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Engine grounds??? how many?

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Old Aug 25, 2011 | 07:16 PM
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Default Engine grounds??? how many?

Almost ready to start the re-assembled '65.
Just wondering...the only ground strap on the engine was the one on the driver-side motor mount. The exhaust is side-pipes (no grounds like under car exhaust)
The strap on the accelerator/manifold hasn't been there for years.
The negative cable mounts on the starter bolt along with a wire from the starter harness(probably a ground-wire.)
Do I need any more? It ran fine for 44 years as is.
Thanks
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Old Aug 25, 2011 | 08:23 PM
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The grounds at the accelerator arm, and exhaust pipes, are part of the radio system.

I believe if your car did not have a radio originally, it would have only had a single ground at the motor mount, plus the negative battery cable, and the ground strap just under the left A-pillar where the birdcage is grounded to the chassis.
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Old Aug 25, 2011 | 08:27 PM
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Originally Posted by 62Jeff
The grounds at the accelerator arm, and exhaust pipes, are part of the radio system.

I believe if your car did not have a radio originally, it would have only had a single ground at the motor mount, plus the negative battery cable, and the ground strap just under the left A-pillar where the birdcage is grounded to the chassis.
that is correct. all the little copper ground straps are part of the U69 radio. look at your A.I.M.
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Old Aug 25, 2011 | 09:29 PM
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It had a radio from day one.
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Old Aug 25, 2011 | 09:36 PM
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Originally Posted by joseph p
It had a radio from day one.
Yes, but my observation was that only cars with radios had more than the basic grounds anyway, so your car missing so many isn't a problem.

More grounds is always a good idea on these old cars though.
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Old Aug 25, 2011 | 09:50 PM
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Originally Posted by 62Jeff
Yes, but my observation was that only cars with radios had more than the basic grounds anyway, so your car missing so many isn't a problem.

More grounds is always a good idea on these old cars though.
Thanks. Any suggestions for another?
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Old Aug 25, 2011 | 09:54 PM
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Originally Posted by joseph p
Thanks. Any suggestions for another?
I'd add a ground strap to the passenger motor mount.

Clean and check the negative battery cable connection at the engine, clean and check the ground strap under the left rocker panel near the A-pillar. That ground strap under the A-pillar is the only path to get ground from the chassis to the interior, instruments, and the rear of the car.
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