It's been awhile since I have had the filter out of my TO20 (the filter access plate is welded to the pan) but from what I remember there is only one small hole in the tube that goes through the filter. If you drill to many or to big of a hole you can drop your oil pressure past the center bearing. Sorry, I don't have a picture of the tube.
Re: TO20 oil filter down tube in reply to Dan S (NY), 03-19-2014 05:52:58
Hello everyone. I bought a TO20 last spring. When changing fluids I found the oil pan badly dented. previous owner just used a lot of silicone to close gap for oil access plate. I ended up using some fuel hose to make a large o-ring. Seemed to bridge gaps and has not leaked. Looking forward to getting to know my tractor better.
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