Remove/Install Hydraulic Valve Clearance Compensating Elements - AR05.00-P-2011MFG

Engine 139 in model 118, 177, 247 

Fig 1: Hydraulic Valve Clearance Compensating Elements Components Location - Engine 139 In Model 247

Courtesy of MERCEDES-BENZ USA

	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
	Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning  caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Remove/install
1	Remove exhaust camshaft (4) and intake camshaft (5).		AR05.20-P-6992MFG
2	Mark roller-type rocker arms (3) together with valve clearance compensating elements (1) in relation to cylinder head.	If reusing roller-type rocker arms (3) and valve clearance compensating elements (1), install them in the original place. Engine damage can occur otherwise.
3	Remove roller-type rocker arms (3) together with valve clearance compensating elements (1).
	Specified engine oils (service) - Overview	Wet roller-type rocker arms (3) and valve clearance compensating elements (1) with engine oil. Observe attached markings.	BB00.40-P-0223-02A
4	Remove clamps (2) by hand and remove valve clearance compensating elements (1) from roller-type rocker arms (3).
5	Press valve clearance compensating elements (1) together by hand and check for proper operation.	Only push valve clearance compensating elements (1) together by hand; do not use a steel tool. The surface of the valve clearance compensating elements (1) will otherwise be damaged. It should not be possible to press the valve clearance compensating elements (1) together with normal force of the hand and they should move together only very slowly when great force is applied. If a valve clearance compensating element (1) is defective: ↓ Replace valve clearance compensating element (1). If several valve clearance compensating elements (1) are defective: ↓ check forced oil supply of cylinder head.	AR18.00-P-1250MFG
6	Install in the reverse order.