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Old M started, now what about Oil?

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Dumb Bob

04-25-2006 17:15:59

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Thanks to a lot of forum help finally got my old M started.Been setting for a good 3 or 4 years. Now,time to change oil.I poured in a lot of 10w30 to get it started,and I'll change to straight 30w next. But where is it going?Put in 8 or 9 quarts,and still didn't see oil when I took the cap off the pipe indicator.Oil pressure, however, is far as the needle goes to the right of the gauge.Way much pressure.Anybody got a favorite oil? I was using 30w Valvoline before it
stopped running. How about synthetic oil.Anyone ever try it?Don't think it comes in a straight weight, but the 10w30 is supposed to be good. Comments appreciated.

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Dumb Bob

04-25-2006 20:37:57

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 17:15:59

Well, on the same side as the carbuerator, and back toward the rear, there are two plugs with square tops. What might those be? Usually you can see oil in one of them when the plug is unscrewed, one sets higher than the other.

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captaink

04-26-2006 06:44:03

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 20:37:57

I�m guessing that the plugs you are referring to are the ones for the lift-all hydraulic pump.

Sit on the tractor. The oil fill for the engine is on the right hand side between the distributor (or magneto) and the fan shroud. It is a cast cover about 2.5 inches in diameter and kind of looks like a big wing nut.

The check for oil level are petcocks located on the oil pan below the frame again on the right hand side. Petcocks were standard however one may have been changed over to a dipstick, (mine was) but that dipstick is only about 5 inches long. Oil coming from the bottom petcock is enough, but should really come out the top after a fill up.

A good M engine will peg the oil pressure gauge to the right (75 psi) at medium to high RPM. This is not a problem.

Hope this helps.

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CNKS

04-26-2006 06:02:16

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 20:37:57

I have no clue--The only factory plug that is in the block is for draining the coolant. I suppose someone could have added a second plug to circulate the coolant for a block heater to warm it up before starting in cold weather. You do not check the oil level in the block, the block does not have an oil level, only oil for the pistons, cam, etc -- I strongly suggest you get an operator's manual. You sure you have FARMALL M?

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Nat 2

04-26-2006 05:34:22

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 20:37:57

I have no idea what you're talking about, unless you mean the COOLANT ("antifreeze" or "radiator fluid") drain on the side of the block. If you see oil in there, you're in BIG trouble.

There is no dipstick, and no way to visually check the oil by "looking in" anywhere. The fill pipe with dipstick behind the engine, under the gas tank, is for the hydraulics.

You check the oil by opening the two petcocks on the side of the oil pan under the engine. If it runs out the bottom petcock, you have enough oil.

Exact oil is not important, as long as it's good quality oil, and is rated for 30W, either straight 30W or 10W-30, if you're going to run the tractor in the summertime.

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CNKS

04-25-2006 17:33:29

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 17:15:59

Crankcase holds 8 qts. It will need slightly more than that to account for the oil held by the filter. Don't know what you mean by the cap on the pipe indicator, it is filled to the top petcock on the side of the pan. Sounds like someone put a pipe nipple and cap on it?. Put in 8 quarts, run it, and add until it comes out the top petcock. Synthetic is overkill for that engine. If you want multigrade use 15W40, perhaps 10W30 in the winter. In warm weather 30W is all you need. All major brands of oil meet the same specifications. Pick one and use it.

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RustyFarmall

04-25-2006 17:28:48

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 17:15:59

8 quarts is all it will hold. I don't know where you are checking the oil level, but an M does not have a dipstick. You check the oil by opening the petcocks on the oil pan. 10w-30 oil will be just fine as long as it is a good brand or from a reputable supplier.

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Yugrotcart

04-25-2006 17:26:09

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Re: Old M started, now what about Oil? in reply to Dumb Bob, 04-25-2006 17:15:59

U check the oil level on the side of the oil pan. Two drain petcocks, upper for full, lower for add. Open the top one, if oil runs out, it"s full. Keep the level between the two.

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