Triumph TR6 PI Operation Manual page 465

ELECTRICAL
IGNITION DISTRIBUTOR
Data
Manufacturer
Type
Lucas part No.
Stanpart No.
Contact gap
Rotation - viewed on rotor
Firing angles
Dwell angle
Open angle
Moving contact spring tension
Capacitor capacity
Engine firing order
Centrifugal advance
Check at decelerating speeds.
Lucas
22D6·
41306
308460
0'014 to 0'016 in.
Anticlockwise
60
±
1 degrees
35
±
3 degrees
25
±
3 degrees
18 to 24 ozs.
0'20 microfarad
1-5-3-6-2-4
Degs. distributor
Degs. crankshaft
advance
advance
Distributor
Crankshaft
r.p.m. Minimum Maximum r.p.m. Minimum Maximum
Below 375 No advance to occur Below 750
No advance to occur
450 0 1 900
0 2
850 4
6 1700
8 l2
1500 6
8 3000 12
16
2500 9
11 5000 18
22
3000 9
11 6000 l8
22
Vacuum advance
Later distribu tors of this part number were modified by Triumph to
be suitable for 1971 U.S.A. engine units. Action of vacuum advance
deleted by sealing pipe with protective plug.
Ins. of
Degs. distribu tor
Degs. crankshaft
advance advance
mercury
vacuum
Minimum Maximum
Minimum Maximum
Below 2'5
I
No advance to occur
I
3
0 0'5
0 1
4
0 2'5
0 5
6 2'5 7'0
5 14
8
6'0 9'0
12 18
15
7'0
9'0 14 18
Retard unit
Ins. of
Degs. distributor
Degs. crankshaft
retard
retard
mercury
vacuum
Minimum Maximum
Minimum
Maximum
Below 1'5
I
No retard to occur
I
2'5
0
I
0
2
4'0
0
3
0 6
8'0
5
8 to
16
15'0
7
9 14
18
86.35.00
Sheet
4
Triumph TR6 Manual. Part No. S4S277 Issue
J