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sanitarymuffin
Samba Member
Joined: March 17, 2018
Posts: 2
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 Posted: Sat Mar 17, 2018 4:26 pm Post subject: Starter Always Runs after Install on 78 Bus? |
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Hi folks,
Newly registered, though lurking since July when I bought my 1978 bus.
I have pulled the old starter from our bus, and replaced it with model SR87. Now, upon reconnecting the battery cables the starter immediately begins to turn. I've disconnected the ignition switch wire, though the problem still remains.
I'm a not-so-mechanically inclined software engineer by trade, so this has been a good learning experience. I've consulted our factory manual, this forum, Google, and Youtube though so far haven't come across anything definitive.
Is it possible there's a junk solenoid on the new starter? Based on my understanding, the wire going to the ignition switch completes the circuit which gives the starter the juice it needs.
Any other things I might be overlooking? |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sat Mar 17, 2018 4:50 pm Post subject: Re: Starter Always Runs after Install on 78 Bus? |
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| s it possible there's a junk solenoid on the new starter? |
yes. The only way you could screw it up is if you put the battery cable on the same post as the strap going to the starter itself. The battery cable goes on the post that does not have the braid to it.
In the photo, ignore the text, it is for testing a starter that doesn't turn. You can see the one post has a copper strap on it and then the other has nothing. The one with nothing is where the battery cable goes. If you hooked it up that way the starter / solenoid is bad. Make sure the battery cable isn't touching the other post or strap.
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin
Last edited by SGKent on Sat Mar 17, 2018 11:01 pm; edited 1 time in total |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50351
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| Posted: Sat Mar 17, 2018 10:27 pm Post subject: Re: Starter Always Runs after Install on 78 Bus? |
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| Most likely what Steve suggested. If not that then something is wrong with the rebuild and you should take it back for an exchange. |
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Abscate
Samba Member
Joined: October 05, 2014
Posts: 22668
Location: NYC/Upstate/ROW
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| Posted: Sun Mar 18, 2018 3:29 am Post subject: Re: Starter Always Runs after Install on 78 Bus? |
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Make sure you are doing all this with the batterydisconnected.
Disconnect negative first, and reconnect negative last.
Don't rely on color of cables or anything but finding the plus and minus on the battery to ID the terminals , either.
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sanitarymuffin
Samba Member
Joined: March 17, 2018
Posts: 2
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| Posted: Mon Mar 19, 2018 8:56 am Post subject: Re: Starter Always Runs after Install on 78 Bus? |
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Thanks for the information. After taking another look, I did, in fact, screw the installation up: The battery cable was not properly connected. The bus started right up once I fixed it 
I didn't use the wrong terminal... I just didn't use a terminal  |
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