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Old 08-29-2019, 01:21 PM   #1
RustyG
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Default Problem starting engine

1975 Scout II, 4 wheel drive, manual transmission, locking front axles, 345 Engine

Problem: the engine cranks over like there is no tomorrow but there is no electricity any where else. Battery is new, all connections in engine are secure, problem seems to be under the dashboard but nothing seems to be obviously wrong.
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Old 08-30-2019, 05:27 AM   #2
Winchested
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Default Re: Problem starting engine

8make sure all the bulk head connectors are clean. All your fuses have power etc.

You need to check the coil for power when cranking. The coil has to be sending power to the distributer.

This is basic super basic diagnosis.
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Old 08-30-2019, 08:28 AM   #3
RustyG
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Default Re: Problem starting engine

The problem isn't that engine is not starting. It's that there is no electricity anywhere. The only way to get anything to work is to make a direct connection from the battery.
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Old 08-30-2019, 09:25 AM   #4
Hondo
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Default Re: Problem starting engine

Are you jumping the starter to get the engine to turn over? If you are using the key switch, there is power somewhere. There should be a fusible link, I believe coming up off of the starter's battery connection (don't have my wiring diagram here) that may have gone poof.
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1975 Scout II healthy 258, Wide T19 , 4:1 D300 3:54s,
1972 Real clean stock Scout II P/S, P/B, 345, T18, 3:73s
1969 Mach I. Balanced ported 351W, 650 double pumper, Super T10, Detroit locker with 4.11s. Lowered with racing springs, bars, Konis etc.
(Don't worry about getting arrested when I drive the Scouts).
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Old 08-30-2019, 01:24 PM   #5
Scoutboy74
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Default Re: Problem starting engine

What's your history with this Scout? Has it ever worked right for you? Is this an old or a new issue? Is the wiring harness original/stock, previous owner molested, or aftermarket? How about the gauges in the dash? Stock or aftermarket?
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Old 08-30-2019, 02:13 PM   #6
RustyG
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Default Re: Problem starting engine

Hondo-Like I said in my original post the engine turns over great, however I had to put in a push button for the starter because the ignition switch would sometimes not work. Other than this problem the car has been very dependable
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Old 08-30-2019, 04:25 PM   #7
Winchested
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Default Re: Problem starting engine

An ignition switch is like $15 change it. Should have been done far before rewiring a push button in.
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Old 08-31-2019, 08:48 AM   #8
Hondo
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Default Re: Problem starting engine

You have answered my question, and Scout Boys as well. Sounds like your wiring is mostly original and was working fairly well until recently. Your added ignition switch is basically jumping the starter.The ignition switch is down at the bottom of the steering column, not on the other side of the key switch as you might expect. The ignition switch does multiple things, so adding your push button switch gets the motor to turn over, but doesn't do anything about getting power to the ignition or anywhere else. As I mentioned in my previous post there is a fusible link that comes off the terminal of the starter solenoid that also goes to the battery. It is your main power feed.Wiring diagram says it should be a 10 gauge wire #14. This goes up and through the "engine" bulkhead connector, which is the rectangular connector with the two 10 gauge wires that go to the ampmeter (it will be one of the two 10 gauge wires). Disconnect the connector from the firewall and make sure you have battery voltage at the engine bay side of this connector. It gets much more complicated on the other side inside the cab, so first step is to make sure the fusible link hasn't opened up.
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1975 Scout II healthy 258, Wide T19 , 4:1 D300 3:54s,
1972 Real clean stock Scout II P/S, P/B, 345, T18, 3:73s
1969 Mach I. Balanced ported 351W, 650 double pumper, Super T10, Detroit locker with 4.11s. Lowered with racing springs, bars, Konis etc.
(Don't worry about getting arrested when I drive the Scouts).

Last edited by Hondo; 08-31-2019 at 09:01 AM..
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