Triumph TR6 PI Operation Manual page 154

FUEL SYSTEM PI
FUEL METERING DISTRIBUTOR TIMING
** (Up to Engine No. CP 77609E)**
- Check and adjust
19.35.01
Check
I. Isolate the battery.
2. Turn the engine until the T.D.C. mark on the
crankshaft pulley is in line with the pointer and
number one piston is on its firing stroke.
3. Disconnect number six injector pipe from the
metering distributor.
4. Remove number six outlet union from the metering
distributor body and observe the relationship of the
sleeve port to the rotor port.
5. Illustration A shows the ACCEPTABLE range of
rotor port positions in relation to the rotor sleeve
port. The direction of rotation of the rotor is
clockwise looking at the drive end of the rotor.
NOTE: Black shading represents the rotor.
The arrow indicates direction of rotor rotation.
AA shows the sleeve port almost covered by the
rotor.
AB shows the sleeve port half covered by the rotor.
AC shows the sleeve port and the rotor port almost in
line moving towards a full hole.
6.
Illustration B represents an UNACCEPTABLE range
of rotor and sleeve port positions.
BA shows the rotor and sleeve port almost in line.
BB shows the rotor covering half of the sleeve port.
BC shows the rotor almost covering the sleeve port
and moving towards total closure of the sleeve port.
Adjust
7. In the event of the timing being incorrect, remove the
metering distributor and pedestal complete
instructions 1 to 8 12.10.22.
8. Insert a finger in the distributor shaft bore and turn
the pinion gear anti-clockwise (towards the engine)
until a full rotor hole is visible through number six
outlet.
9. Continue to turn the gear antklockwise until the
rotor. hole just disappears from view, and then rotate
the gear one extra tooth.
10. Lower the pedestal and metering distributor into
position and recheck the position of the rotor hole.
NOTE: If the position of the hole is still not correct the
gear may not have been turned sufficiently, therefore
repeat instructions 8 to 10.
II. Secure. the pedestal to the cylinder block, refit the
ignition distributor and distributor cap and H.T.
leads.
12. Reverse instructions 1 to 4,12.10.22.
19.35.01 p.r. Sheet 1
B
NT2 231
NT2 599
Triumph TR6 Manual. Part No. 545277 Jssue 2