Timing, points gap etc.
Posted: Sun Feb 04, 2024 1:37 pm
Good afternoon all,
I have just started increasing my knowledge of my P1 12 tourer again, clean tank, fit fuel filter, clean carb and such.
I have recently acquired a multi meter that also incorporates a dwell meter, now as far as I can find out the dwell angle on a 4 cyl. tourer should be 45degrees, plus or minus 4, (max gap 0.015) having run the engine it shows as 89.4 degrees (0.018), not quite what I was expecting. I have never changed the points gap since I acquired Mathilda, the engine runs quite smoot at all revs, but I do feel that the engine is not as powerful as I would expect, she does run a bit rich, no matter how I fiddle with the mixture setting and when coming off the throttle she sometimes "pops".
Having never worked with this age of engine, would it be worth setting the points gap to 45 degrees and check the timing, I am a bit hesitant as at the moment she is running but changing too many variables might well get me down a rabbit hole I would regret.
The bit I am struggling with is that to reduce the dwell angle, the points gap needs to be increased but the measurements of the feeler gauges suggests the opposite..
Any advice is appreciated
Will
I have just started increasing my knowledge of my P1 12 tourer again, clean tank, fit fuel filter, clean carb and such.
I have recently acquired a multi meter that also incorporates a dwell meter, now as far as I can find out the dwell angle on a 4 cyl. tourer should be 45degrees, plus or minus 4, (max gap 0.015) having run the engine it shows as 89.4 degrees (0.018), not quite what I was expecting. I have never changed the points gap since I acquired Mathilda, the engine runs quite smoot at all revs, but I do feel that the engine is not as powerful as I would expect, she does run a bit rich, no matter how I fiddle with the mixture setting and when coming off the throttle she sometimes "pops".
Having never worked with this age of engine, would it be worth setting the points gap to 45 degrees and check the timing, I am a bit hesitant as at the moment she is running but changing too many variables might well get me down a rabbit hole I would regret.
The bit I am struggling with is that to reduce the dwell angle, the points gap needs to be increased but the measurements of the feeler gauges suggests the opposite..
Any advice is appreciated
Will