Engine - Universal Valve Spring Remover/Installer: Overview

REF. NO. MBNA 05/10, 58/91

DATE: January 1997

TO: ALL MERCEDES-BENZ PASSENGER CAR DEALERS

SUBJECT:
VEHICLES WITH ENGINES 102, 103, 104, 111, 112, 113, 119, 120, 601-606
UNIVERSAL TOOL FOR REMOVING/INSTALLING VALVE SPRINGS

There is a new, comprehensive tool kit available for removing/installing valve springs. with this new tool kit, the anchoring of the lever arm is achieved using existing threaded holes in the cylinder head. On engines with hydraulic lifters, the valve keepers can be removed/installed by pressing down on the valve spring with the mounting element. Proper function of the mounting element is assured, even with angled valves, as in the V8 and V12 engines, and in the confined space of the engine compartment. Therefore, the valve springs can easily be removed/installed, to change valve stem seals, with the engine installed. The tool kit comes with a German instruction sheet. There is an English version attached to this S.I., a copy of which is to be placed inside the tool kit upon purchase.





Special Tools

Engines without hydraulic lifters, or engines where the camshaft must be removed to mount the tool (604-806).





The valve keepers are removed/installed with a magnetic pen (part no. 210 589 00 40 00) or a magnetic finger (part no. 116 589 06 63 00), after pressing down on the valve spring with the spring compressor (7, Figure 1).





The adjustable anchor (18, Figure 1) is attached to the appropriate footing (12-15, Figure 1) which is screwed into existing threaded holes in the cylinder head (Figure 2). A selection of footings and anchors are available for various engines (12-18, Figure 1).

Engines with hydraulic lifters 111, 119, 601, 602 (except diesel engines 604-806)








The valve keepers are removed/installed using a mounting element (8, Figure 3) which is guided into the hydraulic lifter bore through a guide sleeve (10, Figure 1). Use the same anchors and footings previously mentioned (12-18, Figure 1) to anchor the lever arm in the existing threaded holes in the cylinder head (Figure 4).

Valve keeper removal

Insert guide sleeve (10, Figure 3) into the hydraulic lifter bore. Insert mounting element. Mount lever arm and turn adjustment screw (8a, Figure 3) until the inner alignment shaft noticeably engages between the valve keepers. Press down lever arm (valve keepers are released). Release tension and remove valve keepers from mounting element.

Valve keeper Installation

Insert valve keepers into mounting element observing proper position. Press down mounting element and lift inner alignment shaft via the adjustment screw (8a, Figure 3). Release tension (valve keepers are installed).





Mercedes-Benz Universal Valve Removal/Installation Tool