can someone post a picture of a correct gas cap. And where would I go about in purchasing one?
(http://www.saacforum.com/gallery/8-030522141228.jpeg)
Not the best photo, but here is the vented version
That is a BIG S on the head of the center rivet if your wondering ;)
Dont buy the one in a GM box, its smaller diameter. Ask me how I know. 😉
Quote from: Coralsnake on May 03, 2022, 07:04:32 PM
Dont buy the one in a GM box, its smaller diameter. Ask me how I know. 😉
Or the Ford one with a 70 D0 part number because it is for the smaller diameter CA emissions filler neck.
https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY (https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY)
Quote from: Royce Peterson on May 03, 2022, 10:30:44 PM
https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY (https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY)
Any idea if there is a difference between a Stant G40 and a G-40A?
Quote from: shelbymann1970 on May 04, 2022, 07:51:42 AM
Quote from: Royce Peterson on May 03, 2022, 10:30:44 PM
https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY (https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY)
Any idea if there is a difference between a Stant G40 and a G-40A?
There is a difference, and there is also a difference in the various generations of G40A cap that are for sale. The one I posted a link to is the least expensive one on eBay that fits your car. Others might fit but won't look right because they are an earlier or later style.
Quote from: Royce Peterson on May 04, 2022, 09:16:23 AM
Quote from: shelbymann1970 on May 04, 2022, 07:51:42 AM
Quote from: Royce Peterson on May 03, 2022, 10:30:44 PM
https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY (https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY)
Any idea if there is a difference between a Stant G40 and a G-40A?
There is a difference, and there is also a difference in the various generations of G40A cap that are for sale. The one I posted a link to is the least expensive one on eBay that fits your car. Others might fit but won't look right because they are an earlier or later style.
Thanks Royce. The one you posted sold out(probably last night). I found other more expensive G-40A but also a G40 and couldn't tell the difference just looking at them. So I need to watch the difference even in a Stant G-40A box marked cap? here is the G-40 https://www.ebay.com/itm/161995216242?hash=item25b7aad572:g:NHoAAOSwG-1W0K82
Yes there are earlier and later versions, even versions that are sold today by Stant. If it's an G40A it will function and fit but there are visual differences in earlier or later ones that are too varied for anyone to describe. Most of us want to buy one that looks right too.
Quote from: shelbymann1970 on May 04, 2022, 10:22:59 AM
Quote from: Royce Peterson on May 04, 2022, 09:16:23 AM
Quote from: shelbymann1970 on May 04, 2022, 07:51:42 AM
Quote from: Royce Peterson on May 03, 2022, 10:30:44 PM
https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY (https://www.ebay.com/itm/265641574176?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=BY81E-tASVe&sssrc=2349624&ssuid=y_zI9x6NSxC&var=&widget_ver=artemis&media=COPY)
Any idea if there is a difference between a Stant G40 and a G-40A?
There is a difference, and there is also a difference in the various generations of G40A cap that are for sale. The one I posted a link to is the least expensive one on eBay that fits your car. Others might fit but won't look right because they are an earlier or later style.
Thanks Royce. The one you posted sold out(probably last night). I found other more expensive G-40A but also a G40 and couldn't tell the difference just looking at them. So I need to watch the difference even in a Stant G-40A box marked cap?
Thank you Royce.
FYI only the early versions can be modified the same way as per the factory GT500 vent recall to be non venting.
Quote from: Bob Gaines on May 04, 2022, 02:34:38 PM
FYI only the early versions can be modified the same way as per the factory GT500 vent recall to be non venting.
learn something new Bob, I didn't know they modified the GT500 caps. I just thought they went with a non vented cap. FWI I got the "G 40-A" on my car.
Quote from: shelbymann1970 on May 04, 2022, 05:21:38 PM
Quote from: Bob Gaines on May 04, 2022, 02:34:38 PM
FYI only the early versions can be modified the same way as per the factory GT500 vent recall to be non venting.
learn something new Bob, I didn't know they modified the GT500 caps. I just thought they went with a non vented cap. FWI I got the "G 40-A" on my car.
Yes It was probably easier to modify the stock cap then sourcing a non vented cap.The recall details cover the method.The non vented caps used back in the day are extremely hard to find today
send Special Ed a PM he might be able to help
The G40A has a check valve in it that lets air in the tank as fuel is depleted. It does not let fuel or fuel fumes out.
FWIW,
My old 1970 GT-500 had a non-vented cap. Yes, it was a California car.
Right, the California and Arizona cars had an evaporative emissions charcoal cannister that is the vent for the tank, so a different gas cap is used for those cars. It doesn't need a vent if the system is installed and working properly.
Quote from: crossboss on May 06, 2022, 04:49:08 PM
FWIW,
My old 1970 GT-500 had a non-vented cap. Yes, it was a California car.
Quote from: Royce Peterson on May 06, 2022, 06:24:46 PM
Right, the California and Arizona cars had an evaporative emissions charcoal cannister that is the vent for the tank, so a different gas cap is used for those cars. It doesn't need a vent if the system is installed and working properly.
Quote from: crossboss on May 06, 2022, 04:49:08 PM
FWIW,
My old 1970 GT-500 had a non-vented cap. Yes, it was a California car.
Those different non vented caps used on the evaporative emission equipped cars fit a special necked down filler tube which makes it necessary for the the cap to be much smaller then the typical stock cap.
Royce didnt know az had same fuel evap law as cali where did u get that info as didnt it say on invoice cali evap option or was it by dso?
Ed,
Arizona adopted the California emissions rules in about 1964 so anything California did they made the same. Arizona adopted Thermactor at the same time as California, etc. Probably because Phoenix and LA both had serious air pollution from car exhausts and fumes.
Also, wasn't there a re-call concerning the gas caps causing fires from the fumes and the center exhausts?
Quote from: crossboss on May 07, 2022, 11:45:56 AM
Also, wasn't there a re-call concerning the gas caps causing fires from the fumes and the center exhausts?
Yes and for cars that returned for that they got a non-vented cap and a vent added to the factory filler neck as shown in past threads on the subject
Quote from: J_Speegle on May 07, 2022, 01:34:18 PM
Quote from: crossboss on May 07, 2022, 11:45:56 AM
Also, wasn't there a re-call concerning the gas caps causing fires from the fumes and the center exhausts?
Yes and for cars that returned for that they got a non-vented cap and a vent added to the factory filler neck as shown in past threads on the subject
A slight addition in that besides the added tube vent the dealer ether replaced the stock cap with a non vented cap or made a revision to the stock cap that rendered it non venting as per factory recall instructions.