0173592 EVINRUDE PISTON HEAD ASSY.

Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.Effectivity
Table 1 shows the effectivity for the new floating aftercooler core.
Table 1
Effectivity of the New Floating Aftercooler Core    
Engine     Effectivity    
C32 Marine     S/N:RXB3745-UP    Parts
Refer to Table 2 for the correct parts that are used to convert the 195-5220 Raw Water Aftercooler Gp to the new 286-7913 Raw Water Aftercooler Gp .
Table 2
Action     Part Number     Quantity    
Add     3E-7428 Pipe Plug     1    
Add     3P-0655 O-Ring Seal     2    
Add     349-7034 Aftercooler Core As     1    
Add     338-5101 Isolation Seal     2    
Add     4N-2564 Gasket     1    
Add     5P-7128 Bolt     28    
Add     6v-3955 O-Ring Seal     3    
Add     110-8314 Washer     28    
Add     8T-4896 Hard Washer     14    
Add     8T-9101 Bolt     14    
Add     9N-0869 Hard Washer     3    
Add     6D-4972 Spacer     3    
Add     6V-8918 Bolt     3    
Add     286-7903 Cover     1    
Add     288-6956 Seal     1    
Add     290-2324 Flange     2    
Add     290-2325 Bonnet     2    
Add     300-1389 Base As     1    
Remove     0S-1590 Bolt     28    
Remove     4M-6425 Bolt     4    
Remove     5M-2894 Hard Washer     28    
Remove     5S-9134 O-Ring Seal     2    
Remove     8T-4224 Hard Washer     4    
Remove.     195-5169 Adapter     2    
Remove     195-5235 Core or 306-5612 Aftercooler Core As (1)     1    
Remove     306-5612     1    
Remove     198-3879 Base As     1    
Remove     242-9745 Cover As     1    
( 1 ) The 195-5235 Core is cancelled and replaced by 306-5612 Aftercooler Core As .Refer to Table 3 for the correct parts that are used to convert the 203-2230 to the new 290-2305 . The 290-2305 Auxiliary Sea Water Lines Gp is used with the new 286-7913 Raw Water Aftercooler Gp .
Table 3
Actions     Part Number     Quantity    
Add     8C-8491 Hard Washer     4    
Add     290-2306 Retainer Sleeve     2    
Add     290-2308 Flange     2    
Add     290-2309 Tube     1    
Add     290-2310 Tube As     1    
Remove     0T-0102 Bolt     2    
Remove     3P-9847 Clip     2    
Remove     5M-2894 Hard Washer     2    
Remove     110-8314 Washer     4    
Remove     202-7958 Retainer Sleeve     2    
Remove     230-5834 Tube As     1    
Remove     230-5835 Tube As     1    Refer to Table 4 for the correct parts that are used to convert the 264-7813 Auxiliary Sea Water Lines Gp to the new 318-0719 Auxiliary Sea Water Lines Gp . The 318-0719 Auxiliary Sea Water Lines Gp is used with the new 286-7913 Raw Water Aftercooler Gp .
Table 4
Action     Part Number     Quantity    
Add     8C-8491 Hard Washer     4    
Add     290-2306 Retainer Sleeve     2    
Add     290-2308 Flange     2    
Add     318-0720 Tube As     1