Mile Master Pressure Tank gasket

[Buccaneer]

I put a gasket repair kit in my Mile Master pressure tank 1-1/2 years
ago. I believe I put gasket sealant on both sides of the cork gasket
just for "good luck".
Yesterday’s boat ride reminded me that the gasket "weeps" just
enough to be mildly disgusted 😮
I’ve tried gently snugging up the screws, but it never seems to stop
the leaking.
Anyone ever have a pressure tank that doesn’t weep?
If so, What’s your secret tip?

Prepare to be boarded!

[fisherman6]

My tank I rebuilt last year weeps a bit, and the ones I haven’t done anything to mostly weep a little bit too. I’d also be interested in the secret to making that not happen if someone has it and is willing to share.
-Ben

OldJohnnyRude on YouTube

[melugin]

I coat the cork gaskets with gas tank sealer. I have also had good luck using Gortex gasket material. It comes in a strip which will circle the opening instead of using a permeable type gasket.

[Doug Wilson]

I used Mercury gasket sealer on mine 4 or 5 years ago, and also on fiber washers on all the screws. So far have not had the first sign of
a leak. I have a couple of spare tanks that are about to get done the same way before I sell them.
Doug

Doug

how is it motors multiply when the garage lights get
turned off?

[frankr]

I always used OMC gaskset sealer on both side of mine. I guess that is the same as Merc sealer, right? Anyhoo, I feel there are too many leakage paths around and through the cork pieces without something.

[Steve A W]

No problem.
My fishing budget doesn’t allow me to fill the tank all the way. 😆

Steve A W

Member of the MOB chapter.
I live in Northwest Indiana

[chris-p]

Step 1: Ensure the mating surfaces are square and no debris. I use gasket remover on both sides, then clean with acetone. I dress the handle on a machinist block with wet/dry on it to clean up metal and ensure it is true. Sounds straight forward right, but seen many guys installing new gaskets with chunks of the old one and residue still existing!
Step 2: Use a good sealer. Will some seal without? Perhaps. But use it anyways. OMC Gasket Sealing Compound usually does the trick, or as Frank stated, the Mercury equivalent.
Step 3: Use a new gasket. Obvious right, but thought I should probably add that.
Step 4: I use Gasket sealing compound on the bolt threads as well before installing bolts with new washers.
Step 5: Torque the bolts. Don’t guess. Tighten as you would a head gasket, in a circular fashion, starting in the center 2.

Should not have any leaks following these steps.

[Buccaneer]

Chris, thanks for the tips. I know I had everything nice and clean with a
new gasket, but don’t believe I planed down the handle body.
I think I used some gooey Permatex aviation sealant which seems
to be good stuff. Will try again when I won’t be needing that
tank for a while. Thanks!

Prepare to be boarded!

[chris-p]

To be honest, you rarely need to do that, but it is just habit I suppose. I dress every gasket surface when I rebuild something. Just quick figure 8s to ensure it is straight. Also gives you fresh clean metal to adhere to.

[elgin2]

I`m glad to hear that weeping is not uncommon. I was about to reseal one for that reason.

[Author]

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