Gas Tank Cap-P15 and similar

[Sam Buchanan]

While pulling out the P15 for an afternoon drive today I discovered that a few days ago an absent-minded old man had driven away from a gas pump with the gas cap sitting on the rear bumper. The poor idiot proceeded to blissfully enjoy an extended drive and in the process launched the gas cap into places unknown. What an idiot....

 

In case anyone needs a gas cap, a Gates 31620 is a perfect fit, it is chrome and vented. I found one at my local family-owned auto parts emporium but this part number will return some hits from online vendors.

 

Note to self.......hold the gas cap in left hand while refueling, don't put it down anywhere.

 

 

[Sniper]

Modern "vented" caps don't vent so well.  Ran into that issue when I first bought by 51, I could hear the gas thank oil canning. 

 

Some drill a small hole in the lip of the fill tube, I modded my cap.

 

 

 

[Sam Buchanan]

I had already drilled a small hole in the filler neck while troubleshooting fuel issues when I was returning the car to driver status. However, the Gates 31620 cap is a legacy cap that includes applications for 60-70's Ford trucks so the venting is probably fine. I gave it the informal suck-n-blow test (no comments, please) and it seemed to vent readily.

[Roofus]

I am looking for a plug of this kind but who locked, would someone have a research track?

[Sam Buchanan]

23 hours ago, Roofus said:

I am looking for a plug of this kind but who locked, would someone have a research track?

I don't have a specific part number but here is the Gates catalog page for their locking caps. Take measurements of your filler neck and see if you can match a cap.

 

https://www.gates.com/us/en/search.p.7410-000000-000011.html