Merc KD-3 fuel filter?

[Goman]

I removed the petcock but I’m not sure if this is a removable fuel filter or something else. It doesn’t seem like it was part of the petcock. I was going to put sealer in the tank for a small leak. I didn’t want to muscle it too much until I checked with you guys.
I really don’t want to take the tank apart but I will if I have to.
Thanks all
Glen

[mercuryspecialist]

I do believe that that is the fuel filter element. If you should like to view a picture of an element (by itself), please send me a private message with your e-mail address so that I can send you a link, and please post that you have so that I will be sure to login here.

Regards,
Joe

[fifty20ne]

Looks like the screen portion (Filter Element) of the fuel shut off valve is still in tank.

Fuel – Shut off valve with screen Part # 20

[dave-bernard]

no need to take the tank apart. tap it in then shake it out of the filler hole do with care.

[green-thumbs]

Having split and resealed 6 or 8 of the postwar cast aluminum tanks (Mercury and Wizard)
a) it is about a 2 on a 0 to 10 scale of difficulty
b) no special tools, material or technique required
c) material used is widely available and inexpensive
d) results in long lasting repair at low cost
e)about the same method as used at factory and most of them do not leak even after
nearly 70 years
imho pour & slosh seal material is appropriate to seal rust pin holed steel tanks where entire
interior has to be covered.

Prewar cast aluminum tanks for singles were a less developed design with less material at
critical points and fewer fasteners to draw tank halves together. I have one to work on that
will need to have mating surfaces worked on…a time consuming job with less margin for
error.

I recognize the end of the filter as being the cylinder with a jillion little pieces. It has either
broken off or unwound from the petcock as it was removed. It may be suitable for reuse if it unwound. It should be possible to gently push filter into tank and remove via filler hole.
Good Luck
Louis

[Goman]

I pushed it on through as suggested Thanks. There’s about a 1/2 space behind the threads on the tank where it seems to wedge in. It should go back the same way and stay tight especially when I put the tank sealer in. It’s hard to tell if the filter was ever attached to the petcock.
Thanks again
Glen

[dave-bernard]

In the petcock there should be a bar that it screws in to. Assemble the filter to the petcock before installing into the tank. as for the sealer DON’T do it with the filter and petcock installed.

[ERROL STILLINGS]

Louis Doering is the right guy to follow. If you need to take the tank apart, louis has the real deal in resealing – AND including a fuel filter.

[Author]

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