On Mon, 16 Jun 1997, derek evans wrote:
> hi everyone,
> does any one have the timing specs for a herald 1200 (1147)
> it's one of the eary ones, not a 12/50 or spitfire motor
> i have a static figure but what sould i see at idle and say 2000 rpm
> i'm playing with electronic ignitions and these figures would help me greatly.
> thankyou in advance (or retard?)
Derek, the following is from the Official Workshop Manual and applies to
the high-compression engines (8:1 or 8.5:1).
With timing set at 0 deg. at a DISTRIBUTOR speed of <100rpm (NOTE: all
speeds here are for the Distributor; multiply by two for engine speeds),
run the engine to 2500 rpm, which should be a maximum of 10 deg advance.
On decelerating, dist. speeds/advance should be:
2000 -- 8-10 deg.
1500 -- 6-8 deg.
1000 -- 4-6 deg.
500 -- 3/4-3 deg.
450 -- 1/2- 1 1/2 deg.
There should be no advance below 120 rpm.
Hope that helps.
--Andy
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