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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #1  
Old 12-03-2014
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Rose Mary Rose Mary is offline
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Default perkins kohler genset again

Hi group
OK back to getting the genset to start.
Starter rebuilt and new solenoid installed.
2 different batteries checked under load good.
Neg battery ground cleaned and retightened.

So...can only crank the starter a couple times, short bursts and it pulls the battery down...why? either battery
So could there be a short somewhere?
Also where is the main genset ground? Could that be the problem? Grrr
Guess I will have to call in a mobile wrench..oh no not that!
Anyone coming south on the I-5 near Roseburg?

Thanks
Rose Mary
541 671-1153
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  #2  
Old 12-03-2014
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FWIW, I have had rebuilt starters that were bad right out of the shop. Did you buy a reman or have yours rebuilt?
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  #3  
Old 12-03-2014
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Hi chap,
had mine rebuilt...
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Old 12-03-2014
Harold,Cat&Sam Harold,Cat&Sam is offline
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I agree with Mr Chap . Sounds like a bad rebuild .
I would think that if there was a short in the cable , you would know by now. It would get hot and smoke somewhere between the battery and the starter.
I prefer new starters and alternators over rebuilt ones. Seen a many of them no good out of the box and many of them go out prematurely.

Would love to help ya if i was closer
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  #5  
Old 12-03-2014
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I've had starters with worn bushings that allowed the armature to rub or lock up against the fields. When starter engages a side load is placed against the armature. Your rebuilder may not have replaced the bushings.
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  #6  
Old 12-04-2014
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Thanks all for the ideas..
it was a good recommended shop, they did replace bushings etc...hate to have to pull that bugger again...talk about bruised hands. Next time I will remove the radiator hose....

Would the starter pull down the battery that quickly? Couple quick cranks and the sound from the battery drain slowing it down...?
Could it be a bad new starter solenoid?

Thanks for trying to help me..it is quite frustrating. Just want the genny back in operation..

Regards
Rose
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Old 12-04-2014
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Rose Mary
You mentioned you load tested your batteries,thats good.
I have load tested my batteries with a tester (thanks Rick) and they checked good, I still had the no crank/slow crank syndrome. Took the batteries to the battery store, they used one of the new digital testers and determined one of the two batteries was defective,luckly it was under warranty --no cost. So I'm just saying retest the batteries,clean clear connections are a must. You could try jumping straight to the starter lugs to see what happens.
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  #8  
Old 12-04-2014
Fujimo Fujimo is offline
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Rose Mary, you could try a separate pair of jumper cables, and a separate battery, this will give you a new complete circuit make sure they are heavy duty. If possible put positive right on starter positive. This will help to eliminate other wiring. Along with ground to engine.
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  #9  
Old 12-04-2014
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i always load test the battery cables too.
i have found many problems that other shops missed doing that.
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  #10  
Old 12-04-2014
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Thanks for the suggestions.
I did take the batteries in to a shop and watched them do the load tests on a digital tester. I'm still not sure about them tho..

Randy, not sure what you mean..should I take the battery cables off and in to be tested..how do they test them?

Not quite sure about how to use jump cables on the starter.. do I remove the other leads from the solenoid?

Rose

PS I replaced the starter solenoid..could it be bad?
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Last edited by Rose Mary; 12-04-2014 at 01:25 PM. Reason: add solenoid question
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