21528660 Volvo.Penta Valve seat

Problem
The governors may not be assembled correctly on certain 3412 Engines equipped with a 9Z5359 Modification (High Output 3412 Custom Marine Engine)
Affected Product
Model & Identification Number
3412 (38S13342,38S13377,38S13512,38S13513,38S13585,38S13594,38S13601,38S13604,38S13612,38S13684,38S13690,38S13701,38S13727,38S13728,38S13730,38S13732,38S13783,38S13786,38S13787,38S13792,38S13947,38S13963,38S13966,38S14070,38S14086,38S14096,38S14097,38S14112,38S14117,38S14123,38S14127)
Parts Needed
Dealers will need to order parts for this Program.
3 - 1A9579 Bolt-Cover to Governor Housing1 - 1B4201 Nut-Power Adjusting Screw Locking1 - 5B5492 Washer-Bolt Between Idle Screws and Cover2 - 6H5636 Bolt-Cover to Governor Housing1 - 8H9181 Spring-Riser Bumper Cushion2 - 8H9204 Washer1 - 8L4154 Collar-Rack Stop1 - 8L4155 Screw-Power Adjusting1 - 9L9577 Gasket-Cover to Governor Housing1 - 8M8739 Bolt1 - 9M4704 Bolt-Stop Collar Clamping1 - 4N1008 Housing Assembly1 - 4N1531 Plate Assembly1 - 4N1870 Gasket-Governor Housing to Adapter Plate1 - 6N8793 Spring-Stop Collar Bumper1 - 9N2472 Cover-Governor Top1 - 3P0009 Insulator-Contact1 - 4Q8485 Bracket Assembly1 - 2S9519 Control Group-Rack Stop2 - 8T2604 SealAction Required
See the attached Procedure.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
This is a 4-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach.
(1-Owner Notification)(2-Rework Procedure)Copy Of Owner Notification For U.S. And Canadian Owners
Rework Procedure
Disassembly:
Remove the idle screw cover and gasket.
Remove the flat plate (top cover).
Remove the governor housing retaining bolts, and the governor housing.
Remove the governor spring, two wave washers, spacer washer, and the upper spring guide seat.
IMPORTANT: FIND THE 8H9181 RISER BUMPER SPRING (12) IF IT IS NOT ON TOP THE RISER. REMOVE THE SPRING, IT WILL NOT BE USED AGAIN. A NEW SPRING WILL BE INSTALLED LATER.
Pull the 1W4640 Riser Spring Seat (17) upward carefully to expose the end of the riser cross dowel (18).
Slide the riser cross dowel out of the riser body (16) to disconnect the riser from the servo valve.
Carefully lift the riser body, washer (19), spring (20), sleeve (21) and seal (22) from the servo valve.
Remove the sleeve, spring, and washer from the riser body.
Keep Them In The Same Order As Originally Installed.
Remove the 4N1531 Plate Assembly.
Assembly
Install the 4Q8485 Bracket Assembly (23) on the 4N1531 Plate Assembly (24).
Insert the 8M8739 Stop Collar Bolt (7) through the hole in the end of the riser body.
Install the washer, spring, and sleeve into the riser body in the same order as removed.
Install the assembled riser parts on the servo valve. Make sure cross holes are aligned.
While holding the two governor flyweights in a position that places both flyweight toes down against the servo cylinder, install the dowel through the riser body, sleeve, and servo valve cross holes.
Install the riser spring seat over the riser body, and press downward until the spring seat is seated securely against the bottom shoulder on the riser body.
Check to make sure the riser is securely fastened to the servo valve and that both flyweight toes are under the riser bearing race on the riser sleeve.
Install the governor spring, wave washer, spacer washer, second wave washer, and spring guide seat in the order stated. These parts should not be stacked on the spring riser seat.
Install the 8H9181 Riser Bumper Spring over the 8M8739 Stop Collar Bolt with the large diameter end upward.
Lay the new 4N1870 Governor Housing Gasket (13) into position on the governor adapter plate.
Remove the shaft from the existing housing. Install the shaft with the new 8T2604 Seals and 8H9204 Washers in the new 4N1008 Housing Assembly.
Carefully lower the governor housing into position while guiding the upper end of the 8M8739 Stop Collar Bolt through the small hole in the governor spring guide.
Care must be taken to position the spring guide seat, and wave washers over the end of the spring seat guide without getting those parts out of their position on top the governor spring.
Drop the 6N8793 Stop Collar Bumper Spring (9) over the end of the 88739 Stop Collar Bolt. Do not use the 2S7298 Collar (8).
Install the 2S9519 Control Group into position on top of the governor housing.
Install the 8L4155 Power Adjusting Screw (14) into the 8L4154 Stop Collar (10), and install the 1B4201 Lock Nut (15) on the adjusting screw torque to 9 (3 lb ft).
Place the 8L4154 Stop Collar over the 8M8739 Stop Collar Bolt, and install the 9M4704 Stop Collar Clamping Bolt (11) in the stop collar. Hold the stop collar in a position such that the clamping bolt will also pass through the radiused annular groove in the end of the stop collar bolt.
Place the 9L9577 Cover Gasket (5) in position on top of the governor housing.
Place the 9N2472 Cover (1) over the governor housing, make sure the collar guide pin engages the small radiused slot in the stop collar, and guide the cover down over the idle adjusting screws.
Assemble the five cover retaining bolts (2,3) and the washer (4). The washer goes on the bolt between the two idle screws.
Loosen the nut that holds the PP6001 Insulator & Rack Stop Screw. Back the screw out until the end of it is flush with the inside face of the PP6002 Plate-Solenoid and tighten the nut again.
Illustration 1 4N1894 Governor Group - Part 1
Illustration 2 4N1894 Governor Group - Part 2
Illustration 3 8N7525 Plate Group - Governor Adapter