Pressure tank screw gasket?

[jimk]

Is there a gasket for the screws that anyone has come up with that doesn’t cost over $4.00? I am thinking of digging threw my old carb kits and trying some of the red drain gaskets.

[aquasonic]

These 1/4″ ID fiber washers are priced like gold nowadays. Substitutes are difficult to find. Rebuild kits online usually substitute washers made out of cork sheeting. If you have a punch set, they can be made. If memory serves, some make them out of acetal.

Home Depot carries 1/4″ ID x 3/8″ OD fiber washers in packs of two for $1.15. These are only about 1/32″ thick whereas the originals are closer to 1/16″ thick. The solution is to use 2 washers per screw. This has worked for me. Total cost is under $10.00. Hope this helps.

https://www.homedepot.com/p/1-4-in-x-0-032-in-Black-Fiber-Washer-2-Piece-807908/204276417

• This reply was modified 3 years, 4 months ago by aquasonic.

[dave-bernard]

I have used O-rings and worked fine

[frankr]

Part # 95601A310 $3.38 pkg of 100
https://www.mcmaster.com/fiber-washers/material~hard-fiber/

[jimk]

Thanks! That looks to be a bit more reasonable. Do you use any gasket sealer on them or the cork gasket under the filler plate? Winter project is to redo a couple of my old tanks. One i Used the kit from ebay with the cork gaskets for the screws and that was a fail so going to try again. I didnt use and kind of gasket sealer so thought maybe that was the problem.

[frankr]

I am thinking they should be 1/2″ O.D. (95601A315), but could be wrong. I use sealer on the tank top gasket, not needed on the washers.

[drifter]

I have made my own for years from plastic coffee can lids. Never had a problem.

[jimk]

Lots of options! Thanks and I will try a bit of permatex aviation cement on the tank gaskets and one of the options you have given me for the screw gaskets.

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