Isuzu Trooper II 1986 Manual page 4

adjustment shoe and lock tensioner in retracted position by releasing
lever.
2) Start with outer nuts and work inward to loosen camshaft
brackets. Remove camshaft brackets and nuts. Remove cylinder
head-to-front cover bolts. Starting with outer bolts and working
inward, loosen cylinder head bolts using Head Bolt Wrench
(J-24239-01). Remove cylinder head and gasket.
Removal (2.0L & 2.3L Models)
1) Remove tension spring and loosen tensioner adjusting
bolt. Move tension sprocket toward water pump. Remove timing belt,
sprocket, tensioner and spring. Hold camshaft sprocket stationary and
remove camshaft sprocket nut. Remove sprocket and guide plate. Repeat
procedure for oil pump sprocket.
2) Start with outer nuts and work inward to loosen camshaft
brackets. Remove camshaft brackets and nuts. Remove cylinder
head-to-front cover bolts. Starting with outer bolts and working
inward, loosen cylinder head bolts using Head Bolt Wrench
(J-24239-01). Remove cylinder head and gasket.
Installation (All Models)
1) Clean gasket surfaces. Clean head bolts and threads in
cylinder block. Install new head gasket with side marked "TOP" up.
Apply a thin coat of engine oil to head bolt threads. Install
cylinder head, but do not tighten bolts.
2) Apply a thin coat of oil to front cover bolts and
install. Tighten cylinder head bolts and front cover bolts to
specifications. Tighten cylinder head bolts in sequence. See Fig. 2.
Reverse removal procedure to complete installation.
Fig. 1: Locking Timing Chain Tensioner on 1.9L models
Courtesy of Isuzu Motor Co.