[Healeys] Starter resistance
michaelsalter at gmail.com
Fri Apr 17 08:13:21 MDT 2015
I would recommend two checks.
1. Check the voltage between the threaded terminal on the starter motor and
ground as you crank the engine. It should be in the 9 - 11 volts range.
2. Check the current draw of the starter under load. This requires a clamp
on ammeter which is a tool worth adding to your collection. The current
draw should be in 100 - 200 range.
If you have at least 9 volts and the current is over 200 the supply to the
starter is okay and you need to look into problems with the motor itself
(internal short) or the drive (bent or incorrectly positioned).
If the voltage is under 9 volts and the current flow is under 200 then you
need to check the battery, cables, solenoid,ground straps and master switch
Healeys are not the best "crankers" even when everything is in good
condition because of the length of the electrical path and the 14
connections in it all of which need to be in good condition for the system
to operate correctly.
On Thu, Apr 16, 2015 at 6:49 PM, John Spaur <jmsdarch at sbcglobal.net> wrote:
> I am back to having starter motor issues.
> The starter turns over very slowly and will stop turning at all. I
> bypassed the battery cutoff switch because it was getting hot, which
> indicates too much resistance. Now when I turn over the starter, using the
> ignition switch, the cable from the solenoid to the starter motor gets hot
> at the connection to the starter motor. All connections are tight.
> The battery is fully charged.
> What could be causing the cable to overheat? What should I check?
> Thank you,
> John Spaur
> ’62 BT7
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*If you can't fix it with a hammer, you've got an electrical problem.*
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