Starter RPM

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration
Model T Ford Forum: Forum 2016: Starter RPM
Top of pagePrevious messageNext messageBottom of page Link to this message  By Dave Loving on Friday, April 08, 2016 - 02:09 pm:

I have a freshly rebuilt starter, wired for 12v, when I bench tested it, it spun like a raped ape, over 1,000 rpm.
What is the normal speed for a T-Starter?

Dave


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Friday, April 08, 2016 - 02:33 pm:

It doesn't have to run that fast :-) The specifications of interest is stall torque (11 lb-ft) and ampere draw. See this thread: http://www.mtfca.com/discus/messages/179374/230594.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Friday, April 08, 2016 - 02:37 pm:

The work of turning the engine will slow it down considerably, but it doesn't have to be very fast. After all, if a car will start with a quarter of a turn by hand it doesn't need to be spinning rapidly. Maybe one of the guys who rebuilds starters will come up with a number of RPM for a bench test.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Harper - Keene, NH on Friday, April 08, 2016 - 02:43 pm:

Hi Dave,

That's 12 volts for ya. You "might" want to keep an extra bendix and a few springs on hand. Wink and a nudge. The engine needs to spin this fast:

https://www.youtube.com/watch?v=3pv6HWWOGYA&nohtml5=False


Top of pagePrevious messageNext messageBottom of page Link to this message  By JohnH on Sunday, April 10, 2016 - 07:39 pm:

starter


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ken Kopsky, Lytle TX on Sunday, April 10, 2016 - 10:05 pm:

It should spin much faster than that. Sounds like you have bearing drag. Most likely misalignment of the shaft bushing (T5105). Could be brush or commutator assembly errors too. The armature should spin freely with only a slight drag with the brushes down.

You don't EVEN want to know what a modern remanufactured starter will spin if 1000rpm scares you. :-)


Add a Message


This is a private posting area. Only registered users and moderators may post messages here.
Username:  
Password:

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration