Concorde V6-2.7L VIN R (1998)
Valve Guide Seal: Service and Repair
REMOVAL
1. Perform fuel system pressure release procedure before attempting any repairs.
2. Disconnect negative cable from remote jumper terminal.
3. Remove air cleaner housing cover and inlet hose.
4. Remove intake manifold plenum.
5. Remove cylinder head cover(s).
6. Remove crankshaft damper, timing chain cover, and timing chain.
7. Remove camshafts.
8. With air hose attached to spark plug adapter installed in the cylinder being serviced, apply 620.5-689 kPa (90 - 100 psi) air pressure. This is to
hold valves in place while servicing components.
9. Using Special Tool MD 998772A with adapter 6779, compress valve spring and remove valve locks, retainer, and valve spring.
Figure 44 Valve Stem Seal - Removal
10. Remove valve stem seals by using a valve seal tool.
INSTALLATION
1. The valve stem sea/valve spring seat should be pushed firmly and squarely over the valve guide using the valve stem as guide. Do Not Force seal
against top of guide. When installing the valve retainer locks, compress the spring only enough to install locks
2. Follow the same procedure on the remaining cylinders using the firing sequence 1-2-3-4-5-6. Make sure piston is at TDC on the cylinder that the
valve spring is to be removed.
3. Remove spark plug adapter tool.
4. Remove Special Tool MD 998772A and install rocker arm(s).
5. Install camshafts, timing chain, and timing chain cover.
6. Install cylinder head cover. and intake manifold.
7. Install intake manifold plenum.
8. Connect negative cable.
