Jeep 1987 Wrangler Workshop Manual page 294

ENGINES
TUT
2.46 LITER (150 CID) FOUR-CYLINDER ENGINE
TUT
SEE
I.S.
N
O
T
E
S
Each valve spring is held in place around the
valve stem by a retainer and a set of conical
valve locks. The locks can be removed only by
compressing the valve spring.
Remove the cylinder head cover. Refer to
C y l i n d e r H e a d C o v e r R e m o v a l for the
procedure.
Remove the capscrews (1), bridge (2) and pivot
(3) assembly and rocker arms (4) for access to
each valve spring to be removed. Alternately
loosen each capscrew one turn at a time to avoid
damaging the bridge.
Remove the push rods (5).
NOTE: Retain the push rods, bridges, pivots
and rocker arms in the same order and position
as removed.
84174
Remove the spark plug(s) adjacent to the
cylinder(s) below the valve springs to be
removed.
Install a 14mm (1/2-in) (thread size) air hose
adapter in the spark plug hole.
N O T E : An adapter can be constructed by
welding an air hose connection to the body of a
spark plug with the porcelain removed.
Connect an air hose to the adapter and maintain
at least 621 kPa (90 psi) of air pressure in the
cylinder to hold the valves against their seats.
N O T E : For vehicles equipped with an air
conditioner, use a flexible air adapter when
servicing the No. 1 cylinder.
Use Valve Spring Compressor Tool J-22534-01
to compress the spring and remove the locks.
81066A
B-eo