Page 260
REPAIR INSTRUCTIONS
Valve Yoke Installation
[213 NV]
(Non-Brake and J-Tech™ Brake
Equipped)
There are two exhaust valves and two inlet valves
for each cylinder. Each rocker arm, in conjunction
with the valve yoke, operates both valves
together as a set (exhaust or inlet). The E-Tech™
engine yokes are no longer identified with a
raised letter “E” cast into the surface. E-Tech™
yokes must now be identified by shape only. Two
ways of identifying shape are by looking at the
nose end of the valve yoke. The E-Tech™ yoke
has the nose end of the slipper pad area ground
flat as shown in Figure 28.
286
Figure 286 — E-Tech™, E6, E7 and E9 Valve Yokes
(Top View)
The second method of identifying the E-Tech™
valve yoke is by viewing the yoke from the side,
the top surface of the adjusting screw end will
appear on the same plane as the bottom surface
of the “button-head.” On the E6, E7 and E9 valve
yoke, the top surface of the adjusting screw area
is 0.145
″
below the bottom surface of the “button-
head.” Refer to Figure 287 for an illustration of
these differences.
287
Figure 287 — Valve Yoke Side View
Do not interchange yokes. If an E-Tech™ valve
yoke is used on an E7 engine, the valve keepers
will dislodge and cause a dropped valve, resulting
in severe engine damage. If an E7 valve yoke is
used on a J-Tech™ equipped E-Tech™ engine,
the yoke will disengage from the valve stem tip
during engine brake operation.
Used yokes have established wear patterns.
Yokes being returned to service should be
installed in the same position from which they
were removed.
Refer to Figure 288. The valve yoke installation
procedure for both non-brake and brake-
equipped engines follows.
1. Lubricate the yoke guide pins (6) (if
equipped) with clean engine oil.
5_106_00.bk Page 260 Friday, August 4, 2000 11:17 AM
BDC for engine manuals and specs
https://barringtondieselclub.co.za/
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