Randall,
The numbers came from a vacuum advance distributor chart from my British Leyland
Triumph Repair Operation Manual for TR4, TR4A, TR250,TR5 and TR6 published in
1977.
I bought it from a Jaguar dealership in the early 80's. The chart states degrees
crankshaft advance- minimum and maximum at the top and inches of Hg - vacuum on
the side. I have found some errors in the manual through the years. The best
one
is the firing order for the TR6 is wrong (1-5-3-4-6-2) should be (1-5-3-6-2-4).
Greg Perry
-----Original Message-----
>
>> Vacuum Advance dist. 40795
>>
>> Inches Hg Degree Crank advance
>> 2.0 0
>> 3.0 1
>> 4.0 1.75
>> 5.0 2.5
>> 6.0 2.75
>
>Interesting numbers, Greg. Where did they come from ? In particular, why
>do you believe those to be crank degrees instead of camshaft degrees ?
>
>Randall
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