If you remove the valve cover it is pretty clear by watching the valves when
#1 is ready to fire (both valves will have been closed for about 1/2 a crank
rotation when the timing mark is reached). Bring it up to TDC on that
stroke and look at the distributor to see if the points are more or less
opening and where the rotor is pointing. If the distributor is positioned
as it should be the rotor will be pointing at #1 plug but of course other
positions may occur and may even work.
Geo
----- Original Message -----
From: "Paul Dorsey" <dorpaul@negia.net>
To: "list Triumph" <triumphs@autox.team.net>
Sent: Sunday, December 23, 2007 6:51 PM
Subject: [TR] timing basic
>I ought to know this...
>
> I need to time my engine. Of course, the hole in the crankshaft pulley
> signifies TDC for #1 piston.
> But how can one tell if the distributor's rotor button should be pointing
> toward #1 spark plug wire or 180 degrees on the distributor cap from #1 (I
> know I need to take the BTDC advance into account).
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