The Ford Barn

rockfla · 02-17-2025, 04:07 PM

Anyone have a number on just how many Amps a 6V flathead starter draws when it turns under load? Stock configuration

ScubaChief60 · 02-17-2025, 04:32 PM

Found this from 2021 on the Forum here: On 6v the draw should be under 450 amps

ford38v8 · 02-17-2025, 05:24 PM

Quote:

Originally Posted by ScubaChief60

Found this from 2021 on the Forum here: On 6v the draw should be under 450 amps

Wow. WOW! Like less than half of that. Over 200 amps would mean bad condition of the starter itself, the cables, the battery, or a new rebuild with tight bearings.

Bob C · 02-17-2025, 06:52 PM

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From Ford Service Manual 1946-48.

Torque RPM Volts Amps
4 ft. lbs. 1070 4.6 200
8 " 660 4.3 340
12 " 300 3.65 465
14 " Lock 3.5 500

02-17-2025, 04:07 PM	#1
rockfla Senior Member Join Date: Mar 2014 Location: Jacksonville FL Posts: 4,805	How many amps? Anyone have a number on just how many Amps a 6V flathead starter draws when it turns under load? Stock configuration

02-17-2025, 04:32 PM	#2
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 228	Re: How many amps? Found this from 2021 on the Forum here: On 6v the draw should be under 450 amps

02-17-2025, 06:52 PM	#4
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 9,359	Re: How many amps? Sponsored Links (Register now to hide all advertisements) From Ford Service Manual 1946-48. Torque RPM Volts Amps 4 ft. lbs. 1070 4.6 200 8 " 660 4.3 340 12 " 300 3.65 465 14 " Lock 3.5 500 Last edited by Bob C; 02-17-2025 at 06:58 PM.