The Ford Barn

Bill OH · 12-10-2022, 12:15 PM

Look for voltage drop in your starting circuit by connecting a voltmeter across a cable and try engaging the starter. If the meter moves up more than .05 volt, get the connections cleaned or a heavier cable. Connecting from the battery negative to the starter terminal and engaging the starter should not show more than 0.1 volt. You have disclosed that you do not have a cable from the firewall to a head bolt. You need that cable. You also need to check for voltage drop by connecting the voltmeter to the positive of the battery and to a head bolt and engage the starter. Again, the meter should read 0.1 volt or less. You have an Optima battery? Puts out very satisfactory starting capability.

12-10-2022, 12:15 PM	#28
Bill OH Senior Member Join Date: May 2010 Posts: 454	Re: Hard hot Start Problem (common) Look for voltage drop in your starting circuit by connecting a voltmeter across a cable and try engaging the starter. If the meter moves up more than .05 volt, get the connections cleaned or a heavier cable. Connecting from the battery negative to the starter terminal and engaging the starter should not show more than 0.1 volt. You have disclosed that you do not have a cable from the firewall to a head bolt. You need that cable. You also need to check for voltage drop by connecting the voltmeter to the positive of the battery and to a head bolt and engage the starter. Again, the meter should read 0.1 volt or less. You have an Optima battery? Puts out very satisfactory starting capability. Last edited by Bill OH; 12-10-2022 at 03:01 PM.