Regarding a correct solution..... Centerline's correct solution was to take his distributor to a Technician who then ran it on a distributor machine and corrected the curve and limit via the info that Centerline had provided.
The trouble with today's young mechanics is that they do not know how to repair a part..... they simply replace it!
Repairing has become a lost art!
Regarding total timing being seen with a timing light ....... I believe that is what Lou has done!
Good for you, Lou.... I hope that your on-the-water test is fruitful.
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Again your 100% wrong as usual.
The ONLY answer/solution to this problem is to replace.
There is no other way to do it properly.
Modifying an already modified component is back yard mechanics.
If that is what you are promoting then its obvious you dont have a CLUE.
Anyone who works or has worked in the business knows, replace.
marine businesses dont sell used repaired parts, they sell NEW.
Of course there are exceptions such as carbs etc.But this is not one of them.
Maybe in Volvo Piece of sh!t world that is how its done...
But not in the mercruiser world.
OEM part altered/modified........Replace it with OEM.
You, again give bad advice....
What you have completely wrong here is,
He diagnosed the timing as the issue- then diagnosed the Distributor as the root cause.
At that point the distributor should have been scrapped and replaced. Not brought to a shop only to be modified again as you suggested.
Of course what he does in the end is his business and how he chooses to resolve it is his choice.
YOU should not be pointing to that solution in the open forum.
Take your opinions and SPEW, OFF LINE in a private message!