Fiat 70 Automobile User Manual


 
lubrication pipe (prise the oil feed stub out
with a screwdriver), unscrew the remaining
bolts and take off the bearing caps (photos).
24 Lift the camshaft carefully from the
cylinder head, checking that the valve
clearance shims and cam followers are not
withdrawn by the adhesion of the oil (photo).
25 If the shims and cam followers are to be
removed, keep them in their originally fitted
order (photos).
26 Refitting is a reversal of removal but use a
new camshaft oil seal and camshaft cover
gasket. Oil the camshaft bearings (photos).
27 Make sure that the timing belt is
reconnected and tensioned as described
previously.
28 Check the valve clearances.
29 Tighten all nuts and bolts to the specified
torque.
Cylinder head -
removal and refitting #
Warning: Refer to the beginning
of Section 9 before starting any
work.
Note: The cylinder head should be removed
cold.
30 Drain the cooling system.
31 Remove the air cleaner.
32 Disconnect the throttle and choke
connections from the carburettor (photo).
33 On carburettor models, disconnect the
fuel hoses from the fuel pump and the
carburettor. On fuel injection models,
13•22 Supplement: Revisions and information on later models
5B.26B Camshaft cover gasket5B.26A Camshaft oil seal5B.25B Removing a cam follower (tappet)
with shim
2B.25A Valve clearance shim showing
thickness mark
5B.24 Removing the camshaft
5B.23D Camshaft bearing cap showing
short and long positioning dowels for
correct fitting
5B.23C Camshaft lubrication pipe
5B.23B Unscrewing the camshaft
bearing/banjo union bolt
5B.23A Prising out the camshaft oil feed
pipe stub
5B.22C Camshaft sprocket showing
integral key (arrowed)