[jdkskyking]

I started this thread in October 2020 because my engine got hot climbing a grade in Colorado. 

We’re lucky to have the Newellgurus site as a Time Machine so we can see where we were compared to what we know today. 

Nuts and bolts of my problem and maybe yours… you may not know it… 

I do not have a big enough hydraulic pump (VICKERS V20) to properly operate a ZF Steering Gearbox AND the cooling fan hydraulic MOTOR. 

The cooling fan was set at minimum pitch because of the limits of the V20 pump. More pitch needed, upwards of 30° to pull enough air through the cooling stack AND push the HOT AIR out of the back of the engine compartment. My hydraulic system ran on high ALL OF THE TIME. Some Gurus know the negative impact to the steering gearbox circuit when the system goes to or is always in high speed… 

How am I resolving this problem??? 
Slowly and expensively…. that’s how… and lots of headaches. I’ve replaced the radiator and CAC which improved the situation but still “masks” the root cause of the problems. 

So far I’ve added a PTO Drive to my Allison 4000 which will drive the new hydraulic pump. That’s a story in its own, I had to purchase a used transmission to get the housing and gears needed to drive the PTO. This was the first major milestone to the modification. 

Recently I had a new hydraulic tank fabricated. I need a 2” feed for the new pump and lots of return ports for the new control equipment to make everything work. 

What’s next? Finally getting to take a vacation in my Newell… after that it will be time to complete the modification… new pumps, control equipment, and hoses…. 

Here’s the new tank. 

                   

I had the tank fabricated in Miami, OK by a shop whose owner is a previous Newell employee. 

I’ll also have him fabricate a new coolant header tank but that’s down the road.