Timing mark pointer,

Palagius · Aug 8, 2020

Good morning,
I have bought a powerspark dizzy and leads etc,i was waiting for a chance to fit it and luckily my old girl started misfiring on overrun yesterday,
I was half way through strobing it ( '69 2a/3.) and came to a bit of a problem

,I have a timing mark pointer which is not the same as in any search i have done,any info into the marks is most welcome,i have it running ok by ear,i am going to remove the fanbelt to strobe it after reading other threads,
Thanks
Ryn@absolutely boiling penwith

Europa486 · Aug 8, 2020

It looks like you have it timed on 15% before TDC, large pointer to the right should be TDC easily checked with plugs out and valves on number four just rocking,
If you are not sure how accurate your marking are ? make up your own With a 360 degree scale piece of card reference to your TDC mark,

Colthebrummie · Aug 9, 2020

To be honest, unless your engine is low mileage and tip top, the timing marks are not that useful, my advice to anyone timing an old engine with some slop in its various moving parts is to time it be ear. I know others may disagree and I respect their right to do so.

Col

wireman · Aug 9, 2020

Colthebrummie said:
To be honest, unless your engine is low mileage and tip top, the timing marks are not that useful, my advice to anyone timing an old engine with some slop in its various moving parts is to time it be ear. I know others may disagree and I respect their right to do so.

Col

I agree with you, time it by ear. The timing marks give you a good starting point and a point of reference as you adjust/try different settings. IIRC the timing was TDC for 90 octane fuel. Unleaded is 95 octane and burns slower so requires a little advance to gain optimum burn.

Keow Helghor · Oct 10, 2020

So if you get it ticking over by ear can I view it with regards to buying it?

Timing mark pointer,

Palagius

Well-Known Member

Europa486

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Colthebrummie

Well-Known Member

wireman

Well-Known Member

Keow Helghor

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