My engine book does not give a block bore size for the light press fit block, serial number 71777 and below. For the heavy press fit sleeves, block serial number 71778 and above, the bore size for standard sleeves is 3.8123 - 3.8137. For .002 sleeves the bore size is 3.8143 - 3.8157. For .010 oversize sleeves the bore size is 3.8223 - 3.8237.
Light press fit sleeves need 25 to 75 lbs pressure to install, closer to the 75 is better. Pressures above 75 lbs is allowable for the last inch. Sleeve height above block is obtained by using shims. Height should be .001 - .004 with sleeve clamped down. Try to get no more than .002 between two adjacent sleeves.
Proper fit for heavy press fit sleeves is obtained by requiring no less than 750 lbs for at least five inches of travel. Pressures in excess of 2500 will require honing of the block to get proper fit. Sleeve height above block is .035 - .045. The sleeve installation tool will install the sleeve to the proper height.
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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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