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Old 11-12-2015, 12:33 PM   #11
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,937
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
You have a short. We track them with a tool called a amp hound.

The short caused your old alternator to charge at full output till it burned out.

Your new alternator will suffer the same outcome.

Nat
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Old 11-12-2015, 02:10 PM   #12
Mini-Skoolie
 
Join Date: Apr 2015
Posts: 18
Year: 1993
Chassis: Vista
Engine: Dt360
Thanks. Is this something a shop can help me with? You think this is what damaged my last starter as well? It was less than a year old at the time. The prior bus owner put in the toggle switch that's between the batteries and the solenoid and maybe they did something strange.
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Old 11-12-2015, 02:18 PM   #13
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,937
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
Shop fee's are too expensive.

What I said was I work at a bus shop. The tool we use to find shorts is called a amp hound.



Off name brand units run around $50.

Nat
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Old 11-12-2015, 03:45 PM   #14
Bus Nut
 
Join Date: Jun 2013
Location: Picton,Ont, Can.
Posts: 542
Year: 1997
Coachwork: Bluebird
Chassis: GMC
Engine: Cat 3116
Rated Cap: 72
"The prior bus owner put in the toggle switch that's between the batteries and the solenoid and maybe they did something strange."

Does this statement mean that the starter relay was bypassed and connected straight to the solenoid? I would hope not. If it is that way you might not be getting near enough power for the starter to engage let alone the start solenoid. Check that angle and you may find corrosion on the start relay terminal block. This would explain intermittent starter engagement. Mind you, disconnect the batteries before attempting this, fix the problem then reconnect and start.
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Old 11-12-2015, 04:32 PM   #15
Mini-Skoolie
 
Join Date: Apr 2015
Posts: 18
Year: 1993
Chassis: Vista
Engine: Dt360
There's a little toggle switch on my dash next to the key. When I turn my key this only primes my bus and the wait light comes on. Once the light goes off the little toggle switch is what throws my starter. When I engage the switch the starter *should* spin and the bus start. Sometimes when I throw the switch nothing will happen for a few seconds then the fuse will blow or nothing will happen for a few seconds then the starter will spin.

The prior bus owner told me when I got it that the starter switch used to be outside but he put a new one inside for convenience.

I've only checked a little but I think this toggle switch connects the power from the batteries to my solenoid that's not on the starter but in a side box area.

I've figured in the past that this custom job could have been a little strange so I'm gonna check it out And trace my lines for a short.

Thanks for any info!
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