Transmission noise

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cavingreer
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Transmission noise

Postby cavingreer » Tue Aug 18, 2015 10:23 am

The last week or so I've moved my '49 on it's own about 50' or so, from where I first unloaded it over to a tree where I jacked the front up and took the front wheels off, then from the tree to in front of my shed after I got the wheels on and the wiring sorted out. I noticed how noisy the transmission was and figured it was probably dry or full of water, especially with all the caked oil on the wheel hubs. Yesterday when I got it to the point of doing a little drive around I removed the fill plug and poured about 3/4 of a quart of SAE90 in it just to be safe. It quieted down some but as you can hear on the video it's still pretty darn loud.
https://www.youtube.com/watch?v=nIkkxiugf18
How much noise is "normal"?
This morning there was a good bit of gear oil that had run out around the wheel hub and down on the ground so I probably overfilled it. Still fully intend to drain it since I've run it a bit and fill with fresh oil, but wondering if I've got a bigger problem on my hands?
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Eugene
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Re: Transmission noise

Postby Eugene » Tue Aug 18, 2015 10:52 am

Did you drain the transmission/differential before adding the gear oil?
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cavingreer
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Re: Transmission noise

Postby cavingreer » Tue Aug 18, 2015 10:59 am

No I didn't. I figured it was probably dry or had water in it and just wanted something in there before I moved it around much. Planning to drain it and fill properly this week. I'd really like to flush it with something like diesel or crankcase flush before putting fresh in if I could do that without damaging it.
IT Guy by day, Rockstar by night, Amateur tractor restorer on occasion 8)
1949 Farmall Cub #94459 - Restoration Thread
"Organized chaos is better than no chaos at all"

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dgrapes59
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Re: Transmission noise

Postby dgrapes59 » Tue Aug 18, 2015 11:19 am

Your current leak is likely caused by overfilling; there is a plug on the left side of the transmission to indicate fill level (info in manual :wink: ). You can “flush” with diesel or kerosene, driving around to agitate it is probably best, drain good and refill with about 3 ½ pints (to fill hole).

Good luck,
David

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John *.?-!.* cub owner
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Re: Transmission noise

Postby John *.?-!.* cub owner » Tue Aug 18, 2015 11:27 am

To add to what has been posted, the transmissions are bad to condense water inside. A cub transmission hold 3 1/2 pints. It is not unusual to drain 1 1/2 gallons or more of water oil mix out of one that has not bee drained in a while. Note, the final drives each have their own oil supply.
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cavingreer
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Re: Transmission noise

Postby cavingreer » Tue Aug 18, 2015 12:07 pm

Good advice. I'll drain it, fill with diesel, drive around the yard, drain and refill to proper level
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1949 Farmall Cub #94459 - Restoration Thread
"Organized chaos is better than no chaos at all"

Bob McCarty
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Re: Transmission noise

Postby Bob McCarty » Tue Aug 18, 2015 3:59 pm

In the front and back of the tranny, there is a depression with a hole that allows gear oil to drip through. When you have the cover off, you'll want to make sure the two holes are open and not clogged with sludge.

Bob
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Re: Transmission noise

Postby pickerandsinger » Tue Aug 18, 2015 5:50 pm

To add to what Bob said , there is also a drain hole under the brake drum area in the differentials…( Usually clogged)…. :D ….Dave
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