Triumph MAYFLOWER 1951, Instruction Book

Page: 6 / 86

5
GENERAL SPECIFICATION
WEIGHTS.
Excluding extra equipment.
Complete with tools and tank
cwts qrs lbs Kg
full of petrol 18 2 21 950
Shipping weight 17 3 14 909
VALVE TIMING. With valve-tappet clearance set at 0.020” (0.5 mm.)
Inlet valve opens 10° before top dead centre.
Inlet valve closes 50° after bottom dead centre.
Exhaust valve opens 50° before bottom dead centre.
Exhaust valve closes 10° after top dead centre.
The equivalent distances measured
round the flywheel adjacent to the
starter teeth:
10° ...
31/32
” (2.46 cm.)
50° ...4
13/16
” (12.125cm.)
VALVE-TAPPET CLEARANCES
(measured with engine
cold).
Inlet 0.015" (0.37 mm.)
Exhaust 0.015" (0.37 mm.)
IGNITION TIMING
Set to fire 2° before top
dead centre (distributor
contact points just opening).
As the advance is
entirely automatic, the
setting is at full retard.
Contact breaker gap should be
set at 0.015" (0.4 mm.).
NOTE:- Engine speeds at other car speeds are, for all practical purposes, directly
proportional to those given above.