Triumph TR2 Service Instructions Manual page 58

ENGINE
cylinder sleeves may be disturbed because
of their adherence to the gasket.
When refitting the cylinder head nuts,
tighten them gradually in the sequence
shown in F i g . 28 in order to produce an
even pressure on the gasket and prevent
undue strain in the cylinder block casting.
It will be necessary to recheck the nut
tighmess when cold to 1 S 1 0 5 lbs. ft.
Before tightening down the rocker shaft
pedestals, screw back each adjusting screw
and ensure that the ball ends of these
screws engage correctly in the push rods.
Failure to attend to this procedure can
result in dvnage to the push rods. Smother
the rocker gear
w i t h
oil, particularly where
the rockers bear on the valves.
Before replacing the rocker cover ensure
that the cork joint is undamaged and
shellaced to the cover, otherwise oil may
leak through the joint.
After the first 500 miles the cylinder head
nuts should be checked for tighmess with
the engine hot.
17.
LOW COMPRESSION K I T -
PART No. 502227
This kit w a s introduced for those owners
who
experienced
d i f f i c u l t y in obtaining
fuels of a high octane value.
The kit comprises of
: -
8 Push Rods (longer
than those normally
fitted).
1 Combustion Head Gasket.
1 Low Compression Plate.
1
"
Corgasyl
"
Combustion Head Gasket.
(a) Pr are the engine unit as for de-
car T o nisation
(see
attempt should
be ma
?r
e to 25J break the
combustion head seal by
t u r n i n g
the
crankshaft-this action will only dis-
turb the cylinder liners on their
lowennost seatings and water leakage
will result. When the head
has been
removed fit liner retainers (Fig. 22)
and check that the liners stand proud
of the cylinder block .003" to .0055"
(see
Page 19.)
(b) Apply a light coating of
"
Wellseal
"
jomting compound to both sides of the
low compression plate and gaskets.
(C)
Fit the copper cylinder head gasket
(smooth
face
downwards), followed by
the low comprrssion plate and steel
"
Corgasyl
"
gasket
;
this may be
fitted either side up.
(d) Fit the longer push rods and lower
the combustion head into position.
Omitting the plain washers, tighten
the combustion head nuts (Fig. 28) to
the correct torque (100 to 105 lbs. ft.).
(e)
Screw back the ball pins in the rockers
and then fit shaft assembly to the com-
Fig.
28
Cylinder Head nut tightening sequence
bustion head and tighten nuts to 24-
26 lbs. ft.
Adjust valves for clearance. (See
page 22.)
( f ) Reconnect fuel pipe, carburettor/dis-
tributor suction pipe, throttle and
* A
-
choke cables to carburettors.
(g) Replace rocker cover, ensuring first
that the seal is in good order, also the
thermostat housing, thermo gauge
bulb.
(h) Refit heater hose (if heater is fitted),
by-pass hose, top radiator hose. Re-
plenish cooling system with coolant.
(i) Reconnect fuel ipe at pump. Con-
nect battery 1eaJ
NOTE-Afier the first
500
miles the
cylinder nuts should be checked
for tighmess with the engine hot.
18. THE
"
PUROLATOR MICRONIC
"
OIL FILTER-TYPE 17F. 5102 (Fig.
29)
The Purolator Micronic filter consists of
a plastic impre ated paper element which
removes the R e s t fartides of abrasive
which invariably f i n their way into the
7
e.
A filter of this
type
will sto
f'
o y the smaller microm s w d partic es of
abrasive, but ensures a supply of clean oil
to the engine at
all
times. The only attention
which the filter needs is to see that the
elanent is changed at periods not ex-
&g
8,000
miles. It is essential that this
operation is carried out at specified periods