Chrysler IIIH, Инструкция по сборке

Страница: 30 / 100

28. Set the Auto Finish to “ON”.
29. Measure all cylinders bore transverse and longitudinal dimensions.
30. Repeat the same process as needed based on the cylinder bore dimensions, for each cylinder in sequence while
setting the lower ring to one half of a division before the Zero Cut Off.
Note: This time the machine will run an additional six cycles if it dwells just prior to Zero Cut Off which will
keep the cross hatch pattern.
Note: The Technician must put their trust in the SV ‐ 10 to straighten the bore!
At this point the bores will be ~ 10 to 15 micron (0.010mm to 0.015mm) undersize after the block cools down.
31. Set the honer to Timed Cycles, and ensure the Auto Dwell and Auto Finish are set to “OFF” on both controls.
32. Hone each cylinder in proper sequence ~ 8 to 10 strokes with the Diamond Stones at 30 to 40 units load.
Note: Each Technician needs to acquire the feel for the amount of material removed during this process and
adjust the time to target mid spec. on the bore diameter. This may take more or less strokes to reach mid spec.
Each Technician needs to understand how much load on the hone head is required to meet the surface finish
specifications based on their hone and fluid interaction, i.e., this means they may require more or less load.
33. Once the Technician is satisfied the bore is at mid spec, the technician should switch the Diamond Stones out
replacing them with the Plateau Brushes.
34. Following the cylinder sequencing, cycle the Plateau Brushes for six to ten strokes in each cylinder at 10 to 15
units load.
Note: Each Technician needs to acquire the feel for their hone and fluid condition which will establish the
required stroke and unit loading to meet the final surface finish specifications.
Measurements
Bore Size:
Record bore measurements in the transverse and longitudinal directions at 0.5, 2.0, and 3.5 inch positions below
the cylinder block deck surface. Maximum out ‐ of ‐ round specification is 0.009mm and maximum taper is 0.015mm.
Revision 1 Section 4
Jun ‐ 18 Sheet 10
Cylinder Block Honing
IIIH Honing Operations