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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2002 Posts: 159 Shop Shark | | Shop Shark Joined: Sep 2002 Posts: 159 | I have an unusual question for all of you. Does anyone know what weight oil goes into the oil bath air cleaner for a single barrel rochester carb? also I was wondering has anyone ever opened up the oil bath air cleaner and modified it to hold a modern air filter. I thought this would make for less of a mess, and still look original. I had logged a question a while back about getting to much gas and not enough air into the carb, well it turned out I was using to heavy of a weight of motor oil in the breather. I switched to an after market filter, but would like to find a way to use the original parts. Thanks for any help you can supply. 
56 stepside 3/4 ton longbed
| | | | | Joined: Jan 1970 Posts: 365 Shop Shark | | Shop Shark Joined: Jan 1970 Posts: 365 | Prior to the 60's when John Deere used oil baths, they recommended using the same weight oil you were using in the engine. From what I have read this is also GM's recommendation.
With a little patience and time I would think you could modify a stock air cleaner to accept a paper filter--some vendors offer one for John Deere two cylinder restored tractors. | | | | | Joined: Sep 2000 Posts: 390 Shop Shark | | Shop Shark Joined: Sep 2000 Posts: 390 | An old mechanic told me to use 30 wt. thined with a little diesel.
1942 1\2 Ton 1951 1\2 Ton 55 willys cj-5 1954 and 59 Cushman Scooter 1960 Biscayne Sedan 1965 G/10 panel van 1966 C/30 Grizzly Motorhome You know you're a 'Bolter when your daily driver is older than you are... My progress pics | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | If you look in the Cars and Parts issue just coming out, that would be Nov 2002, the Toolbag column has quite a few descriptions of how people modified their oilbath aircleaners to take a paper element. | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | The 1954 truck owners manual says ". . S.A.E. 50 weight in summer and lighter in the winter".
Tim | | | | | Joined: Mar 2001 Posts: 384 Shop Shark | | Shop Shark Joined: Mar 2001 Posts: 384 | I'm in Texas, use 30w year round never a problem.
Buzz'n Half Dozen
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#6898 10/13/2002 11:25 PM | Joined: Oct 2002 Posts: 43 Junior Member | | Junior Member Joined: Oct 2002 Posts: 43 | I added a chrome paper element air breather from "mr.gasket" the filters are a stock part you can get anywhere. But the only reason i did it was because i channeled my truck 2.5" so the hood would not close with the stock oil bath on it. :mad: oh well u can't have everything i guess. | | | | | Joined: Aug 2002 Posts: 221 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Aug 2002 Posts: 221 | Back in the early 50's I worked after school in a service station where we did those old air cleaners on 37 etc. Chev's and Pontiacs, and some of those other makes like **** or Dudge.
We just put the same oil as the crankcase in those air cleaners and never saw a problem. Sure saw some pretty hard sludge in some of those air cleaners though. Good memories! I'll stay like that with my 46, 235 that is in a 2 ton.
George | | | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | If you drive over enough rough roads you never have sludge develop in your air cleaner, cuz the oil will get sucked down the carb!
Fred
52 3600
69 C-10
| | | | | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | WHo would have ever guessed that would happen Fred  Th eoil bath system works fine if it is s restored original or sitting on a show room floor :p
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
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