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Sbc 406 won’t crank


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Roesler
New User

Sep 26, 2019, 5:49 PM

Post #1 of 6 (1073 views)
Sbc 406 won’t crank Sign In

I’m having trouble with my engine, the alternator went out so I swapped alternators and now the car won’t start I cannot figure out what the problem is I am between thinking it’s a bad flywheel,starter, alternator, wiring these are the only things I can think of I have a video of me trying to crank it over also if it helps it’s a sbc 406 13:1 compression


Roesler
New User

Sep 26, 2019, 5:51 PM

Post #2 of 6 (1071 views)
Re: Sbc 406 won’t crank Sign In

https://vimeo.com/362691054


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 26, 2019, 6:03 PM

Post #3 of 6 (1067 views)
Re: Sbc 406 won’t crank Sign In

Yes, that definitely sounds like a starter/flywheel type problem. I don't see the connection with the alternator though.
You should remove the flywheel inspection cover if you have one. If not remove the starter to inspect the flywheel.

PS, what the hell is an sbc?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Sep 26, 2019, 6:04 PM)


Roesler
New User

Sep 26, 2019, 6:45 PM

Post #4 of 6 (1051 views)
Re: Sbc 406 won’t crank Sign In

Sbc is small block Chevy, and it cranked fine before I swapped alternators that’s why I’m confused and I definitely will try to take a look at those but was hoping they were still fine since the car would still start if it had enough battery power to it when the old alternator was wired up


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 26, 2019, 6:48 PM

Post #5 of 6 (1045 views)
Re: Sbc 406 won’t crank Sign In

Well, I don't see the connection.
You still need to find out why the starter is not connecting.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Roesler
New User

Sep 26, 2019, 6:54 PM

Post #6 of 6 (1041 views)
Re: Sbc 406 won’t crank Sign In

Yeah, sorry it’s late but I’ve wired the alternator using two wires the exciter and the negitive






 
 
 






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