Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
ENGINE MECHANICAL (H25 ENGINE) 6A2-51
LH bank
Don’t apply force
1. Engine oil
2. Valve lash adjuster
REMOVAL
1) Disconnect negative cable at battery.
2) Drain engine oil.
3) Drain coolant.
4) Remove timing chain cover.
Refer to item “TIMING CHAIN COVER” in this section for re-
moval.
5) Remove LH bank 2nd timing chain.
Refer to item “LH (NO.1) BANK 2ND TIMING CHAIN AND
CHAIN TENSIONER” in this section for removal.
6) Remove 1st timing chain.
Refer to item “1ST TIMING CHAIN AND CHAIN TENSIONER”
in this section for removal.
7) Remove RH bank camshafts.
Refer to item “RH (NO.2) BANK 2ND TIMING CHAIN AND
CHAIN TENSIONER” in this section for removal.
8) Remove CMP sensor. Refer to Section 6F2 for removal.
9) Loosen LH bank camshaft housing bolts in such order as indi-
cated in figure and remove them.
10) Remove LH bank camshaft housings.
11) Remove LH bank camshafts.
12) Remove valve lash adjuster.
NOTE:
Never disassemble hydraulic valve lash adjuster.
Don’t apply force to body of adjuster, oil in high pressure
chamber in adjuster will leak.
Immerse removed adjuster in clean engine oil and keep
it there till reinstalling it so as to prevent oil leakage. If it
is left in air, place it with its bucket body facing down.
Don’t place on its side or with bucket body facing up.
INSPECTION
Cam Wear
Using a micrometer, measure cam height. If measured height is be-
low its limit, replace camshaft.
Cam height Standard Limit
Intake cam
39.445 – 39.605 mm
(1.5530 – 1.5593 in.)
39.400 mm
(1.5512 in.)
Exhaust cam
39.428 – 39.588 mm
(1.5523 – 1.5586 in.)
39.400 mm
(1.5512 in.)