TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Cylinder Head (002-004)
Section 2 - Cylinder Head - Group 02
Page 2-11
Capscrew Length Gauge, Part No. 3823921
Free-Length Measurement
NOTE: If the capscrews are not damaged, they can be
reused throughout the life of the engine unless the speci-
fied "free length" is exceeded.
To check the capscrew free length, place the head of the
capscrew in the appropriate slot with the flange against the
base of the slot.
Capscrew Free Length
mm
in
Short
71.5
MAX
2.815
Medium
122.1
MAX
4.807
Long
182.9
MAX
7.201
If the end of the capscrew touches the foot of the gauge,
the capscrew is too long and must be discarded.
Immediately after cleaning and inspecting the capscrew.
Apply a film of clean engine oil to all capscrews that are to
be reused.
Install (002-004-026)
CAUTION
Be sure the gasket is correctly aligned with holes in the
cylinder block. If the gasket is not aligned correctly
engine damage can result.
Position a new cylinder head gasket over the dowels.
L-807
