I havent put enough hours on this machine to change the oil yet but will be doing that very soon.
Did you change coolant, fuel filter, Hydro oil and filter etc? And grease the 35-40 zerks?It appears that 5w40 fixed the issue. Oil pressure light goes away in 1sec when cold now.
Typicaly I do a full service when I buy something too. But the former owner said he just had it done, all the signs showed this also. New filters, clean fluids and the such.First thing one a new to me car, truck, tractor etc is a complete fluid and filter change, grease all zerks etc.
The only thing I haven't done that on is my TC40D; I got it off consignment, where the dealer had done a full service.