1985 R Model Proper Power Steering Fluid Question

[mrsmackpaul]

Plenty of farm tractors used sae 30 oil in the power steering years ago

Most farmers put what ever they used in the motor in the power steering 

I think the main difference with oils for hydraulic applications is how they behave when they get hot 

Motor oil doesn't compress as well as hydraulic oil when it gets hot, this isn't usually a drama on power steering 

Some oils frotha lot and then don't pump properly 

I use hydraulic oil in power steering, I  figure if the seal does fail the small amount of oil added to the motor is like pissing in ocean to watch the tide rise 

 

 

Paul

 

[mowerman]

Thanks for all your help. Sounds like a plan.

[mowerman]

I’m starting to have Mechohaulic issue. My mind is failing. I had to think real hard to even remember where I got the box number. The vendor in San Jose was very helpful. He told me where to look at. I had to scrape and clean the area. I believe it was on the side of one of the side covers.

[mowerman]

I do remember it was in a really odd spot that I wouldn’t have thought to look

[Geoff Weeks]

The basic model is cast into the housing, the exact number (which contains all the things that make it fit one application) are stamp into the main housing around the area where the output shaft comes out of the box. Often the numbers are hard to read with the pitman arm in place, it blocks direct view.

IIRC you had a 392, but my memory isn't all that good either.

[mowerman]

I do remember it was very readable once I found it 

[mowerman]

And yes it’s a 392