Starter Motor Cranking Speed 200rpm normal?? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-21-2009, 02:42 PM   #1
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Default Starter Motor Cranking Speed 200rpm normal??

I have starting problems. The cranking speed for my starter motor is 200rpm according to my ecu readout. Is that normal? I have a voltage drop of 10volts from 12volts from the ecu readout I guess I also need to check with a voltmeter.

What should be the normal cranking speed of a starter motor on an MX5 1.8?

Thanks in advance.


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Old 10-21-2009, 03:14 PM   #2
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mine cranks at about 350rpm. Voltage drops to under 10V, but I have a tiny Odyssey PC680.
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Old 10-21-2009, 04:10 PM   #3
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350 to 400 rpm would make better sense.

When I crank the engine it takes a good 10 seconds before it catches.

Also the coil pack has been changed to a ford focus. This idiot garage who tuned my car gave me all sorts of problems.

He had set fire to my engine bay so I am concerned that the starter motor may have gone faulty because of that.

Avoid that garage!
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