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UltraMarine Muffler Leaks
I posted this on the Moomba forum too but thought you guys over here might have more experience with the DD's since Supra has had them for years :)
During winterization this year I noticed my silencers were leaking. I didn't notice really any water in the bilge during the season or an abnormal amount of fumes either?
I haven't taken the UltraMarine Silencers off yet but looking at them they are BOTH leaking on the engine side of the silencers where they diameter of the muffler widens. Looks like they are both cracked and flaking off there. How long should they last? Seems to me that 3 or 4 seasons is a little premature for failure?
Should I use OEM replacements or is there something better out there?
And is there any way to drain the muffler/silencers in a DD for the winter?
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Scratch that - Change of Plans
Well,
When removing the Ultra Marine Silencers I had one come apart. Looks to be a defective set of mufflers if you ask me! Whatever sealed them has given way and the Inlet Side just slid out from the baffle. No cracks or issues there as previously thought.
Should be a fairly easy fix with a little 5200 epoxy around the tube and slide it back together. Don't have to worry about trying my hand a glasswork just yet. But I'm certainly going to talk to Ultra Marine about it.
Thought I'd post up some photos for anybody interested in what the inside looks like. Really just a 90degree downtube and then a 90up and out. The rest is all hollow. Maybe you all knew that but I didn't!
2 side notes:
1.) there would be absolutely no way to get all the water out of them without having them apart
2.) thinking about cutting off the 90 angle on the inlet side while I have them apart. I think it will let that Assault 325 breath a little more and a little louder but not too much as straight pipe. I want to still hear myself think. Thoughts?