Page 228
REPAIR INSTRUCTIONS, PART 1
4. Perform steps 1, 2 and 3 on each piston.
5. Check the oil control ring as follows:
a.
Using a thickness gauge, check for
excessive wear of the oil control ring
groove side clearance (Figure 237).
Position a
new
oil control ring in the
groove and insert a thickness gauge
between the ring and upper land of the
groove.
b.
Record the measurement and compare
the reading with the tolerance listed
under Fits and Limits in the
SPECIFICATIONS section.
For a new ring and piston, the oil ring side
clearance is 0.0016–0.0030 inch
(0.0406–0.0762 mm). For an old ring and piston,
the clearance should NOT exceed 0.0045 inch
(0.1143 mm).
6. Perform step 5 on each piston.
237
Figure 237 — Side Clearance Measurement
RING INSTALLATION
Identification markings on the rings should face
the piston top. The keystone ring goes in the top
ring groove.
Follow the directions on each piston ring packet.
1. To prevent distortion, use the proper size
piston ring expander, PT6587 (Figure 238),
to place the rings in the piston grooves.
238
Figure 238 — Piston Ring Expander PT6587
2. Stagger the piston rings so that no ring gap
is directly over the wrist pin bore, and no ring
end gaps are aligned over each other
(Figure 239).
1. Ring Groove Side Clearance
5-111.bk Page 228 Monday, July 10, 2006 2:26 PM
Summary of Contents for ASET AC
Page 6: ...TABLE OF CONTENTS Page iii TABLE OF CONTENTS 5 111 bk Page iii Monday July 10 2006 2 26 PM...
Page 14: ...INTRODUCTION Page 1 INTRODUCTION 5 111 bk Page 1 Monday July 10 2006 2 26 PM...
Page 23: ...Page 10 NOTES 5 111 bk Page 10 Monday July 10 2006 2 26 PM...
Page 96: ...COMPONENT LOCATOR Page 83 COMPONENT LOCATOR 5 111 bk Page 83 Monday July 10 2006 2 26 PM...
Page 99: ...Page 86 NOTES 5 111 bk Page 86 Monday July 10 2006 2 26 PM...
Page 100: ...TROUBLESHOOTING Page 87 TROUBLESHOOTING 5 111 bk Page 87 Monday July 10 2006 2 26 PM...
Page 140: ...MAINTENANCE Page 127 MAINTENANCE 5 111 bk Page 127 Monday July 10 2006 2 26 PM...
Page 153: ...Page 140 NOTES 5 111 bk Page 140 Monday July 10 2006 2 26 PM...
Page 383: ...Page 370 NOTES 5 111 bk Page 370 Monday July 10 2006 2 26 PM...
Page 479: ...Page 466 NOTES 5 111 bk Page 466 Monday July 10 2006 2 26 PM...
Page 480: ...SPECIFICATIONS Page 467 SPECIFICATIONS 5 111 bk Page 467 Monday July 10 2006 2 26 PM...
Page 505: ...Page 492 NOTES 5 111 bk Page 492 Monday July 10 2006 2 26 PM...
Page 513: ...Page 500 NOTES 5 111 bk Page 500 Monday July 10 2006 2 26 PM...
Page 519: ...Page 506 NOTES 5 111 bk Page 506 Monday July 10 2006 2 26 PM...
Page 520: ...APPENDIX Page 507 APPENDIX 5 111 bk Page 507 Monday July 10 2006 2 26 PM...
Page 528: ...INDEX Page 515 INDEX Index fm Page 515 Monday July 10 2006 2 48 PM...
Page 535: ...Page 522 NOTES Index fm Page 522 Monday July 10 2006 2 48 PM...