Safety Fuel Cap Explained

[T-Mo]

From youtuber Farmall Fanatic.

https://www.youtube.com/watch?v=pxrKfgmt-z4

[Jim Becker]

Pretty good video. One small problem, his replacement cap on his M is not one of the newer safety caps. It is one of the older tall caps that has been recalled along with the short caps.

The recall is being handled by Navistar, not Case-IH.

[T-Mo]

Jim,
I was thinking it wasn't Case-IH, but he put in a link in his description, so I'm sure viewers should be able to order one if they need a cap.

I wonder what the problem was with the older tall caps that they were recalled also?

[Jim Becker]

I think the important change was the addition of the second pair of lugs on the bottom of the cap. When you turn the cap enough to release any pressure that might be there, the added lugs keep the cap from blowing off. You have to keep turning the cap before it completely disengages. If you looked at the bottom of his tall cap, you would have seen a bottom with lugs identical to the short caps.

[Barnyard]

I have seen some of his videos. I sometimes think he and Rachel Gingell get their info from the same source.

[Super A]

I have seen some of his videos. I sometimes think he and Rachel Gingell get their info from the same source.

Haven't watched any but I sort of guessed that.
Seems like about every spring there's a round of "your old flat gas cap is a death trap" videos and posts on social media.....

Al

[T-Mo]

Even though I give some credit to Rachel (and to Farmall Fanatic) for their commitment and passion for this area, I also believe if you make how-to videos, you should have the best practices involved. There are those, and possibly me included, who take these as the gospel not knowing there is a better and more practical way.

I also can see where bad habits and practices that are passed down from previous generations. "This is the way my dad did it", or "the way my grandpa did it". Experience is a virtue, but from experience short cuts and bad habits may occur.

[Barnyard]

I think the important change was the addition of the second pair of lugs on the bottom of the cap. When you turn the cap enough to release any pressure that might be there, the added lugs keep the cap from blowing off. You have to keep turning the cap before it completely disengages. If you looked at the bottom of his tall cap, you would have seen a bottom with lugs identical to the short caps.

On the new tall cap you can easily see the second set of lugs Jim describes as compared to the single set of lugs on the old tall cap.