. The tractor was converted to 12 v do I need to find a 12 v sending unit or will a 6 v work. I'll probably have some other question later. Thank in advance for the help. jim [Reply]   [No Email]
jimf in mo 06-20-2012 20:22:30 75.13.142.241 Report to Moderator	Re: 961 questions in reply to jimf in mo, 06-19-2012 21:20:42   Thanks to all for the response. After installing the new seal I believe it to be a drain for oil to return to the trans sump too. in talking with folks around my area I get the same wide responce about the sending unit, Some say you need 12v other say it will work with a 6 v sending unit a 12 v gage [Reply]  [No Email]
Dean 06-20-2012 06:21:07 67.172.15.77 Report to Moderator	Re: 961 questions in reply to jimf in mo, 06-19-2012 21:20:42   You will need to replace both the sending unit and the gage because the aftermarket sending units are not compatible with the OEM gages. Be certain to specify 12V units. Is the "notch" in the seal retainer a drain back provision? If so, it goes toward the bottom. Dean [Reply]  [No Email]
awhtx 06-20-2012 07:47:12 96.226.59.78 Report to Moderator	Re: 961 questions in reply to Dean, 06-20-2012 06:21:07   The "notch" may be an access point to hook the seal with a seal puller for removal. If so it won"t matter where it goes. [Reply]  [No Email]
DollarBill 06-20-2012 06:07:26 216.23.3.170 Report to Moderator	Re: 961 questions in reply to jimf in mo, 06-19-2012 21:20:42   jimf in mo said: The tractor was converted to 12 v do I need to find a 12 v sending unit or will a 6 v work. The gauge will fluctuate with the 6 volt units but for it to be accurate, Ohm's law requires that you change them to 12 volts. This post was edited by DollarBill at 01:53:23 06/21/12. [Reply]  [No Email]
Sean in PA 06-20-2012 04:44:30 71.224.102.32 Report to Moderator	Re: 961 questions in reply to jimf in mo, 06-19-2012 21:20:42   The gas gauge sender is just a variable resistor that varies its resistance as the float arm moves. I'm not that familiar with the details of the old 6 volt electrical systems, but generally the gauge is hooked to power on one side and the other side connects to the sender, which varies the resistance between the gauge and ground depending on the position of the float arm, and the gauge gives its reading based on the amount of current that flows through the meter which changes with the resistance. I have never heard of anyone having to convert their gas gauge sender when converting from 6 volts to 12 volts. Depending on how the gauge gets its power, You may need to change the gauge or put in some sort of voltage regulator that would drop the voltage going into the gauge down to 6 volts. There re a lot of folks on here that are more knowledgeable than I am about 6 to 12 volt conversions and hopefully one of them will jump in and correct me. [Reply]  [No Email]
Larry NCKS 06-20-2012 03:36:45 50.96.0.82 Report to Moderator	Re: 961 questions in reply to old, 06-19-2012 21:20:42   can't help on transmission, but if you put a 12v sender in you'll need a 12v gauge. [Reply]  [No Email]