Triumph TR6 PI Operation Manual page 57

ENGINE
Establishing distributor drive shaft end-float
11. Place a flat washer on top of the oil pump shaft bush.
12. Fit the distributor drive shaft and gear in position
over the washer ensuring that the oil pump drive dog
is engaged.
13. Fit the pedestal without gaskets and using a feeler
gauge measure and note the gap 'B' between the
pedestal and the cylinder block flange.
14. Remove the pedestal and the distributor drive shaft.
Remove the measure the thickness of the washer with
a micrometer.
15. Allowing 0·005 in (0·127 mm) end float assess the
required number and thickness of gaskets needed as
in the following examples a and b:-
a. Washer thickness A
Measured gap B
End-float
Gaskets required to the
value of
b. Washer thickness A
Measured gap
B
Pre-load
Gaskets required to the
value of
0·075 in (I :905 mm)
0·074 in (1·880 mm)
0'001 in (0·025 mm)
0·004 in (0·102 mm)
0-075 in (1·905 mm)
0·080 in (2·032 mm)
-0'005 in (- 0.127 mm)
0.010 in (0·254 mm)
Refitting
16. Fit the distributor drive shaft and gear ensuring that
the shaft engages properly with the oil pump drive
shaft and the distributor drive off-set slot is towards
the engine.
17. Fit the gaskets as calculated and assemble the
pedestal and metering unit to the cylinder block and
secure with the two nuts and washers.
18. Check the fuel metering distributor timing
instructions 3 to 6 19.35.01 and adjust instructions 7
to 11 19.35.0 I if necessary.
19. Reverse instructions 1 to 4 and run the engine.
DATA
Distributor drive shaft end-float 0·003 to 0·007 in
(0·076 to 0·177 mm).
12.10.22 Sheet 3
NT2 638
Triumph TR6 Manual. Part No. 545277 Issue 1