Muffler to hull insulator
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=39202
Printed Date: November-16-2024 at 4:27pm
Topic: Muffler to hull insulator
Posted By: gtxragtop
Subject: Muffler to hull insulator
Date Posted: July-04-2016 at 6:49pm
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My 96 gt40 ski nautique has the stock muffler. I noticed the other day that the muffler seems to be vibrating against the hull. I lifted the muffler slightly and some of the noise stopped. What material is used between the muffler and hull to reduce noise transmission? I wonder if mine is gone. ------------- 1996 Ski Nautique GT40 Worcester, MA. |
Replies:
Posted By: 8122pbrainard
Date Posted: July-04-2016 at 9:24pm
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Scrap carpet was always a choice from the factory! I'd suggest a closed cell Buna-N foam rubber about 1/4" thick and a density of around 14 lbs/cu. ft. McMaster has it. ------------- /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: gtxragtop
Date Posted: July-04-2016 at 11:37pm
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Strips or mat? Have never pulled muffler so I don't know the muffler fits into the hull ------------- 1996 Ski Nautique GT40 Worcester, MA. |
Posted By: Watauga
Date Posted: July-05-2016 at 12:47am
My Ski Nautique originally has carpet strips wrapped around them. During the rebuild I simply purchased blue foam from Lowes, found in the insulation department, and secured it with zip ties. Better than new. ------------- http://goo.gl/t8gAkI" rel="nofollow - 1980 Rebuild http://goo.gl/TFsgCy" rel="nofollow - Diary Signpainter, Disaster Responder, Longline Barefooter |
Posted By: 8122pbrainard
Date Posted: July-05-2016 at 7:48am
Dave, You should be able to see where the muffler is rubbing on the hull so that's where you want the cushioning. The area is probably small so strips of foam rubber will work. They are made with an adhesive backing but getting it to stick will require careful cleaning. I'd suggest a solvent wipe before applying the foam. ------------- /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 < |
gtxragtop wrote:Posted By: gun-driver
Date Posted: July-05-2016 at 9:33am
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Those aren't the type of mufflers that they used on GT-40s. Dave do you have the inverta-flow or hull hugger muffler? 96 ski I'm assuming an inverta-flow |
Posted By: gtxragtop
Date Posted: July-05-2016 at 9:17pm
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Stock rectangular muffler ------------- 1996 Ski Nautique GT40 Worcester, MA. |