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10-18-2020, 06:44 PM | #1 |
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Join Date: Aug 2018
Location: Foley, Al
Posts: 142
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Gas cap mystery
I recently bought another Model A Fordor and found something strange about it's gas cap. When we took it for a test drive, it ran rough and he said it probably had older gas so we went to a gas station and added gas. He then started it and I adjusted the gav slightly and the car then ran fine.
After bringing it home, the first time I opened the gas cap I noticed two giant gaskets which I thought were odd. I removed the gaskets and took it for a drive and it ran absolutely terrible. When I got home I examined the gas cap and noticed someone had soldered the hole shut for some strange reason. (Item#1 in the attachment). It should look like picture#2 which is from my 28 truck. I think they were using those gaskets as a spacer so air could get in and not create a vacuum. Once I removed the gaskets the car was absolutely starved for gas and ran terrible. The fix is obvious, I just need a correct gas cap. So my question is why oh why would someone solder the hole shut on a gas cap. Seems weird to me.
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10-18-2020, 07:24 PM | #2 |
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Location: Fort Gratiot, Michigan
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Re: Gas cap mystery
or drill a hole in the old one !
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10-18-2020, 07:37 PM | #3 |
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Location: Boise, Idaho
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Re: Gas cap mystery
Maybe, the person that added the gaskets was not the same person who soldered it closed.
Could they have been using it for a radiator cap? You could use some solder wick and remove most of that solder and maybe re-use the cap.... My ccpu had a cap like your picture #3 when I brought it home. .
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Early '29 CCPU that had a 4-speed, but not any more.......in the family since '62 |
10-19-2020, 06:31 AM | #4 | |
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Location: Foley, Al
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Re: Gas cap mystery
Quote:
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Jim |
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10-19-2020, 08:19 AM | #5 | |
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Re: Gas cap mystery
Quote:
Perhaps some one had a tendency to overfill the tank to the absolute top, and the gas expanded out through the cap vent. Farmer fix instead of proper fill technique? |
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10-19-2020, 01:28 PM | #6 |
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Location: Scottsdale, Arizona
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Re: Gas cap mystery
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10-19-2020, 08:02 PM | #7 |
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Join Date: May 2010
Location: Auburn Washington
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Re: Gas cap mystery
the only gas cap you are showing is #2 number 3 looks like one of the cheap reproduction with the vent hole in the middle of the top. if you fill your tank to full with one of them they will leak. the only difference on the 28-29 gas cap is vented and radiator cap is not.
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10-19-2020, 08:22 PM | #8 |
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Join Date: Apr 2015
Location: Boise, Idaho
Posts: 1,578
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Re: Gas cap mystery
I just looked at a picture of mine and it is different...no center hole...???
Guess I'll get the Judging Standards out and take a look... .
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Early '29 CCPU that had a 4-speed, but not any more.......in the family since '62 |
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