Triumph TR6 PI Operation Manual page 117

ENGINE
Refitting
3. Clean the timing cover, smear the oil seal with oil.
4. With the lip face trailing press the seal squarely into
the timing cover.
5. Refit the timing
c~ain
cover 12.65.01.
Removing
I. Remove the timing chain cover 12.65.0 I.
2. Carefully prise out the seal, avoiding damage to the
timing cover seal location.
12.65.05 - Remove and refit
Special tool S341
TIMING COVER OIL SEAL
VALVE TIMING
I. Remove the rocker cover 12.29.47.
2. Adjust the rocker clearances of numbers eleven and
twelve valves to 0'120 in (3"04 mm) to give a working
clearance.
NOTE: This clearance may vary according to the lift of the
camshaft employed. The clearance should be
sufficient to enable feeler gauges of reasonable
thickness to be inserted when the valves are on the
'rock'.
3. Turn the crankshaft in the normal running direction
until number one piston is at T.D.C. on the
compression stroke, indicated by the mark on the
crankshaft pulley coinciding with the pointer on the
timing cover.
4. Check that numbers one and two valves are fully
closed by ascertaining with a feeler gauge that
clearance exists between the valve tips and rocker
pads. .
5. Using tWo feeler gauges of the same thickness' check
that the rocker clearances of numbers eleven and
twelve are the same. Oscillate the crankshaft to
achieve this condition. Ensure however that when the
rocker clearances are the same the conditions in
instructions 3 and 4 are maintained.
NOTE: The actual rocker clearance is not important
providing the clearances are the same.
6. Should the valve timing prove to be incorrect
retiming will be ,necessary - 12.65.12 instructions 1
to 7 and 12.41.05 instructions 79 to 85.
7. Reset the rocker clearances of numbers eleven and
twelve valves. See Data operation 12.29.48.
8. Refit the rocker cover 12.29.42.
-Check
Triumph TR6 Manual. Pan No. 545271 bsue 1
12.65.08
12.65.05
12.65.08