580 Super K very sluggish forward and reverse

[MaverickMed]

Hey Folks. We’ve got 1992 Case 580 Super K. Not sure of the other specs. It has started moving reeeeeeally slow, both in forward and reverse. If you rev it all the way up, it will snail along and then gradually it seems like something engages and then it will start moving at a normal speed. Thoughts? Any and all info is greatly appreciated. Thanks!!

 

[alrman]

Welcome to HEF @MaverickMed !

Assuming you have the later transaxle - with 4 speed shift lever coming out of the dash?
Also assuming you have checked the oil level & it's OK?
Also you are starting off in 1st or 2nd gear & not 3rd or 4th?

Does it leak any oil while parked overnight?
Check the oil suction pipe between the transaxle & convertor for loose clamps, as it could be sucking some air through them.

You may need to carry out some pressure tests, do you have a service manual & you will also need a 500psi test gauge & some fittings?