69'442

Anyone have a picture of an original 70 gas cap for a 442? Thanks

Al Graaf

Is the cap for a 71 the same? Allan would know(Daffy Duck) Fusick has them.

Allan R

The 70 cap is not the same as 71/72. The 1970 models didn't have a vented cap. 71/72 also had a double lock on the cap in addition to the vent. I have a NOS 71/72 cap, but the pic wouldn't be what you want.

Are you looking for something like this?

Al Graaf

I knew you'd have the answer! And pictures too!

rcorrigan5

I'm attaching a picture of the original gas cap on my '68 4-4-2. The one on my '69 4-4-2 is identical, including those letters "F" and "E" by the rivets. Is it possible that the '70 gas cap is the same?

Randy C.

stevengerard

No, 70 looks different than either of those, I'll try to take a pic of mine. I know they also sell 70 repos that look exactly like the one on my 70 so one of the dealers would probably have a pic in their catalog

Allan R

Steven, I'd like to know if yours is vented. All the repro catalogues I've seen show them as vented. I was sure they weren't. Is this what yours looks like?

W70442

Pretty sure this is the only cap that is correct for the 70 442. It is actually pictured in the 1970 chassis service manual. I have and NOS one available. Not sure if the one I currently have available is the one in the pic as I have had several over the past few years.
By the way, I'm not sure that box pictured has the correct number on it. I think the correct number is 405373.I can verify the number if anyone cares.
ebayparts008.jpg

tomsw31

Randy,
I have the same one as you have and also cross referenced it with the part number 405373. It is NOS as well. The one Alan pictures is the one commonly thought to be correct and sold as a reproduction. I am wondering if both versions were used?

Allan R

Tom, I saw that in the parts catalogue too. 70 exc SW, VC or E.E.S. a whopping .87! And it's listed in the catalogue as non vented, as I thought it was to start with. I did not find the one Randy posted, and I was using the early catalogue from 72.

tomsw31

Allan, My parts catalogue is dated Dec 1972 and is the Canadian version. I do not see the part number from the box Randy posted in there. I was told that the rivet should have an "S" on it? My unrestored 1970 W30 has a third version from the two posted above, but I cannot verify that it left the factory that way, as I am not the original owner and gas caps are easily lost and replaced over the years.

Allan R

Tom, yes I've seen the style you've mentioned where the rivet has an S on it. I thought it looked a lot like a $ tho. I know that caps can easily be changed, but it's one of those things on a car that rarely if ever is replaced (unless you forgot it at a filling station).

Were the caps you're thinking about like these? I don't see any markings about releasing pressure slowly....



This is GM 3850591

BTW, after some looking it turns out the vented caps were used on the SW and VC.

69'442

Thanks everyone. So it should be a non vented type? Round with S or octagon shaped? I am still confused.

stevengerard

I'll try to check today but mine does have an "S" on the rivet - I do remember that.

W70442

They say "seeing is believing". I mentioned above that there was a pic of it in the chassis manual. Oddly enough, they actually printed this same illustration in two different places just 10 pages apart. 8-3 and 8-13.
Have a look.
I've always heard that the "S" stood for Stant, the company that made the cap. However, even though the book illustration shows an "S" stamped in the center, the NOS cap I have here does NOT have anything stamped on it. I believe that it is possibly due to the art in the book being incorrect or outdated or that there was more than company that made this style cap over the years.
gascaps002.jpg

wmachine

Always keep in mind that NOS does *not* mean that part is the same as what was on the car when new. NOS means nothing more than it was determined to be a correct replacement part. Often they are not the same, especially with something as relatively insignificant as a gas cap.

W70442

By the way, in case anyone was interested, here's the pic of the 71 / 72 gas cap. The 71 and 72 chassis manuals have the same pic.

I didn't see any pics in the 68 or 69 chassis manuals.

gascaps003.jpg

Octania

Randy, you may wish to run some Evapo-Rust over that thing.

Allan R

Non vented. But, if it's not for a show car, I don't think it will really matter what 'shape' you pick - as long as it does the job.

Have a look at this auction on fleabay. It looks exactly like the cap that Randy was showing in the CSM. Don't worry that it says Poncho application - I'm sure its right for your 442 also.
http://www.ebay.ca/itm/1970-Pontiac-...#ht_500wt_1040

69'442

Thanks, that does look just like the one Randy shows. The one on my car now is loose and not right. If I have to get one anyway I always like to get as original as possible.

Allan R

Suweeet or what? I just looked - that gas cap is in... LONG ISLAND. Coincidence or what??? You can prolly go just pick it up!

stevengerard

Mine looks exactly like the one Allan posted except my handle looks upside down

Allan R

Prolly an assembly line error? Or does it even matter which way the handles are?

GAOldsman

Cool thread. Now the judges @ the Nats is gonna deduct points for the wrong gas cap Batten down your fuel filler hinges mates

Allan R

Scot, I bet they would. It could come down to something that small. They'll never take me alive - I bought an NOS cap for my 72. I should get extra points for that?? It will go with my new gas tank and straps very nicely.

Highwayman

Back when I was doing shows with my ElCamino, I remember a Super Chevy show where it was down to the wire on a couple of cars and the judges finally found a small paint run inside a door jam of one of them. So yeah, a gas cap could be a big deal if you're doing show cars.

stevengerard

Doesn't matter works the same. I bet they didn't pay attention

ROCKET VAPOR

The "S" is the Stant Manufacturing Inc. logo, a GM OEM.

69'442

That's what started my search. I was at a show and a guy asked to look at my gas cap. He then said it was the wrong cap and it was too loose. Being the original nut I am, I had to find out and get the right one. Last show I was at it came down to burnt paint on the intake and not a repro antique battery.

Allan R

So have you made a decision about what you're going to buy?

69'442

I bought the one on fleebay. It did not have the S on it. Other than that it looks the same as the one in the manual. Thanks, Bob

ROCKET VAPOR

If you bought the NOS cap from the ebay auction that Allan posted, it will be just like the one Randy posted photos of, "SMC" logo will be stamped into the handle tab.

I have never seen a original 69-70 non-vented style gas cap with a large "S" in the center of the cap like was shown in the service manual.

69'442

Cool, Thanks