WORKSHOP MANUAL VOLVO TAD941GE Engine

Page 107

Engine body, general overhaul

Pistons, fitting 107. Oil in cylinder liner, the bearing shells and the crank bearing pins. 108. Remove press tool 9996966 temporarily while installing the piston. 109. Use tool 9990044 and carefully guide the piston with piston rings down into the cylinder. Check that the connecting rod does not damage the crankshaft bearing pin. NOTE: Be careful. The oil scraper rings are brittle and are easily damaged. NOTE: The piston ring compressor may not open when the piston has been placed in the tool. The piston rings can be damaged. Press out the piston first, before opening the tool. 110. Reinstall press tool 9996966. All cylinder liners must be locked with the press tool in order to prevent movement between cylinder liner and engine block when the engine is cranked. 111. Install the bearing caps with their bearing halves.

Piston cooling nozzle, fitting 112. Blow the piston cooling nozzle clean and check for damage. WARNING! Faulty piston cooling results in piston seizure. If you suspect that the piston cooling nozzle may be damaged or deformed, it should be replaced (applies to new nozzles as well). 113. Install piston cooling nozzle. IMPORTANT! Check that the nozzle is placed correctly in the hole in the cylinder block and is directed towards the recess in the piston and that the retaining plate lies flat against the block. If the piston cooling nozzle is not correctly installed, the engine will immediately break down when loaded.

114. Torque as specified in �Technical data�. NOTE: The piston cooling nozzle retaining screw has a friction coating and may only be used once.

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