DESCRIPTION AND OPERATION
Page 55
A second method of identifying the “button-head”
yoke is to look at the side view. On the yoke
design used for the ASET™ engines, the top
surface of the adjusting screw end is on the same
plane as the bottom surface of the “button-head.”
On valve yokes used on engine models prior to
ASET™ and E-Tech™, the top surface of the
adjusting screw area is 0.145 inch below the
bottom surface of the “button-head.” Refer to
Figure 60 for an illustration of these differences.
60
Figure 60 — Valve Yoke Side View
The valve yokes used on the ASET™/E-Tech™
engines have a deeper engagement at the yoke
screw end than the yokes used on the E7-PLN
engine, because of the longer valve (Figure 61).
ASET™/E-Tech™ and E7-PLN yokes are very
similar in appearance, but should not be
interchanged.
61
Figure 61 — Valve Yokes
DO NOT interchange yokes. For example, if a
current design yoke from an ASET™ engine is
used on an earlier E7 engine, the valve keepers
will become dislodged and cause a dropped
valve. This will cause severe engine damage. If
the non-current design yoke from an E7 engine is
used on an exhaust location of a J-Tech™
brake-equipped ASET™ engine, the yoke will
disengage from the valve stem tip during engine
brake operation. See Figure 62.
1. Same Plane
(ASET™/E-Tech™)
2. Below (0.145
″
for E6, E7
and E9 Only)
1. Current
2. Non-Current
5-111.bk Page 55 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...