Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#354150 10/19/15 02:19 AM
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I am pretty certain that I can figure out how to clean the oil bath filter for the carb air - but I am not sure how to oil it.

Everything I can find online references filters that set horizontally, and usually have a FILL line on the oil bowl. Since the stovebolt (mine is a 1931), has the filter mounted vertically, I am puzzled by the oiling of it - how much do you use? - So that it doesn't drip out the bottom when mounted? How do you get it spread evenly on the wire mesh? Is it normal that it would drip out the bottom after mounting? What is the process or the method to oil it properly?

Thanks.


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1931 Chevrolets did not have an oil bath air filter because of its vertical position on the updraft carburetor. The wire mesh in the air cleaner is designed to catch the dust in the air and not to be oiled.

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The 1931 air cleaner flame arrested is cleaned by slushing in gasoline, and then dipping in motor oil, and allow to drain. Every 5000 miles on clean roads, 1000 miles on dirty roads, or every time the engine is tuned. (1931 repair manual , pgs 136 and 137.)


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Ok, now I am even more confused.

Are those 2 answers contradictions? Seems I remember reading jack39rdstr reply in the owners manual, and that is what prompted me to ask this in the first place. I just bought this car and don't know when the last time routine maint had been done, so was just going through everything and saw something about cleaning it every 5K miles and 1K on dusty roads.


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When you called the air cleaner an "oil bath" I think it got the Doggie following a different rabbit. jack39rdstr is correct. The air cleaner is flushed out, then fresh oil added to the mesh and the excess oil is allowed to drain before installing.


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Quote
....how to clean the oil bath filter for the carb air......

Everything I can find online references filters that set horizontally, and usually have a FILL line on the oil bowl. Since the stovebolt (mine is a 1931), has the filter mounted vertically, I am puzzled by the oiling of it - how much do you use? - So that it doesn't drip out the bottom when mounted?


Yes, jack39rdstr is correct, but KMusgrave asked about an "oil bath" type of air cleaner, which is a totally different animal than the type of "dust" filter air cleaner that was used in 1931.

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Ok, now that we got the correct terminology.... Can anyone address the questions?

How much do you use? - So that it doesn't drip out the bottom when mounted? How do you get it spread evenly on the wire mesh? Is it normal that it would drip out the bottom after mounting? What is the process or the method to oil it properly?


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As mentioned above, you dip the air cleaner in oil and then allow it to drain. Once the oil has drained out of the air cleaner then you can install it on the carburetor. Just dip the air cleaner in the oil enough to coat the entire wire mesh.

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After oiling I set my air cleaner in a sunny spot to drain.


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Ok, dipping makes more sense than pouring it over it. Thanks everyone! Happy Motoring!


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