domed AC fuel filters, help with application C1
Just noticed the 2 filter lids have different letters/numbers around the perimeter. One has PAT. 2159196 or PATS. PEND, whereas the other lid does not have this at all. What years are each of these for? Both have the 10 knobs on the nut. Thanks for help.
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Re: domed AC fuel filters, help with application C1
Patent numbers were eliminated in 55. So that filter would be correct for 55, 56 and 57. I think the lid changed in 58.
53 and 54 had the patent numbers. This info is now in the recently updated 53-55 Technical Information Manual and Judging Guide.
If you look closely at the underside of the lid you should find a two number date code which would tell you which year it was cast. -
Re: domed AC fuel filters, help with application C1
Hello all. I have a handful of the high dome AC fuel filter. I too was also interested in the top markings on these filters. I thought this maybe interesting. I inspected ,very carefully, the marking of the "53"s and here are my results: One had the PAT. PEND. on the one side and AC SPARK PLUG DIV on the opposite side. Here is the kicker.. no PAT. PEND. on the one side and the other side was embossed with AC SPARK PLUG DIV. I am sure there are exceptions on all these old parts. Please take this information for want it is.Comment
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Re: domed AC fuel filters, help with application C1
I don't believe you would see the "made in USA" on an original 1950's production part.Bill Clupper #618Comment
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Re: domed AC fuel filters, help with application C1
Hello Bill, would that include 1956's and 1957's? I have one of each.Comment
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Re: domed AC fuel filters, help with application C1
I would not expect to see the "made in usa" until well past the late 1950's, but I have not studied the issue.Bill Clupper #618Comment
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Re: domed AC fuel filters, help with application C1
Yikes! Never heard such a thing.
Your comment sent me to the shop to examine 6 such filters. All have 53-56 casting dates and everyone has "Made in USA" on the outlet side. I've never seen one without it.Comment
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Re: domed AC fuel filters, help with application C1
My bad perhaps, I was referencing some here that were not domed. Be interesting to see the date on the one pictured without the "made in USA" logo. Lots of cars in the '50's used the same filter, and I'm sure AC had more than one mold, so when the mold was built might have a bearing on the with/without logo. Prior to the passage of MVSS in 1966, the entire Automotive Parts world was a LOT different.Bill Clupper #618Comment
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Re: domed AC fuel filters, help with application C1
I believe, under close examination, the one in the photo that does not have Made in USA shows that it did have that at one time but it has been gouged off. You can see remnants of the lettering.Comment
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Re: domed AC fuel filters, help with application C1
sense were talking about fuel filters I was wondering how do you spot a gf 48 fuel filter what are the differences?Comment
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Re: domed AC fuel filters, help with application C1
Hello folks, my intentions are not to beat this thread to death. . I am very interested in this subject and would like to share my findings. I have three " 57" high dome large AC lettered fuel fifters. Hear are my observations: Holding the AC logo towards you, at the one to three o'clock position is PLUG DIV. , at the three to six o,clock position is AC SPARK. At the six o'clock to nine O,clock position is MADE IN USA. The inlet and outlet are marked as stated. The part no. molded in the interior is 854287. Also, I have a GP48 box dated 461-10 and the cap inside is "61". The box reflects part no. 854444. I hope all this helps. THANKSComment
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Re: domed AC fuel filters, help with application C1
Jerry, if you look closely at the photos John provided it appears to me that the patent info one the filter on the right has been ground off. I have two lids date coded 53 that also have the info ground off. One is NOS. Don't know why that was done. Is the 53 you have the same?
I also have a 53 date coded lid with the patent info still intact.Comment
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