Posted by dhermesc on November 13, 2019 at 15:46:43 from (24.248.193.103):
In Reply to: Re: SC case winter oil posted by rustyfarmall on November 13, 2019 at 12:28:48:
Not needed on that kind of engine. When it was new the oil didn't have zinc (non detergent oil in the 40s and early 50s). The zinc is only needed with the high performance valve springs that put a huge amount of pressure on the flat tappet lifters. Most (all?) tractors do not have the high performance valve springs as high RPMs are rare occurrence with stock tractor engines.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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