Pistons, Removing And Installing: Removing
-- Remove the cylinder head. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
-- Remove the oil pan. Refer to TRANSMISSION FLUID PAN, REMOVING AND INSTALLING .
-- Label the installation position and allocation of the piston to the cylinder OVERVIEW - PISTONS AND CONNECTING ROD.
-- Mark installation position and allocation of the connecting rod cylinder OVERVIEW - PISTONS AND CONNECTING ROD.
-- Remove the connecting rod bearing cap and remove the piston and connecting rod upward.
If difficult to move, heat the pistons to approximately 60 °C (140 °F).
-- Remove the circlip from the piston pin eye.
-- Remove the piston pin using the Pilot Drift:VW 222 A .
The Piston Installation Funnel:T10333 with pistons inserted for assembly is placed on the cylinder block so that the straight side of the high installation plate -arrow- faces toward the center of the cylinder block.
Procedure
-- Before installing pistons, remove the fitting sleeve -arrow- from its hole.
-- Pistons for cylinders 1, 3 and 5 must be installed so that the deep valve recesses -1- point toward center of cylinder block and arrows -3- point toward vibration damper.
-- Pistons for cylinders 2, 4 and 6 must be installed so that the deep valve recesses -2- point toward center of cylinder block and arrows -3- point toward vibration damper.
-- Slide the piston for each cylinder into the Piston Installation Funnel:T10333 from the top. The short side of the piston -arrow- must extend approximately 15 mm past the lower edge of the funnel.
-- Now place the pistons with the funnel in the appropriate cylinder bore. The high side of the funnel -arrow- must face toward center of cylinder block.
-- Place the funnel securely on cylinder block and slide piston completely into cylinder bore.
-- Insert the alignment sleeve into the hole -arrow- after installing the piston.