12240-94431 Suzuki Crankshaft, Under

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     5S-1322     Valve Keeper Installer     1    
B     9U-6145     Air Connector (1)     1    
C     9U-6144     Adapter     1    
7F-4292 Valve Spring Compressor     1    
6V-5223 Bolt     1    
8T-4121 Washer     1    
6V-5218 Bolt     1    
D     8S-2263     Spring Tester     1    
( 1 ) The 9U-6145 Air Connector is part of the 9U-6274 Compression Test Kit. The 9U-6145 Air Connector can be ordered separately.Start By:
Remove the rocker shaft assembly and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
Remove the fuel injection nozzles. Refer to Disassembly and Assembly, "Fuel Injection Nozzles - Remove".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: The following procedure is for the removal of the inlet valve springs and the exhaust valve springs without removing the cylinder head.
Illustration 1 g00609904
Install Tool (B). Attach an air hose to Tool (B) in order to force air pressure into the cylinder. This will hold the valves in position while the inlet and exhaust valve springs are removed and installed. Note: Maintain air pressure in each cylinder until both of the valve springs are removed and installed.
Use Tool (C) to compress the valve spring (1) .Note: Compress the valve spring evenly in order to avoid damage to the valve stem.
Use the magnetic end of Tool (A) to remove cap (2) (not shown) and valve keepers (3) (not shown) from the inlet and exhaust valves.
Slowly release the tension on Tool (C) .
Remove the retainer and spring (1) from the cylinder head assembly.Note: Repeat Steps 1 through 5 in order to remove the remaining valve spring of the same cylinder.
Illustration 2 g00525271
Check the valve spring force with Tool (D). Refer to Specifications, "Valve Mechanism" for information on the valve springs.
Install the valve springs. Refer to the following installation procedure.
Perform Steps 1 through 7 for the removal and installation of the remaining inlet and exhaust valve springs. Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     5S-1322     Valve Keeper Installer     1    
B     9U-6145     Air Connector     1    
C     9U-6144     Adapter     1    
7F-4292 Valve Spring Compressor     1    
6V-5223 Bolt     1    
8T-4121 Washer     1    
6V-5218 Bolt     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.