SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 3-cylinder diesel engine with pump injector unit, mechanics | Enginecrankshaft group, pistons | Piston and conrod: Removing and installing

Checking piston position at TDC

Special tools and workshop equipment required

t	Retainer -T20026-

t	Dial gauge

Checking sequence

When fitting new pistons or engine from the spare parts catalogue, the projection measurement of the piston at TDC must be measured.

Note

t	To measure the position of the piston in TDC, turn the engine in the direction of the clock.

t	If different values are measured for the protrusion of pistons then the largest measurement is used.

Install the appropriate cylinder head gasket depending upon piston projection, according to following table:

Cylinder head identification

l	Part number = (-arrow 1-)

l	Handling code = (-arrow 2-) do not take into account

l	Holes = (-arrow 3-)

Note

If the verification of the piston protrusion measurement returns values that differ greatly, to choose the correct gasket use the largest value.

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