Muffler Wrap
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: Common Questions
Forum Discription: Visit here first for common questions regarding your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=16928
Printed Date: November-22-2024 at 11:45am
Topic: Muffler Wrap
Posted By: pumpdad
Subject: Muffler Wrap
Date Posted: March-27-2010 at 5:46pm
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I am replacing the exhaust hoses on my 81 SN. Could any one tell me why my mufflers were wrapped in carpet and if I need to do it again? The carpet was pretty rotten and it looked like this was a bad trap for build up and didi not allow water to drain.
Thanks, Chad ------------- Chad Lankford |
Replies:
Posted By: 8122pbrainard
Date Posted: March-27-2010 at 11:41pm
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Chad,
The carpet is there as a cushion to prevent any rattling/noise from the exhaust from vibrating against a stringer/floor. It's also there to prevent the exhaust from rubbing through it shouldn't. I'd put something back in there. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: PAPA
Date Posted: March-28-2010 at 1:25pm
| I spent the day yesterday with my son taking out the complete interior and carpet out of our 1977 Ski Nautique and found the same thing. No mufflers just steel pipe wrapped with what appeared to be original carpet. I know for noise we will have to put something back in there. Is that the best option? I guess its not too bad as it lasted 30+ years. Anybody use anything else ? |
Posted By: Gary S
Date Posted: March-28-2010 at 2:17pm
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Some of us do run mufflers,but most don't,it's all a matter of personal preference. If you like the sound you had before,put it back together the same way.Most run pipe to the back,but using hose all the way may quiet it down a little. http://correctcraftfan.com/forum/forum_posts.asp?TID=16215&KW=mufflers&PID=191366&title=span-classhighlightmufflers-span#191366 - Here is one of the old threads I found. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: PAPA
Date Posted: March-28-2010 at 2:51pm
| Gary, Sorry to throw you a curve, but by noise I meant the vibrating of the pipe against the floor. I love the sound of the boat the way it is. Any option other than carpet to put around the pipe to stop it from vibating? |
Posted By: SN206
Date Posted: March-28-2010 at 2:59pm
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rubber door mats work well. ------------- ...those who have fallen and those who will. |
Posted By: pumpdad
Date Posted: March-28-2010 at 3:23pm
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Thanks for everyones input. I may try the rubber floor mat trick. It just seemed the carpet caught a lot of scum and held to much water. ------------- Chad Lankford |
Posted By: SN206
Date Posted: March-28-2010 at 3:40pm
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If you look on the floor of most bars, you'll see some 3'x 5' perferated rubber mats that are about 3/4" or 5/8" thick. They are soft and pliable(hope I spellded dat right)and well work well if cut into smaller strips. You can find that material at some flooring stores or rest. supply stores. Then you can use the rest in your shop or in the bed of your pick-up. ------------- ...those who have fallen and those who will. |
Posted By: Fl Inboards
Date Posted: March-28-2010 at 5:51pm
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I use a 1/2" high density foam that I picked up at my local hose and rubber supply. I cut it into 6" strips long enough to wrap around either the muffler or pipe and then attach with big daddy Zip ties. This needs to be located and spaced accordingly to the length of tube being isolated. This stuff is not cheap as I paid nearly $50 for a sheet 24"X36", Carpet reminants are far cheaper but do not finnish out as well. ------------- Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise. 1993 Shamrock "fat" 20. 2008 Nautique 196 5.0 |
Posted By: pumpdad
Date Posted: April-02-2010 at 10:52am
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Thanks for all the info. I found something that worked real well and is very affordable. I used 4 inch rubber pvc joiners. They have two stainless clamps per coupling. I had to cut 2 inches out of the couplings, but they still clamped tight. This will let water pass by and keep the troughs clean. I will post a picture when I complete the project. These couplings were $5.00 at my local hardware and I put two per muffler. You have to offset the clamp screw, so it will not interfere with the floor. Chad ------------- Chad Lankford |
Posted By: 8122pbrainard
Date Posted: April-02-2010 at 11:24am
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Chad,
Like these? Fernco flex coupling: 
Great idea but the rubber shoulder next to the hose clamp isn't very tall. Keep a eye on them so the clamp doesn't start eating into the fiberglass. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: YooperSully
Date Posted: April-02-2010 at 1:32pm
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why not use the Fernco's without the clamp, or put a zip tie on em. They are only being used for cushion, correct? I don't see the need for the clamps. They are not holding two pieces of pipe together. ------------- 87' 2001 |
Posted By: pumpdad
Date Posted: April-03-2010 at 12:40am
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I believe I will put some zip ties on them. I put the clamps on and I see what you mean about rubbing the fiberglass.
Thanks, Chad ------------- Chad Lankford |
Posted By: OverMyHead
Date Posted: April-20-2010 at 3:17am
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Timely suggestion for me as I am replacing exhaust hose also. Thanks. I might visit my local AX-man surplus for other options. He has a lot of foam and rubber left overs. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: OverMyHead
Date Posted: April-20-2010 at 7:22pm
Here is my bargain option. Went to Axman surplus, Found bright yellow 1/8 sheets of closed cell foam, 1x2 feet for .45 cents each. I cut Them down to 4" strips and packing taped them end to end to make a 4" x 36" strips. I also purchased 36" wire ties 4 for a buck. Totoal cost per muffler 1.50 with tax. Of course the yellow wont stay bright for long in the bilge. I wanted black. but at the surplus store you get what you get.
 ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: OverMyHead
Date Posted: April-20-2010 at 7:43pm
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My new exhaust hose should show up Friday, What is the best thing to cut it with? ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: TRBenj
Date Posted: April-20-2010 at 7:48pm
A spoon? 
A hacksaw works pretty good. Assuming you got wire reinforced (hopefully the corrugated) you will also need to snip the wires as you go around. ------------- |
Posted By: OverMyHead
Date Posted: April-20-2010 at 7:50pm
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Sounds good. Yes I ordered the wire re-inforced corragated. Can I use a sawsall with a metal blade, or will it look like I chewed it with my teeth. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: OverMyHead
Date Posted: April-20-2010 at 7:54pm
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Looking at the inside of the muffler it looks like it can be orientated to let water flow through and not stay trapped, Is there an official up to them. Nothing is marked. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: TRBenj
Date Posted: April-20-2010 at 7:55pm
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I would think so- just go slow. Its pretty easy to get dragged up the hose along the wire, so pay attention and cut each one as you get to it. I usually smooth the cut surface on a bench grinder before installing.
I would say orient the mufflers so they dont hold water in the winter- mine werent marked up or down either. Front to rear became obvious as they would only install in the pockets one way- but Im not sure if theyre really directional (performance-wise). ------------- |
Posted By: Gary S
Date Posted: April-20-2010 at 11:57pm
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I wrap the hose with masking tape just for a reference to make a straight cut. I then use a regular hacksaw making the cut all the way around the hose.Don't try to cut thru it like a piece of wood,cut around it like a pipe cutter cuts pipe or tubing. You will feel when you get to the wire,go around it. When your done you can twist the hose a little and you then reach in and use a cutter or a dremel to cut the wire. My mufflers have a decal telling you which end is up. When you look inside from either end it looks like your looking into a cup. About 1/3 of the side of the cup is cut out and this faces down when mounted. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: Behl
Date Posted: April-21-2010 at 2:32am
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I use a chop or cut-off grinder. It is like a miter saw only a thin
grinding wheel. I cut my stainless exhaust pipes as well as any type of hose. ------------- Steve in Indy http://correctcraftfan.com/diaries/details.asp?ID=1702&sort=&pagenum=1&yrstart=1976&yrend=1980" rel="nofollow - Redone 1977 Ski Tique |
Posted By: OverMyHead
Date Posted: April-21-2010 at 2:45am
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I was thinking about trying my angle grinder but I didnt know which disc to use. I have them for metal and masonry but not a general purpose. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: April-21-2010 at 8:50am
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Dave,
Stay away from the angle grinder with the cut off blade in it. The rubber's going to bind and the grinder will want to come back to bite you!! The stuff really isn't bad to cut. Stick with the hack saw. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: athhud
Date Posted: April-21-2010 at 4:59pm
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Strap a hose clamp on at your cut line and you'll have nice straight cuts with the hacksaw! ------------- Andrew |
Posted By: OverMyHead
Date Posted: April-21-2010 at 8:08pm
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Its nice to order stuff online, it gives me time to ask you guys how to do the job correctly. Thanks. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |
Posted By: OverMyHead
Date Posted: April-25-2010 at 5:34am
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My order showed up. I applied two hose clamps about a quarter inch on either side of the cut line as guides. I then used my Rockwell sonicrafter, Similar to fein multimaster Saw, (vibrating blade). to make the cuts through the rubber,I could not nip the wire reinforcment with any hand held nippers that I own, so I used a metal cut off wheel on my angle grinder to cut the wires and retrim them back inside the rubber wall. Each cut took under a minute this way with nice clean results. ------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique |