6-10
Chapter 6 INSPECTION AND REPAIR OF BASIC ENGINE
1.12 Tappet - Inspect
Inspect the tappet sliding face to cam for even wear. If the
surface is defective, replace the tappet with a new one.
Tappet Sliding Face to Cam - Inspect
1.13 Pushrod Runout - Measure
Measure the runout of push rod at TIR. If the runout
exceeds the standard, replace the push rod with a new one.
Pushrod Runout - Measure
1.14 Nozzle Gland Stud Bolt and Bridge Guide - Inspect and Replace
Inspect the nozzle gland stud bolt for bending or damage at
threaded portion.
Inspect the bridge guide for uneven wear and damage on the
sliding surface.
1.14.1 Nozzle Gland Stud - Install
Tighten the nozzle gland stud bolt until it comes to the bot-
tom end.
1.14.2 Bridge Guide - Install
Press-in the bridge guide to the specified dimension.
Nozzle Gland Stud Bolt and Bridge Guide -
Install
Good
Bad
Bad
Flaw, local wear
Flaw, local wear
Item Standard value Remarks
Pushrod runout 0.50 mm [0.020 in.] or less TIR
1/21/2
Push rod
Surface plate
V-block　
91 mm
[3.58 in.]
Nozzle gland stud bolt
Bridge guide
(50 mm)
[1.97 in.]
32 ± 0.5 mm
[1.26 ± 0.020 in.]
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