Hello,can anyone tell me what a cam shaft and oil pump costs for a 4cyl.early 50's WD allis chalmers tractor.And how much should you invest in fixing something like this type tractor??Thank you...

A reground cam is about $100. but you may need lifters then, they run $5 each. it would be best to put new lifters or resurfaced lifters on a fresh cam. A used oil pump is about $100. prices are from Central TRactor. If the tractor ran good before. Alot of people with tractors this age get a rebuild kit for about $500. and put in that includes new Crank, pistons, con rod pins, rings Cyl. liners. bearing and rod shells. I only mention this because you are replacing the oil pump which may mean more damage was done.
It maybe still worth it because you know what you have. If you sell and go to an auction and pick up a cheapie you maybe faced with the same repairs a year down the road.

RJD,I just replaced the cam shaft in my WC (1941).I found it at a "used" parts dealer in Ohio for $50 plus shipping. I'm not sure about the oil pump but I should think the prices should be comparable.