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jdemaris
01-02-2007 18:23:07
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Re: Help! replaced 450C solenoid but still won't s in reply to RussT, 01-02-2007 10:20:35
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The starter should turn it over fairly well if voltage is over 9 volts at cranking. The system is designed to work at 9 - 10.5 volts for normal operation. On a hot day with two or three huge batteries you could get the cranking voltage up higher - but I'm getting off point. Testing is not always easy. The way to know for sure - is - to load test the batteries and ascertain, for sure, they are putting out suffient amperage at rated voltage. If I was on a "road call", first thing - I'd load check your machine at the battery post on the solenoid. If #1 ample power is available there, and #2 voltage does not drop lower than 9 volts when cranking - than it sounds like your starter is not drawing enough current - and therefore not creating the needed force to spin you engine over fast. To the converse, if your starter was damaged in such a way that it drew too MUCH current, the cranking voltage would get even lower than 9. Also, if your batteries were the problem, again - cranking voltage would be low. It's a pretty easy job to just pull the starter off, take it apart, and look at it. You'll probably find worn out brushes, burnt up brush holds, perhaps a worn-out center-bearing, rubbing armature, etc. One other note- 450C calls for a bigger starter than the older 450s and has more cranking amps. The proper 450C starter is a 900 amp unit and the case is straigh - no step-down on back. If the starter does have a step-down, i.e. two diameters, it's a older 450 or a 350 starter rated at 700 amps.
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