Starter Motor Amperage

[mtntee20]

This one should be an easy one. I have found documentation on a Model T starter motor, stating the amperage to be 160 amps during use. I am planning to add a starter solenoid and want to ensure I purchase one with an appropriate amperage rating.

I would like to know if the 160 amp rating is correct? I would also like to know what amp rating solenoids are currently being used successfully. I am looking at a 200 amp 6 volt solenoid.

Thank You all for reading this and especially those answering this old man's questions.

Good Luck to you ALL.
Terry

[DanTreace]

Have used the std. type 6v starter solenoid by the vendors, the capacity for battery current thru the solenoid to the starter motor is likely 250-300 amps.

The solenoid coil would draw about 10-12 amps to keep the internal contacts closed for the heavy battery current passing thru.

The solenoid isn't for constant use, 10 seconds or more of closed switch should need several minutes of cool off for the solenoid coil.

Same with the starter motor, heavy draw of continuing to operate the starter motor to turn over a non-firing T engine isn't good for the starter either.

Allow cool down time if using the starter motor more than many engine turn overs on hard starting Ts.

[mtntee20]

Dan, Thank you for your input. I sincerely appreciate your help.

Terry

[RecklessKelly]

A NOS 6V one from ebay will hold alot better than an auto parts grade one. Twice the price but install only once. From my experience, those new generic ones have chinsy die cast plunger contacts that dont last.