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SAAC Forum => SAAC Forum Discussion Area => Topic started by: csxsfm on November 19, 2024, 09:51:13 PM

Title: C5OF Distributor Advance Curve Specifications
Post by: csxsfm on November 19, 2024, 09:51:13 PM
Trying to validate a distributor.  On the C5OF what is the specification for maximum distributor advance and at what distributor rpm does it occur?  Thanks.
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: rockhouse66 on November 20, 2024, 08:34:04 AM
A C5OF-E uses the 13/18 reluctor.  If it is assembled correctly, the maximum mechanical advance at the crankshaft will be 2 X 13 = 26 degrees.
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: csxsfm on November 20, 2024, 09:18:07 AM
Thanks for the reply.  Second question is at what distributor rpm is the 13 degrees achieved?
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: JohnSlack on November 20, 2024, 04:33:54 PM
Quote from: csxsfm on November 20, 2024, 09:18:07 AMThanks for the reply.  Second question is at what distributor rpm is the 13 degrees achieved?
From the Ford Spec sheet

C5OF-12127-E
  650 RPM - 2 1/4° to 3 3/4°
  750 RPM - 4° to 5 1/2°
1,000 RPM - 6 1/2° to 7 1/2°
1,600 RPM - 7 1/2° to 8 3/4°
2,000 RPM - 8 1/4° to 9 3/4°
Steady advance from 9 3/4° to 13°
At some point around 2,500 RPM the distributor max advance is 13°
The limit is 14°

Those numbers are distributor machine numbers


John
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: rockhouse66 on November 20, 2024, 09:14:36 PM
IMO no way the curve results will ID a distributor.  Most of the ones I work on have been messed with.
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: csxsfm on November 20, 2024, 09:29:05 PM
It is a C5OF  My question was to validate it is operating to specification.  Thanks.
Title: Re: C5OF Distributor Advance Curve Specifications
Post by: JohnSlack on November 20, 2024, 09:57:58 PM
Quote from: rockhouse66 on November 20, 2024, 09:14:36 PMIMO no way the curve results will ID a distributor.  Most of the ones I work on have been messed with.

Agreed on both counts.