camshaft gear

[Ivan Cook]

MY 641 HAS A RATTLE AT SLOW RPM THAT COMES FROM THE FRONT OF ENGINE . WHEN i lift the 3 point up noise stops until it hits top. Any thoughts on this ---thanks again IVAN

 

[Sean in PA]

I think someone posted something similar a while back. The hydraulic pump on your tractor is driven by a gear at the rear of the cam shaft. The cam shaft is driven by the crank shaft via a pair of gears at the front of the engine. The other person who posted something similar found his problem to be that the gear at the front of the cam shaft wasn't mounted/secured properly and apparently that gear was causing the noise.

 

[gatcchelguy]

Remove the hydraulic pump and check for a loose gear on the pump or the camshaft.