pamcopete
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gggGary,
The engine has just been completely taken apart and had the cam shaft and crank shaft split in two and then welded back together. The timing mark for the rephased cylinder was scribed by hand using a degree wheel. We are talking about the relative timing between the cylinders, not the absolute or true timing of one cylinder vs the other by measuring on the crankshaft for a device that is mounted on the cam shaft and is subject to any slight misalignment in either the welded cam shaft or crank shaft or both, cumulative, against a hand drawn timing mark on the crank, and also subject to the timing chain. Despite all these vagarities, the difference nets out to 5 degrees which can be halved by splitting the difference, a common practice with points hence the relatively wide area of acceptable timing marks before and after the "F" mark.
In any event, even if the timing marks could be set perfectly, that does not mean that they are correct in the absolute sense due to the many variables as listed above.
In any event, he is focusing on the 5 degrees and he is adamant that he does not want to split the difference. At that point, there is nothing further that i can do for him and I had suggested that he return the PAMCO for a full refund and purchase another more suitable 277 ignition that has the adjustments he is looking for.
The engine has just been completely taken apart and had the cam shaft and crank shaft split in two and then welded back together. The timing mark for the rephased cylinder was scribed by hand using a degree wheel. We are talking about the relative timing between the cylinders, not the absolute or true timing of one cylinder vs the other by measuring on the crankshaft for a device that is mounted on the cam shaft and is subject to any slight misalignment in either the welded cam shaft or crank shaft or both, cumulative, against a hand drawn timing mark on the crank, and also subject to the timing chain. Despite all these vagarities, the difference nets out to 5 degrees which can be halved by splitting the difference, a common practice with points hence the relatively wide area of acceptable timing marks before and after the "F" mark.
In any event, even if the timing marks could be set perfectly, that does not mean that they are correct in the absolute sense due to the many variables as listed above.
In any event, he is focusing on the 5 degrees and he is adamant that he does not want to split the difference. At that point, there is nothing further that i can do for him and I had suggested that he return the PAMCO for a full refund and purchase another more suitable 277 ignition that has the adjustments he is looking for.
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