Re: T245 Timing curve?
Posted: Sat Mar 11, 2017 9:29 am
Andy, if you haven't found the advance curve yet, I think it's in the Electrical Equipment (Autolite) manual, TM9-1825B. Table XII lists the advance curve for an Autolite IAU-4005UT distributor as curve No. CU-770. Table XIII gives a tabular (i.e. not a graph) curve description, showing the advance degrees at five different RPMs.
One interesting note: the maximum advance listed in the TM9-1825B is considerably less (both in advance degrees and in RPM) than the maximum advance listed in the "Description and Data" section 123b of TM9-8030.
The timing curve that you posted in February is not too far off of the CU-770 data in TM9-1825B.
I purchased a softbound copy of TM9-1825B years ago from Portrayal Press (http://www.portrayalpress.com), but I don't see it on their website; maybe it's by special order now. It is available spiral bound from Canham & Sons: http://www.themanualguys.com/303.1%20~% ... 201952.htm
One interesting note: the maximum advance listed in the TM9-1825B is considerably less (both in advance degrees and in RPM) than the maximum advance listed in the "Description and Data" section 123b of TM9-8030.
The timing curve that you posted in February is not too far off of the CU-770 data in TM9-1825B.
I purchased a softbound copy of TM9-1825B years ago from Portrayal Press (http://www.portrayalpress.com), but I don't see it on their website; maybe it's by special order now. It is available spiral bound from Canham & Sons: http://www.themanualguys.com/303.1%20~% ... 201952.htm