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I don’t know where to get a tank or what size your storage compartment is, as I have propane. However, there are CNG “gas stations” here in San Diego and many of the city buses run on it.

Ken, are you saying he could NOT just replace the whole “shooting match” with the kit sold by CD for $90?

Can't get to the CD site - so didn't know what you were referring to but originally thought it was the foam prefilter since that's all Pete seems to be missing for a functional unit.

I suppose he could replace his shebang but why, for the sake of a couple dollar foam prefilter?
IIWMB and I was prone to spending boat bucks I'd go with the KN but I don't know how the noise is on that vs the foam silencer.

Dan,

Like you I'm still using my original CNG stove, it's safe and reliable and puts zero load on your batteries. When something works don't fix it.

If your still using the CNG stove where are you getting tanks filled. When I bought the boat I assumed that it was a propane stove. I have never heard of CNG, not to mention that the tank was missing and I cant even find a tank if I tried to maintain the stove as a CNG

Thanks. I was able to get the first one ordered to Napa. Arrives Monday, so I’ll be hanging out till then. The current one looks pretty old so was probably on last leg. Just crossed the Gulf from Destin to Tampa without issue. Anchored outside Gulfport Marina for now.

MQ

Have you checked the screen in the bottom of the pump? possibly it's blocked. 

Guys : Just remember that the fuel tank on the C34 is higher than the engine and the fuel will syphon down to the engine!!!

A thought

Ken, are you saying he could NOT just replace the whole “shooting match” with the kit sold by CD for $90?

Guys,

Understand that Pete retrofitting the assembly with the VW filter cartridge LIKELY (not absolutely) means that both the diameter and height are different than the coffee-can type that assembly takes the stock foam silencer that Stu and Noah speak of.  That is why I said “fitzTheODofTheVWfilter,” instead of “fitzThestockUniversalAssembly,” (ie, what CD and Wb sells.)

I like too ended up getting a suitable foam prefilters from a bid box and good small engine dealers - it's just a matter of taking it in as Ed said and sizing it up.  NAPA seems to have a good line of small engine stuff, tho I'm not sure how much is normally stocked in stores.

Or from a hardware store/Home Depot/Lowe’s that sells lawnmower tune up products, most likely cheaper than CD
Regards,
Ed

Or you could “overspend” and get it here: It depends what your time is worth (to you) and your pain threshold.
https://www.catalinadirect.com/shop-by-boat/catalina-28/engine/maintenance/engine-air-filterreplacement-foam-element/?SearchResults=1

In essence you don’t need the “horn” -  put a foam silencer wrap on it that fits the ID OD of your VW filter and you’re good to go.  If you cant find one its easy to make it.  I believe that Ron or someone had described how somewhere on the forum.

The horn/snout disappeared somewhere in 1986.  The earlier '86 boats with M25 engines had the horns, mine didn't. 

But there are OLD style vs. NEW style round "filters" 'cuz when I went into my Universal dealer that's how he had his parts book marked up.    Old style was circular but with the guts like in the last photo in the post above.  New style has the bigger metal guts that go all the way to the edge of the holder with the perforated enclosure, then foam around that.

This has the model #  of the foam filter replacement:
Engine Air Filter Replacement Sponge  http://c34.org/bbs/index.php/topic,7370.msg50214.html#msg50214

Ron's solution was to buy the foam, trim to size and stitch the ends together.