Are Stihl Flippy Caps Supposed to Squeak and Leak?

[cookies]

These work well on stihl screw in fuel caps on my 034/036
https://www.walmart.com/ip/Rotary-1503-Gasket-Bowl-For-B-S/400448634

 

[ballisticdoughnut]

0000 350 0563 is the large flippy cap we sell at work. Will fit all Stihl power equipment that use the large cap. Couldn’t find any info on o-ring material.

 

[capejwc]

Are those the silicone jobbies, or just nitrile rubber?

Nitrile

 

[WI_Hedgehog]

0000 350 0563 is the large flippy cap we sell at work. Will fit all Stihl power equipment that use the large cap. Couldn’t find any info on o-ring material.

With it sitting on the glass like that it appears to fit a 6" filler hole.

 

[ballisticdoughnut]

Nitrile

yes I’d say it’s most likely NBR. Possibly Viton but I haven’t found any documentation to confirm. NBR is probably the most common o-ring material for general use.

 

[chipper1]

I have a love/hate relationship with them

Mines much more on the hate side. I've had them not lock multiple times and got the oil bath of shame down my leg; sure it's operator error, but if the engineers at stihl used KISS like husky, that wouldn't be a problem. I love husky flippies...

I keep them and the filler openening clean

How, with the catch a chip lip and all the crevasses around the oil fill . On my little ms201 rear handle, I'm going to cut that stupid lip right off next time I have a min and I think about it, unless someone can come up with a great reason I shouldn't.
Why is that lip there, to get broke off, to keep the string that hold the flippy out of all the chips, that it created . If the case was smooth a quick wipe with your finger and it would be clean, and none of the chips around the oil cap would fall into the tank.
I'll keep going if someone would like .

 

[chipper1]

0000 350 0563 is the large flippy cap we sell at work. Will fit all Stihl power equipment that use the large cap. Couldn’t find any info on o-ring material.
View attachment 1213159

Got the candy corn out for the trick or treaters I see .

 

[StihlPotlicker]

0000 350 0563 is the large flippy cap we sell at work. Will fit all Stihl power equipment that use the large cap. Couldn’t find any info on o-ring material.
View attachment 1213159

I need a new one for my 460, as it broke

 

[ballisticdoughnut]

Got the candy corn out for the trick or treaters I see .

We keep it out year round. We’re weird like that.

 

[WI_Hedgehog]

How, with the catch a chip lip and all the crevasses around the oil fill . On my little ms201 rear handle, I'm going to cut that stupid lip right off next time I have a min and I think about it, unless someone can come up with a great reason I shouldn't.

When a roll of paper towel is running low with about 60 half-sheets remaining I toss it in the woods box (which holds tools, spare parts, spare chains, etc). Before opening the cap I use a brush to clean off the areas around oil and gas fillers, then pull out a piece of paper towel and wipe the areas, then open a cap and wipe the inside of the cap and filler neck if needed. I fill the oil first (because the saw won't run without gas...), make sure the oil cap and neck is clean and close 'er up, then repeat for the gas.

Then I pin the paper towel under a stick so when I start the saw I can check the spray off the tip and make sure it's still oiling.

Is that a lot of effort...? It's not horrible, and I understand a lot of people won't do that--people who might just wind up with plugged oiler passages in my opinion. I put a lot of work into my saws and a plugged oiler passage would undo that in a hurry; for me--I like to enjoy my work, so for me it's worth the extra effort.