Ignition Leads; Sparking Plugs; Tdc Indication - Triumph TR3 Instruction Book

To obtain TDC rotate the
crankshaft until the inlet
valve of No. 1 cylinder is
open then slowly turn the
crankshaft until the small
hole in the crankshaft belt
pulley aligns
ti ming cover pointer (Fig.
26).

Sparking Plugs

It is important that the correct type of sparking plugs are fitted when making
replacements, and that the electrode gaps are set to 0.025" (0.65 mm.).
For normal road work use
For high-speed touring use
For competition work use
In certain cases when a lower compression ratio is used due to the non-
availability of high octane fuel, it may be necessary to use softer plugs, i.e. ,
Lodge CN.
Incorrect gap settings may cause misfiring or erratic slow running.
and adjust the sparking plugs at 3,000 miles (5,000 km.). Renew all sparking
plugs at 12,000 miles (20,000 km.).
RUNNING ADJUSTMENTS
Fig. 25.
with the

Ignition leads.

Fig. 26. TDC
... LODGE, CNY
... LODGE, HN
... LODGE, 2HN
32
indication.
Clean