Toothed Belt Guard; Upper Section - Lotus TURBO ESPRIT Service Manual

Page
74
SECTION EA
.
.
~a
follower and the camshaft heel. The ccrrect clearance i s given i n
TECHNICAL DATA.
3.
Check a l l valve clearances, noting any which require adjustment.
To
Ad
just
Remove the camshafts intact i n their housings. (refer to Section
EA .5 .)
Remove each adjusting shim where the clearance requires adjustment
.
Substitute a shim giving the correct clearance, which has been greased on
i t s face abuting the valve stem. O N L Y use
ONE
shim t o each valve.
I
NOTE: A
Thinner shim w i l l increase the valve clearance, whereas a thicker
shim w i l l decrease the clearance.
Replace the carnshafts(Section
EA
.5
.)after adjustment and recheck the
!
clearance.
If
the clearance i s s t i l l incorrect, then the whole o f the above
procedure
MUST
be carried out again.
NOTE:
Do
'NOT
turn the camshafts with No.1 piston at
T
.D .C., as this w i l l
cause the valves t o be bent. Turn the crankshaft back through
90°
to bring
the pistons half-way down the cylinders.
Do NOT turn the crankshaft
BEYOND
90'
back, as
this
w i l l also cause the valves to be bent whilst
the camshaft driving belt i s off.
If,
on the later type of camshaft housings (with
'0'
ring and no gasket)
the valve clearances are to be verified before application of Loctite
504
gasket eliminator, allow 0.0015 in. for
this
thickness.
EA.7.
-
TOOTHED
BELT
GUARD (front engined cars
-
early type)
To Remove
Upper Section:
.
.
1 .
Releasethe bolt, plain andspring washer on
RH
side..
.
.
2.
Release bolt, plain and spring washer on inner of
LH
side, securing the guard
to
i t s
mounting bracket.
3.
Release nyloc nut and plain washer i n centre of section, taking care
NOT
t o
;misplacethe distanee piece between &aid and engine when removing the
guard.