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10-13-2020, 06:04 PM | #21 |
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Re: Autolite Spark Users Only
Hard to tell by the picture, but does that look more like "oil fouling" than carbon fouling, it looks kind of wet?
I also run 216's
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1957 Fairlane 500 1939 Ford Coupe Last edited by Cobra Joe; 10-13-2020 at 06:48 PM. |
10-13-2020, 06:06 PM | #22 |
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Re: Autolite Spark Users Only
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10-13-2020, 06:06 PM | #23 |
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Re: Autolite Spark Users Only
That is the same symptom I just tracked down on the "Missing at Full Throttle" thread. Turned out to be a broken connection in the spark plug cable to cylinder #2. With the engine at idle pull any other spark plug wire off and listen for the slight RPM drop. Put that wire back on and pull the wire from the offending cylinder; it will probably not affect the RPM, indicating that cylinder is not firing.
Check continuity of the spark plug wire from the distributor end to the plug end. If you are using solid copper plug wires it will read near zero Ohms. If you are using carbon core wires (bad idea) or spiral wound wires you will find resistance of up to 4,000 Ohms per foot. And clean or replace the black plug. |
10-13-2020, 06:16 PM | #24 |
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Re: Autolite Spark Users Only
I'm having trouble with a leaking head gasket or something in one cylinder you might have seen my other post. This plug could have come from that cylinder, don't know. Just ordered new plug and will watch every thing closely moving forward.
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10-15-2020, 01:03 PM | #25 | |
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Re: Autolite Spark Users Only
Quote:
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10-15-2020, 04:46 PM | #26 |
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Re: Autolite Spark Users Only
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10-15-2020, 05:59 PM | #27 |
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Re: Autolite Spark Users Only
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10-16-2020, 12:30 PM | #28 |
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Re: Autolite Spark Users Only
I guess its hard to tell how the air flow is through the air cleaner without pulling all the stuff out. Do most guys run there stock cars with the original style air clean, seems it could be problematic.
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10-16-2020, 12:52 PM | #29 |
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Re: Autolite Spark Users Only
Many have modified their original oil bath air cleaners to accept a dry modern filter.
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10-16-2020, 01:26 PM | #30 |
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Re: Autolite Spark Users Only
The air blows down onto the surface of the oil then up through the filter material. It is not a direct path.
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10-16-2020, 04:29 PM | #31 |
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Re: Autolite Spark Users Only
“Do most guys run there stock cars with the original style air clean, seems it could be problematic.”
Mine has been on my car for 70 years. It works just fine. The worst part of an oil bath air cleaner is forgetting it’s got oil in it and tipping it a little when you have it off making a mess.......Mark
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10-16-2020, 04:57 PM | #32 |
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Re: Autolite Spark Users Only
Mine is not an oil bath as far as I can tell
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10-16-2020, 05:37 PM | #33 |
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Re: Autolite Spark Users Only
Turns out there are both dry and oil bath filters (so much for what I know!)
Last edited by JSeery; 10-16-2020 at 06:47 PM. |
10-16-2020, 06:38 PM | #34 |
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Re: Autolite Spark Users Only
Just steel wool or copper wool? Looks pretty black too, could be why it runs rich.
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10-16-2020, 06:43 PM | #35 |
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Re: Autolite Spark Users Only
A past thread on this filter. https://www.fordbarn.com/forum/showthread.php?t=98754
https://www.earlyfordv8.org/forum/pr...=18&Topic=3401 |
10-16-2020, 06:48 PM | #36 |
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Re: Autolite Spark Users Only
I think I'm going to opt for some kind of replacement and save this one for the next owner.
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10-16-2020, 10:41 PM | #37 |
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Re: Autolite Spark Users Only
To determine if the air cleaner is clogged, start the engine and let it idle. Remove the air cleaner with the engine still running, If the engine speed increases significantly, the cleaner is clogged. Clean and oil it.
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10-18-2020, 09:33 AM | #38 |
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Re: Autolite Spark Users Only
I don't understand why people don't buy an AF meter/ There not very expensive and can solve allot of problems in a fraction of a second!!!!!
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10-18-2020, 09:35 AM | #39 |
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Re: Autolite Spark Users Only
In what is an AF meter?
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10-18-2020, 09:58 AM | #40 |
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Re: Autolite Spark Users Only
An "Air/Fuel" meter will tell you the ratio of fuel to air in the intake charge (generally around 14:1) by analyzing the engines exhaust. They essentially need two inputs; 12 volts to power them and a feed from the exhaust. They come with a special cable and a sensor the mounts into the exhaust stream. This can be done in one of two ways; either a bung can be welded into the exhaust pipe (ideally 36" from the exhaust port), or a "Sniffer Tube" that clamps temporarily into your tail pipe. . Obviously, the former is a better way of doing it, but that latter usually is satisfactory.
I have one mounted on my engine test stand. It works well, and cost about $120, including the gauge, cable, and sensor. |
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