The units that are affected by this are the 42cc, 55cc, 75cc and 100cc. On your older design the spring and the spring seat were set apart on the motor. The new way is designed has two parts that go into a one part assy. And it will make putting it together a whole lot […]
Sundstrand Series 90-75cc Motor – Loop Flushing Spring & Seat Read More »
They are making the charge relief valve adjustable in a wide variety of pressure changes that are for 290m 348 and 406 PSI. It also changes the poppet and plug. It may stick out from the pump end cap alittle more than the older model. You will need to put in a gauge to tell
The new design is a press fit that goes into a groove in the new swashplate. It takes a special kind of machining for this so it will come as a kit. The parts are already assembled and used on 55, 75 and 100cc units. The parts will go in the vintage pumps. But the