Remove/install valves - AR05.30-P-3511MCC

ENGINES 132.9 in MODEL 451.3/4 

Fig 1: Identifying Valves Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove valve stem seals (5)		AR05.30-P-3510MCC
2	Remove valve spring retainer (4) from cylinder head (1)
3	Turn over cylinder head (1) and remove intake valves (2) and exhaust valves (3) with the valve grinding tool (6) out of the cylinder head (1)	Check surfaces of valve stems, valve seats and valve guides by means of a visual inspection for roughness and ridging, replace intake valves (2), exhaust valves (3) or cylinder head (1) if necessary. Mark installation position if the removed intake valves (2) and exhaust valves (3) are reinstalled. Repair tools for valves	Fig 2
	Install
4	Insert intake valves (2) and exhaust valve (3) into cylinder head (1)	If removed intake valves (2) and exhaust valves (3) are used again then these should be reinserted in the same position.
5	Turn over the cylinder head (1) and insert valve spring retainer (4) in the cylinder head
6	Replace valve stem seals (5).		AR05.30-P-3510MCC

Fig 2: Identifying Repair Tools For Valves (452 589 01 99 00)

Courtesy of MERCEDES-BENZ USA