| carcrazy | -- 02-04-2020 @ 3:43 PM |
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Is there a carburetor spacer made of aluminum or iron that can be used on a 1930's or 1940's Ford Flathead V-8 that will provide a steady smooth vacuum signal that can be read by a vacuum gauge? It would have to provide a signal from both barrels of the carburetor to indicate the conditions of all eight cylinders. In the past, I have attempted to take signals on a 1937 V-8 from either the front vacuum port in the intake manifold which samples cylinders #5 and #6 or the rear vacuum port which samples cylinders #7 and #8. Neither of these ports provides a proper signal for a vacuum gauge. Please let me know if you are aware of a source for such a spacer. Thank you.
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| 35ford | -- 02-05-2020 @ 6:57 AM |
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The Vacuum Plate used for the Columbia shifting might work as it has a large take off to operate the shifting control . jas
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| 40 Coupe | -- 02-05-2020 @ 7:10 AM |
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The original wiper port should provide smooth steady vacuum. No need for additional vacuum plate. Check your reading with another vacuum gauge. Most gauges have a very small orifice in the vacuum line yours may have fallen out or may be lodged in one of the rubber vacuum lines that comes with the gauge.
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| TomO | -- 02-05-2020 @ 7:11 AM |
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You should see a steady vacuum at either the front or rear port with your vacuum gauge. Both ports sample both sides of the carburetor. If you do not see a steady needle, you have engine or carburetor problems. Tom
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| flatheadfan | -- 02-13-2020 @ 8:49 AM |
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I use a vacuum plate that was commonly used for a lot of accessory connections such as a heater, brake booster and yes for vacuum gauges. They frequently pot up on eBay for $10-15 bucks. Tom
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| carcrazy | -- 02-13-2020 @ 9:28 AM |
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Thank you flatheadfan. I will be on the lookout for one at the next swap meet.
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| trjford8 | -- 02-13-2020 @ 4:32 PM |
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Those plates are out there. I just found one at a swap meet for $5
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