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Thank you all for your replys. I had the aqualift muffler replaced this season and all hoses changed to 3/4" trident water hose, no steel insert. The vetus filter looks good but the idea of pouring water into it and then anti freeze looks very tiring, so looks like I will continue to remove the hose and put in winterizing hose into bucket of fresh water followed by anti freeze.  I have to say the engine is running like a top and pumping out water, 160* constant.

Jeff

Sedona Sunset,#219 1986 with M25, came with and still has a basic in line Jabsco $30- raw water intake filter. Always works stopping seaweed or what ever before doing damage. The only draw back is that the hose has to be removed from the filter to winterize, as I put a hose in bucket to draw in fresh water and flush engine before adding antifreeze.  I was told that there is an intake filter that can be used to winterize with out having to remove any hoses. Does any one use this type of filter and if so, what is the name of it and where can it be bought.  All suggestions greatly appreciated.

Jeff

Eric,

I also have an '86 and last fall I put out that the mechanic stated time for a new muffler.  I just had the job done, with new heat riser, all new hoses. Catalina Direct has the replacement. I got the new style, round, much larger than original.  I was told that when I start the engine in a month or so, it's going to take a while to fill and finally discharge water, the new muffler is over 4 gallons. 10 years ago, I might have done this myself, but as I'm in my 70's, time to let the youngsters take over.  Also a good thing that I had a professional look the boat over, needed a new cutlass brg. and T-G he noticed that the bellows on my dripless packing gland had disintegrated. I might not have noticed until my boat sunk. My advice, get a new muffler.

Jeff

Instead of painting the white stripe, I have been using white boot stripe tape , but that gets all munged  up at the water line as the paint does.  Ron, I think your solution to eliminating the stripe and painting over with anti-fowling will solve this problem, as said, once on the boat, stripe can't be seen. Gonna be a long winter, happy holidays to all...Jeff

Another note, if using this product, use rubber gloves that are designed for chemical use, not cheap disposable gloves

KW,  maybe the word dangerous should not have been used. There is an acid base in the mix, dangerous if not handled properly meaning you could get an acid burn if you don't wear rubber gloves or if a drop or 2 gets splashed on you.  Also the fumes are not really nice, I hold bucket at arms length. However, it removes the growth at the waterline and the yellow look above the water line.  Used correctly, it does the job.  This product will not harm the gelcoat

As I used to rep CRC chemicals, their marine division is Mary Kate.  I have always used their On-Off, yes it is dangerous but it does a great job.  Pour it into a plastic pail, use a cheap chip brush with natural bristles,3 or 4", wear gloves and hold pail away from you,  the results are amazing.  I have been using this product for years with no problems.  However, Ron, I might raise the water line.

Thank you Ron, I would flip out if I broke the inlet tube on install.  Maybe should put the hump on the inlet tube first then onto the riser, I'll see in the spring.  Thanks to all

KW,  I did read how Mark did the project and he did put west around the inlet to firmly hold the new tube in place.  I was just going to put some on for structural support so when I put the new hump on, less stress will be placed on the existing tube while wiggling on. Just in the planning stage now. I will not be touching the outlet, no need.

I will know view what Stu wrote up.  This help is just wonderful, such an awesome site, sharing ideas and suggestions

David,  thank you so much for that post, and, I have a dremel.  The pictures speak a million words, it was good seeing exactly what the riser and muffler look like with out the hose.  I will need a 6" hose.  I'm thinking I might mix up some west with some silica and apply it all around  the inlet tube for added support, let it dry and install the hump hose. Spring project, she's up on stands and covered for the winter.  Now come leaf raking and getting ready for winter, but today 11/2, it was 72* in Boston, should be in the low 50's.   Thanks again to all...Jeff

Thanks Stu,  I'll order a hump hose and install in the spring. Thanks for all the responses, muchly appreciated...Jeff

When I posted this, I didn't know if there was a need to replace due to age, or of course, leakage.  I'm glad I asked, it'l stay the way it is for now, hope I didn't just curse myself. I should also ask, if it becomes defective under motor, what will I hear that would alert me, I don't see the engine over heating? Jeff

Thanks for the responses. There is no leaking from anywhere I could see. I replaced 18' of the discharge years ago, but never touched the intake. FWIW, there is just a straight piece of rubber tubing from riser to inlet, no hump hose. Its been running great for all these years, there is  a saying in the trucking world, if it ain't broke, don't fix it.  So until a situation arises, I'll deal with it then. I do very little motoring, just out of the harbor and back in, unless no wind. Maybe put on 50 hrs a year, if that. Thanks again..Jeff

I post this question to all who have replaced the aqualift muffler.  Last spring I had to have a mechanic on board and he mentioned that some exhaust work should be done in the near future.  I asked him if it was the muffler and he said yes.  The boat is an '86, M25,  and it is probably the original, however, the engine runs like a top and there is no leaking out of the muffler. The removal looks pretty straight forward, 4 screws in the corners, remove the inlet hose from the riser and remove the output hose. Question is, how hard is it to remove and where did you get a new one.  I saw what looks like the original on Catalina Direct, no price listed. Also, if there is no leaking, should I undertake this project.  All replies greatly appreciated.  As the boat is now on the hard, this will be a spring project.  Thanks in advance...Jeff