Sidekick 4WD L4-1590cc 1.6L SOHC 0 TBI 8V (1990)
Valve Spring: Service and Repair
8 Valve Engines
Fig. 25 Valve Cotter Removal
1.
Remove cylinder head assembly as outlined under CYLINDER HEAD.
2.
Using valve spring compressor tool No. J8062 or equivalent, compress valve springs and remove valve cotters, Fig. 25.
3.
Release valve lifter tool and remove valve spring retainers and valve springs.
4.
Remove valves from cylinder head. Before removing valves from head, ensure there are no burrs on valve stem from spring removal
procedure.
5.
Using valve guide oil seal removal tool No. J37281-A or J37755 or equivalent, remove valve stem oil seals and valve spring seats.
6.
Reverse procedure to install noting the following:
a. Install new valve guides by driving out valve guides using valve guide removal tool No. J34833 or equivalent toward the valve spring side.
b. Ream valve guide holes using valve guide reamer tool No. J34832 or equivalent to remove any burrs and to ensure that the hole is perfectly
round.
Fig. 26 Valve Guide Installation
c. Install valve guides by heating cylinder head uniformly at a temperature of 176-212°F to prevent head distortion. Using valve guide installation
tool No. J34834 or equivalent, drive valve guide into cylinder head leaving a .55 inch protrusion above the cylinder head, Fig. 26.
d. Ream valve guide bore after installation into the cylinder head using valve guide reamer tool No. J34831 or equivalent.
e. Install new valve stem oil seals and install them with oil seal installation tool No. J34835 or equivalent.