Part of an illustration set from ABYC H-24, badly modified by me, showing how quite a few C-Dorys had their vents routed (presumably because someone thought higher was better). What happens instead is that this makes a big "fun slide" down into the tank for water. (I corrected this, while still using the original hole location, with Attwood self venting fuel vent fittings - see details in "Sunbeam ~ 22 Cruiser" thread.)
- Sunbeam
- Apr 16, 2016
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Same photo but closer view of cleats. Moeller (and I would think other plastic tank mfgrs), specify 3% all around space to allow for tank expansion (not because of heat but because the material absorbs petroleum, from what I gather). The cleats holding these tanks in were butted right up to the tanks, with no expansion space at all, from what I can tell. When the tanks expanded, they pressed on the cover panel - and to some extent the cleat - and "levered" the cleats up out of the sole (they were made of starboard screwed directly into the sole/core). I'm hoping to avoid these issues with the new tanks by installing them differently.
- Sunbeam
- Jun 30, 2013
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This photo shows the original fuel tank installation on a 2002 22 Cruiser. These are 25-gallon tanks (not Moeller brand). As you can see, they come forward slightly past the splashwell, thus the cover panels only run up about 7/8 height. Somewhat interestingly (in a leverage sense), the straps that run over the tanks run from the top of the cover panel over the tank and down to the sole behind the tank at the transom. With my new tanks I'm switching this around, so the strap runs from the bottom/sole at the forward side of the tank to the transom near the top of the tank. Thus the cover panel will not be involved (also the newer, 23-gallon tanks will tuck "behind" the splashwell and allow for full height covers). See more about installation in next photo.
- Sunbeam
- Jun 30, 2013
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Here you can see how it will fit on the inside. This black plastic bowl is just a spacer; it doesn't actually comprise the seal. There are three optional spacers that come with the vent - this is the largest one. I can't tell yet whether I'll want to use this one or the next smaller one, but I wanted to make sure this one would fit. It's close with the steering cable, but it does fit. The P-trap part goes inboard of this.
- Sunbeam
- Jan 20, 2013
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As it turns out, there is apparently now a newer red gasket. So there was old red one, newer green one, and newest red one. But Parker cannot point to a date for the change(s) or describe how to tell the difference other than comparing them in person (seems weird). Also, they changed the information they gave me on the date, which I corrected here. Added later: They sent me one of each - see photos on ahead a few.
- Sunbeam
- Jan 18, 2013
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