Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Sign in to follow this  
electricjohn

Exhaust getting louder

Recommended Posts

electricjohn

Although my Malibu season ended today, I noticed my exhaust was getting louder this season.  Engine is at 500 hrs now.  When I get the boat back to NJ, I will look up the thru hulls with a flashlight and see if everything looks normal up there.  It is a bit disappointing to hear the exhaust getting louder when I opted for the silent rider upgrade.  Think this is normal for the age and hours of my boat?  I would like to put Nautique mufflers on my boat if my mufflers are failing.  Those boats are so quiet.

Share this post


Link to post
csilcox

Mine did the same after a winter lay up but it was more of a rattle.  I ended up pulling Silent Rider off and when removed I shook it a few times only to realize that a baffle inside had come apart.  I ended up just going straight hose to output and went with Fresh Air Exhaust and now MUCH quitter than it ever was!

Share this post


Link to post
Woodski

@electricjohn:  another element that can cause increased exhaust noise is an impeller on it's way out, less water passing through exhaust to muffle noise.  Also, as noted, remove muffler and shake.  Also, @Michigan boarder did some repair work on his and there are some pics posted on this site that may be helpful.

Share this post


Link to post
electricjohn

Looking into the thru hulls with a flashlight did not show nothing out of the ordinary, although I did notice water still laying in the bottom of the mufflers.  I will take a closer look in there when I winterize.  This time I was kind of in a hurry getting one boat put away and another ready.  My 1970 Winner just went through a composite rebuild of the transom and floor which was the only wood in the boat.  Trying to get the boat ready in one weekend so I can get back up to the lake.  Boat is now 200 lbs lighter due to the lightweight composites.

Share this post


Link to post
Woodski

@electricjohn:  Cool on the lightweighting of the Winner, what is the composite construction makeup?  Did you do an actual weight comparison or is that an estimate?

Edited by Woodski

Share this post


Link to post
electricjohn

I weighed the boat before and after at the restoration place, but the original wood was saltwater saturated after 46 years (3800 hrs) of use. The material used is called Coosa Bluewater and comes in different densities.  He used #26 (lbs/cubic ft) for the transom, and #20 for the floor.  He is located in NC close to the Norfolk VA Navy yard and does a lot of work for them, getting defense contractor prices for all his materials.  How do you mention me in your post, would like to use that feature.

Share this post


Link to post
Woodski

@electricjohn:  simply type @ and (at least part of) the name of the person you want to have notified, you will see the name box pop up and click on their name and voila!  Thanks for the info on material.

Edited by Woodski

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...