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Harry Ferguson Tractors Discussion Forum
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Oil pan dilemma

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John in MS

12-09-2007 11:12:32




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I inherited a 1950 TO20 that had been pretty well abused during its lifetime, and I have been slowing repairing the damage with good success.

The last major item was to replace the oil pan, which apparently had been severely damaged at one point. The filter access plate had been brazed to the pan, so there was no way to change the internal filter. When I removed the pan I found there was no filter mechanism at all, and permanent modifications had been made to the oil screen uptake so that it now occupies the place where I believe the filter mechanism should be. And there is just a stub on the bottom of the main bearing where the oil return pipe should be. Looking at the photos in my manual, it looks like the the filter access plate is held in place by a combination bolt-tube that screws into the main bearing oil return.

Because of the modifications made to patch rather than fix the damage, I am left with the dilemma of just going back to the old oil pan with no filter, or trying to figure out how all of the original oil pan lubrication stuff was set up. The photos in my manual don't give enough detail, and I'm afraid of doing even more damage if I start poking around in there. Any thoughts? Advice?

I can add photos of the mess if that would help.

Thanks
John

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John in MS

12-09-2007 13:58:35




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 Re: Oil pan dilemma in reply to John in MS, 12-09-2007 11:12:32  
I don't have the original parts, but the engine has been running fine the way it is for a long time. I thought about just going the frequent oil change route, but want to see how difficult it will be to restore it to normal.

It's dark and raining at the moment, so I'll post some photos of the guts tomorrow.

Thanks.
John



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gshadel

12-09-2007 18:23:02




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 Re: Oil pan dilemma in reply to John in MS, 12-09-2007 13:58:35  
John,
keep your eye on Ebay, TO parts pop-up on there all the time. Sounds like you need a oil pan before it"s worth doing anything else. TO 20"s & 30"s share a lot of parts, but in this case, they don"t. That filter scheme is unique to the TO-20. You are probably just fine to keep using the screen that was in there and no filter, the oil filtration in your TO 20 was not 100% filtered anyway, only the oil from the center bearing was filtered, the other 4/5ths of the oil was not filtered, but it was all sucked thru the screen going into the pump.

George

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Gerald J.

12-09-2007 13:07:26




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 Re: Oil pan dilemma in reply to John in MS, 12-09-2007 11:12:32  
I think I'd copy the filter scheme used on the Ford Ns and the Continental Y-91 on my standbay generator. E.g. an external canister. There's an oil system pressure port for the oil guage. Add a T there, maybe a pressure regulator valve and then a canister (say a Fram C3) on the pressure bypass line with return to the rocker arm cover (which will give the rocker some oil they aren't getting now). That way the regulator bypassed oil would be filtered in the bypass oil filter canister. Otherwise it may take a flow restriction in the filter circuit to keep from dropping the engine oil pressure.

Gerald J.

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Jerry/MT

12-09-2007 12:19:40




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 Re: Oil pan dilemma in reply to John in MS, 12-09-2007 11:12:32  
Do you have the parts to go back to the original configuration of the filter if it was possible to do so? If you don"t, you may have to try to do that BEFORE you try to fix it. It may not be that easy to locate these parts. By all means post the photos( a pictures worth a thousand words.) But if that is all that"s holding you up from getting the tractor going, remember that these are partial flow filters, so you might consider oil changes at 25 hrs of opperation/or very three months until you can install the filter. Use a good quality detergent oil.

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gerard

12-09-2007 16:42:57




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 Re: Oil pan dilemma in reply to Jerry/MT, 12-09-2007 12:19:40  
Couldn"t agree less. Steer away from high detergent oils on engines with poor (or no) filtration. The purpose of detergent oil is to keep all the muck in suspension, to be taken out by the filter. Poor filter or none at all? You"re "lubricating" with grinding paste. The old non-detergent oils let the muck precipitate out & lay as sludge in the bottom. That way it didn"t circulate around in suspension, adding to the wear. Horses for courses.

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