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B oil requirements
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ihscout View Drop Down
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Joined: 12 Jul 2011
Location: Northern CO
Points: 147 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ihscout Quote  Post ReplyReply Direct Link To This Post Topic: B oil requirements
    Posted: 28 Dec 2018 at 3:07pm
What oil should I be running in a B engine and the transmission with pto and pulley system integrated?
'40 AC B - My Pappy always told me "Use your head for something other than a tack hammer!" I did. It makes a great 16 pound sledge hammer.
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WF owner View Drop Down
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Joined: 12 May 2013
Location: Bombay NY
Points: 4890 		Post Options Post Options   Thanks (0) Thanks(0)   Quote WF owner Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 3:33pm
I'm sure you will get a lot of opinions on this. Here's mine.

If the engine has been recently overhauled and is "clean" inside, I would run any good multi-viscosity oil (10-30, 10-40, 15-40, etc.) If it's an old engine with all kinds of sludge and crap, I, personally, would try to run the same oil that had been run in it before, which was probably a straight weight, non-detergent oil.

For the transmission, I would use a hydraulic oil that meets the AC 821 Power Fluid specs.
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1955CA View Drop Down
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Joined: 10 Sep 2018
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Points: 588 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1955CA Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 4:20pm
I see for the transmission/hydraulic my manual says to use the same straight rate engine oil or any non-foaming oil.

So I'm wondering when I get the time to change mine should I switch to the hydraulic oil seeing it has some small leaks. or will the thinner hydraulic oil make it leak worse?

Just didn't know if thicker oil would be better when everything is old and wore out?

Engine wise mine has been rebuilt so I am going to use Petro Canada Duron HP 15W40.
It has a higher zinc level than Shell Rotella which will be good for the old valves and all the other values compare well to Rotella.
Not going to bother with synthetic in my CA as it won't be used in the winter or cold weather. My "other" orange tractor does winter duty.

If this isn't a good move, let me know. This is my first old and non-diesel tractor.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 85745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 4:49pm
Your on the right track with motor oil............ original hydraulic was 20 wt because that's all they had in 1940... Today most people use Universal Tractor FLuid... it is a 20 wt hydraulic oil with a lot more addatives than the old straight 20 wt... and it will be common with most other tractors on the farm that have hydraulic systems / hydraulic wagons / hydraulic disc lift / etc. ..... 2o wt is common on the hydraulics. If you use a THICKER oil it may not lift into the pump suction, and it might have trouble priming in cold weather.

Edited by steve(ill) - 28 Dec 2018 at 4:51pm
Like them all, but love the "B"s.
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1955CA View Drop Down
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Joined: 10 Sep 2018
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Points: 588 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1955CA Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 7:31pm
OK thanks Steve. I'll just get a pail of UTF then.

Or I have pails of synthetic Kubota Super UDT here. Is that ok for it?
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 85745 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 7:53pm
YEP........ any good hydraulic oil about 20 wt viscosity is good... The UTF is just the CHEAPEST stuff.
 
Do you use the ISO 32 or ISO 46 blend ?
 
32 is more like 10wt oil .......... 46 is more like 20 wt oil ....... either is very high quality and good for the Allis B.


Edited by steve(ill) - 28 Dec 2018 at 7:59pm
Like them all, but love the "B"s.
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1955CA View Drop Down
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Joined: 10 Sep 2018
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Points: 588 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1955CA Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2018 at 7:59pm
OK, thank you.

Maybe I will use the cheap stuff and flush it once or twice quick intervals to get it cleaned out so I know where I'm starting from.


Edited by 1955CA - 28 Dec 2018 at 8:00pm
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