What do the mid-70's mufflers look like inside?
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Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=50616
Printed Date: May-01-2025 at 2:22pm
Topic: What do the mid-70's mufflers look like inside?
Posted By: robdubbleu
Subject: What do the mid-70's mufflers look like inside?
Date Posted: May-12-2022 at 12:48pm
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Hey guys, what do the insides of the mid-70's muffler/silencers look like? Mine are just hollow fiberglass tubes. I'm not sure if that's normal or not. My boat is LOUD. Don't get me wrong, I love the V8 sound. But the sound level (especially for passengers at the back of the boat) is a little too loud. I'm thinking about putting some dynamat or something inside the engine cover but I figured I'd see if maybe there's something wrong with my mufflers. Thanks! ------------- 1976 Ski Nautique (PCM 351) - Currently under major renovation: floor, carpet, interior, gel coat, engine overhaul - ALMOST DONE! |
Replies:
Posted By: Gary S
Date Posted: May-12-2022 at 3:41pm
This is a typical Centrex muffler like used on these. Basically as you look into either end it's like your looking down into a glass. The part that is cut out as you see here,is placed down to let the water drain out when shut off ------------- 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: robdubbleu
Date Posted: May-13-2022 at 1:32pm
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Ok if that holds true for my mufflers, they were either modified by a previous owner or blown out and gutted themselves over time. This thing sounds good but it's noisy... Anybody know of any good condition ones for sale? I need 2... ------------- 1976 Ski Nautique (PCM 351) - Currently under major renovation: floor, carpet, interior, gel coat, engine overhaul - ALMOST DONE! |
Posted By: KENO
Date Posted: May-13-2022 at 8:46pm
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I don't think any 76's had mufflers from the factory, just straight copper tubes, so I'd guess somebody put in fiberglass tubes for some reason. I guess the gods of noisy pipes haven't noticed your thread or they'd be yelling at you
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Posted By: swilliams
Date Posted: May-13-2022 at 10:15pm
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Love my loud pipes! ------------- 1976 Martinique,350 Omc. 1975 Glastron/Carlson CV16,115 Merc. |
Posted By: robdubbleu
Date Posted: May-13-2022 at 11:39pm
Haha yeah I know it's a controversial thing to say. And it's not too loud for me in the driver's seat, but no rear-seat passenger can hear anything at all while cruising. Buuuuut I'll probably just keep it that way  ------------- 1976 Ski Nautique (PCM 351) - Currently under major renovation: floor, carpet, interior, gel coat, engine overhaul - ALMOST DONE! |
KENO wrote:Posted By: NeilMcG
Date Posted: April-22-2023 at 8:53pm
| My centak silencers have alligator cracks throughout the inside. Is that normal wear and tear or a sign of imminent failure? The outsides are fine. |