Daihatsu CB-23 - Timing Belt & Water Pump

IN-VEHICLE SERVICE
INSTRUCTIONS ON SERVICE OPERATIONS
This section only describes the removal/installation procedure for those parts which can be
removed/installed while the engine is still mounted on the vehicle. As for the overhaul or inspection for
the removed parts, see the section under "Engine Overhaul."
With regard to those operations for the timing belt, camshaft, crankshaft oil seal, camshaft oil seal
and
cylinder head gasket, previous to the operations, make sure to set the piston No.1 to the top dead
center under the
com~ression stroke.
NOTE:
The top dead center under the compression stroke of the cylinder No.1 can be confirmed by removing
the oil filler cap and observing the top mark of the camshaft.
TIMING BELT & WATER PUMP
REMOVAL
1. Drain engine coolant.
2. Remove the air cleaner and hose. (CB-61 & CB-80
engines only)
3. Remove the engine mounting bracket. Prior to this opera-
tion, support the oil pan with a jack.
NOTE:
Be very careful not to deform the oil pan.
Extreme care must be exercised not to damage the oil
drain plug.
The deformation of the oil pan will cause engine seizure.
4. Remove the V-belt.
5. Remove the water pump pulley.
6. Remove the crankshaft pulley.
When the crankshaft pulley is slackened, lock the ring
gear, using a screwdriver or the like.
(On Type CB-80 engine, the space is very limited for this
operation. Hence, it is advisable to use a screwdriver
whose end is bent at
a right angle for this operation.)
7. Remove the bracket (surge tank & cylinder head cover).
(CB-80 engine only)
8. Remove the resistive cords. (CB-80 engine only)
9. Remove the cylinder head cover. (CB-80 engine only)
10. Remove the timing belt upper cover.
11. Remove the timing belt lower cover.
12. Remove the timing belt tensioner.
Before the timing belt tensioner is removed, align the
punch marks of the crankshaft and camshaft
tim~ng belt
pulleys with the indicator marks, respectively. thus setting
the piston
No.1 to the top dead center under the com-
pression stroke.
I I
Fig. 4-1 WM-04003
I 1
Fig. 4-2 WM-04004
(CB-23 & CB-61 engines)
I 1
Fig. 4-3 WM-04005