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> Electrical - Starting Issue
FUEL14
post Jan 11 2021, 03:55 AM
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Hi, I have searched the forum for answers to starting issues, but I can't seem to find a thread for a problem exactly like mine.

The 3-year restoration of my car is about to come to an end, with a plan to be on the road early February. The wiring has been checked by a professional and modified/repaired where necessary. Everything was working great, starting no problem at all. But, just a couple of days ago, she turned over in the morning and didn't in the afternoon. Nothing was done to the car in between aside from a rear coilover adjustment.

When I turn the key to the first position, I can hear the fuel pump whirring and all lights, horn etc work ok. But when I turn further to crank, all I get is a single click from the under-dash fuse box area.

I installed a new battery as part of the restoration. The voltmeter is reading 13.4.

Any ideas what might have gone wrong?

Thanks in advance, Luke.
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ctc911ctc
post Jan 12 2021, 02:07 PM
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This is a very common problem, unfortunately, there are a few weak links.

1. The Ignition switch is susceptible to burning-out. The starter solenoid sucks a few more amps than the switch can handle. Some people add a relay at the starter to fix this problem.

2. Seat belt switch - unless you are going to Carmel, get rid of it.

3. Starter Solenoid - the bendix starter has many weird starter solenoid troubles. I went through 3 cheap ones before getting to one where it would start reliably. I have a writeup on this within 914 world.

4. Junction Box - behind the driver seat is a box with a plastic cover (held down with a nut on a long rod down the middle) where the engine hardnesses and the ignition harness come together. Corrosion can be a voltage stealer at this junction. Can steal the umph necessary to engage the starter solenoid.

5. Chassis Ground - Make certain that the ground strap is connected, clean, and tight. Many stories about these being 'part' of a larger problem.


There are probably more, but that's what I got.

CTC
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