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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

6v positive ground Vacuum pump?

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Old Mar 12, 2025 | 01:40 PM
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6v positive ground Vacuum pump?

1955 F250 6v positive ground system

I have just finished mocking up the install of my vacuum booster on the power brake conversion with front disc brakes. It struck me that I don't think there is a vacuum source I can use for the brakes on the 223 IL6. I haven't found electric wipers.

1. Does that motor have a vacuum source I can use for power brakes?

2. If not I assume I need a vacuum pump and a vacuum reservoir? What are people using for a 6v system?

I have searched pretty extensively and haven't been able to find a clear answer.

Thanks for the help as always!
 
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Old Mar 12, 2025 | 02:06 PM
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Wipers are connected through the silencer which is plumbed into the manifold highlighted in yellow.

Vacuum brakes are connected at the manifold by removing the purple plug and having a fitting threaded into the blue highlighted opening.
 
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Old Mar 12, 2025 | 02:26 PM
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Wow. Got it. I have electric wipers so that's even better as there is only one draw on the vacuum. I will go take a look and see if I can remove those fittings or if they are out.

Thanks!
 
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