Dropping the Oil Pan MF40

RedMF40

Well-known Member
Hello, new to this forum, but I have a great MF40 maybe 1957 or so with Continental z134 gas engine. Also has a great knock when I throttle up. Going to park it and drop the oil pan to start with. Any precautions I should take? Looks like if I remove quite a few bolts, the pan will come free without breaking the tractor in half. Possibly looking at in-tractor rebuild at the least. don't want to think about worst-case. Thanks for any help. Great tractor with Ford loader, very able machine.
 
A lot depends on what is knocking. If it's a rod or main bearing, really good chance the crank will be out of spec from the failed bearing pounding it.

But, you won't know until you get in there.

If you take the head off, and are not going to pull the cylinder sleeves, be sure to bolt the sleeves down with a couple of bolts and washers. The sleeves just sit in the block with an oring seal at the bottom. If not bolted down, they can ride up, break the seal, leak coolant, trash will get underneath and hold the sleeve up. Whole nuther can of worms to get them reseated!
 
Thanks for the advice/comments! I'll take it slow, see what the problem might be. Another poster told of a broken crank sometime back--tractor still ran. Hoping that's not the case but as you said crank may be history if excess wear from loose con rods/bearings. I'll follow up with progress, thanks again.
 

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