| Re: [GMCnet] Hi-Torque Mini Starter [message #312519 is a reply to message #312512] |
Wed, 25 January 2017 19:23   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Back in the early days of Olds V-8 engines (1949 - 1954) they had 6 volt
electrical systems. When they got warmed up, the starters would heat soak.
The electrical resistance would increase dramatically, they would crank
slower and with the additional resistance, the ignition spark would get
weaker. They would crank, but not start. In 1955, Olds went to a 12 volt
GENERATOR. They continued using the larger diameter battery cables used
with the 6 volt system for a couple more years until their stock of wire
harnesses and cables were used up. Then they changed over to harnesses and
cables that were one half the diameter of the 6 volt. That is essentially
the harness sizes that the GMC was originally fitted with. So much for the
history of GM wire harnesses. The starters still do not have shields to
protect the starter from exhaust heat, they still heat soak, and when the
harnesses degrade with age and heat, they still slow crank and no start.
All this puts more wear and tear on the bushings and brushes and pinion
gear and solenoid in the starter. The fix? Battery cables and chassis
grounds. Chase the harnesses from end to end, convert ignition systems to
electronic, GET RID OF THAT RESISTOR BURIED INSIDE THE ENGINE WIRE HARNESS,
keep your batteries in good shape and charged. All this does not cost very
much. But, if you really want your coach to start quickly, install fuel
injection. Day and night difference. It goes without saying much more, that
a good electrical tune up of the plugs and secondary wires, cap and rotor
helps a lot too.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Jan 25, 2017 4:40 PM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:
> My experience has been, dragging is usually due to a worn front bushing,
> assuming proper connections. An easy cheap fix.
>
> --johnny
> --
> '76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and
> add - ons.
> Braselton, Ga.
> "The road goes on forever, and the party never ends" --Robert Earl Keen
>
> _______________________________________________
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