hevansrv7a
Well Known Member
Today I found out more about the standard gas cap than I wanted to know. I'm probably the only one who didn't know, but just in case:
1. The big nylock nut on the bottom is just a lock nut; the thing that adjusts the preload on the big brown O ring is the bottom disk and you have to loosen the locknut first. Then turn it clockwise to tighten.
2. If you try to adjust the O ring preload by turning the nylock nut clockwise you stand a good chance of breaking the roll pin. Guess how I know. Besides, it just locks the two pieces together and does not adjust anything.
3. The roll pin, once broken, can be driven out easily with a 1/16" drill bit shank. In a pinch, the same shank can be used to substitute for the roll pin. I don't recommend this as a permanent fix because I think it reverses the hard-soft design and thus the wrong thing would wear out first. The drill bit shank can be used because the design of the cap captures it even though unlike the roll pin it is not tight in the holes. My replacement parts are on order.
4. There is a replaceable small O ring around the stem under the little square metal plate visible where the flipper rubs. That could leak around the stem.
1. The big nylock nut on the bottom is just a lock nut; the thing that adjusts the preload on the big brown O ring is the bottom disk and you have to loosen the locknut first. Then turn it clockwise to tighten.
2. If you try to adjust the O ring preload by turning the nylock nut clockwise you stand a good chance of breaking the roll pin. Guess how I know. Besides, it just locks the two pieces together and does not adjust anything.
3. The roll pin, once broken, can be driven out easily with a 1/16" drill bit shank. In a pinch, the same shank can be used to substitute for the roll pin. I don't recommend this as a permanent fix because I think it reverses the hard-soft design and thus the wrong thing would wear out first. The drill bit shank can be used because the design of the cap captures it even though unlike the roll pin it is not tight in the holes. My replacement parts are on order.
4. There is a replaceable small O ring around the stem under the little square metal plate visible where the flipper rubs. That could leak around the stem.