Whiring sound

farmall706 · Oct 2, 2010

I have a 706 gas, there is a whiring sound under the platform behind the clutch. I take it this is the Hydraulic pump? Is it normal for the sound? Also when I disengage the clutch to start the engine and then let the clutch out it changes the RPM a small amount? Is that normal?

Thanks

mkirsch · Oct 3, 2010

Your description of the sound is too vague for anyone to make a clean diagnosis. It could be normal, it may not be. 706's make lots of noises, especially after 50 years.

If it doesn't sound "bad" to you, like a clicking, clacking, grinding, or squealing, and is not overbearingly loud, it probably doesn't need immediate attention.

Trying to cure every little noise in these tractors will cost you a lot of time and money. Run it until it stops and then fix the problem.

Zachary Hoyt · Oct 3, 2010

The RPM change is normal because once you let up on the clutch pedal the disc, pressure plate, input shaft etc are turning which puts a slight load on the engine.
Zach

Whiring sound

farmall706

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mkirsch

Well-known Member

Zachary Hoyt

Well-known Member

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