TM 5-3895-382-24
(5)
The water pump must be assembled in order to
correctly measure the distance from the impeller boss to
the front face of the pump body.
Distance ..........................................................8.1 to 8.5 mm
(.32 to .34 inch)
(6)
The water pump must be assembled in order to
correctly measure the distance of the gear from the rear
face of the pump body.
Distance ..........................................................0.6 to 2.6 mm
(.02 to .10 inch)
Type 2 Engines and 7BJ Engines
NOTE:
For a complete description of Type 1 and Type 2
engines, refer to the Specifications Module,
"Engine Design" for more information.
NOTE:
The water pump for Type 2 engines and 7BJ
engines is not serviceable. Contact your
Caterpillar
dealer
for
more
replacement
information.
Cylinder Block
SMCS Code: 1201
Cylinder Block
Illustration 40
Typical Engine Block
(1)
The cylinder liner has the following characteristics:
Dry
Interference fit
Flanged
Flame Ring
Outside diameter of cylinder
liner .................................................................104.25 to 104.28 mm
(4.105 to 4.106 inch)
Inside diameter of cylinder
liner .................................................................100.00 to 100.03 mm
(3.937 to 3.938 inch)
The cylinder liner needs to be ground when the
following maximum diameter of wear
exists: ...............................................................0.25 mm (.010 inch)
Interference fit of liner in cylinder block ...................... 0.03 mm
( .001 inch)
The projection of the liner flange can be 0.10 mm (.004 inch)
above to 0.10 mm (.004 inch) below the face of the cylinder
block.
NOTE:
The projection of the liner flange is the relative
position of the liner flange to the top face of the
cylinder block.
Flange thickness of cylinder liner ...................... 3.81 to 3.86 mm
(.150 to .152 inch)
NOTE:
A cylinder liner that has been replaced must be
partially machined. Service personnel that have
special training must use specialized equipment
in order to replace a cylinder liner.
The following steps are required for installation of a cylinder
liner:
1.
The cylinder liner must have a press fit into the bore of
the cylinder block.
2.
Bore the cylinder liner.
3.
Hone the cylinder liner by using a diamond hone.
4.
Hone the cylinder liner by using a silicon carbide base.
5.
Hone the cylinder liner by using a silicon carbide
plateau.
Cylinder liner that has been replaced before boring and
installation
The cylinder liner must have a press fit into the
bore of the cylinder block to the following
dimension: ..............................................0.050 0.025 mm
(.0020 .0010 inch)
Bore of cylinder liner that has been
replaced ................................................99.288 0.126 mm
(3.9090 0.0050 inch)
The internal surface of the cylinder liner that has been replaced
has new specifications. After boring, the cylinder liner that has
been replaced has the following specifications:
Internal diameter .............................................99.899 0.025 mm
(3.9330 0.0010 inch)
5-27
