Invertaflow muffler question |
Post Reply | Page <12 |
Author | ||
SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
Post Options
Thanks(0)
|
|
Taking the stand pipe out would just turn the muffler into a straight Y pipe.
Lower flow restriction & louder exhaust sound would be the result. |
||
“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
||
dwouncmd
Gold Member Joined: July-10-2009 Location: NC Status: Offline Points: 919 |
Post Options
Thanks(0)
|
|
I think that is exactly how it works.
Probably. Not sure. I think the leaks occur as the thing falls apart. It is mostly full of water all the time. Maybe freezing in the winter time leads to cracks, leaks and the small pipe coming unglued? Unless you run antifreeze through until it comes out the exhaust, the water left in would freeze. |
||
89 SN
<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=6567&sort=&pagenum=1" rel="nofollow">7 |
||
dwouncmd
Gold Member Joined: July-10-2009 Location: NC Status: Offline Points: 919 |
Post Options
Thanks(0)
|
|
That seems right to me... |
||
89 SN
<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=6567&sort=&pagenum=1" rel="nofollow">7 |
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
Freezing was never an issue as this boat was in central Florida it's entire life.
Thanks again for all the help. Much appreciated. |
||
'92 Correctcraft Ski Nautique
|
||
backfoot100
Platinum Member Joined: January-03-2007 Location: United States Status: Offline Points: 1897 |
Post Options
Thanks(0)
|
|
I don't think it'll be louder. The water level in the tank is what's doing the muffling. I seem to remember somebody else here that completely removed all the baffles when they blew out the invertaflow and repaired it. There wasn't any noticeable difference in the sound. |
||
When people run down to the lake to see what's making that noise, you've succeeded.
Eddie |
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
I got the spillway pipe glued back in and I've used about 2-3 layers of 6oz mat to seal up the sides. Is this enough glass or do I need to put down more. Seems pretty solid to me, but I have no idea how much pressure is in the muffler while the motor is running.
|
||
'92 Correctcraft Ski Nautique
|
||
8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
Post Options
Thanks(0)
|
|
JP,
I'd be surprised if the exhaust system sees more than 2 to 3 PSI. I thinks your repair is fine. The system is pretty open and doesn't back up much head of water. It takes 27" of water column to create 1 PSI. |
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
Thanks Pete. I guess I'll find out soon enough. just need to grind down some rough spots and paint her up.
|
||
'92 Correctcraft Ski Nautique
|
||
Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
|
|
Well that's not good,I have been using the pour method,can anyone verify that there is any water left in the muffler? You would think that there would be some sort of drain or reference to this in the owners manual. Maybe a call to the muffler manufactor is in order? |
||
Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
|
|
I just emailed Centex about the Invertaflo holding water,will let everyone know what they say.
|
||
SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
Post Options
Thanks(0)
|
|
If freeze expansion was a problem, wouldn't all of us northerners with this muffler have failures by now? Mine seems to be fine (knock on wood).
|
||
“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
||
JoeinNY
Grand Poobah Joined: October-19-2005 Location: United States Status: Offline Points: 5694 |
Post Options
Thanks(0)
|
|
I cant imagine it doesnt hold a bit of water but it would have plenty of room to expand and gives a bit more than cast. When is the last time you saw water in an open plastic bucket cause a problem when it froze?
|
||
dwouncmd
Gold Member Joined: July-10-2009 Location: NC Status: Offline Points: 919 |
Post Options
Thanks(0)
|
|
I just wonder if the freeze/thaw expansion cycle has anything to do with the cracks, leaks, and particularly the inner pipe working loose. I think there is plenty of room above the waterline for expansion, but I bet the water in the muffler freezes solid. |
||
89 SN
<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=6567&sort=&pagenum=1" rel="nofollow">7 |
||
Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
|
|
Good analogy Joe but the only way I can test right now is to put some water in an ice cube tray |
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
Our boat has been a Florida boat it's entire life. freezing had nothing to do with our leaks.
|
||
'92 Correctcraft Ski Nautique
|
||
Orlando76
Grand Poobah Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
Post Options
Thanks(0)
|
|
I would think if it didn't hold water, then when you crank it on the trailer for a slight second it'd be louder until it filled up as the water does a good part of the muffling??
|
||
Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
|
|
Mine is definitely louder when it first starts even at the dock. Here is the responce I recieved this morning--- Good morning Gary, You are correct, by design, we have always included a drain hole in the outlet pipe of the muffler in order to drain water when the engine shuts down. However, a very small amount of water will remain inside of the muffler. This small amount of water will not pose a problem if it were to freeze. If the muffler was full of water, then you would need to worry about getting antifreeze into the muffler. We also include drain screws in the mufflers to drain water as well. Let me know if you have any other questions. Regards, Bert Browning Centek Industries, Inc. Manager, Product Design & Engineering Mechanical Engineer Phone: 1-229-228-7653 Mobile: 1-229-224-5653 Fax: 1-229-228-1270 Email: browning@centekindustries.com SKYPE: bertbrowning |
||
dwouncmd
Gold Member Joined: July-10-2009 Location: NC Status: Offline Points: 919 |
Post Options
Thanks(0)
|
|
I don't have a drain hole on the outside and did not see evidence of one on the inside pipe when it was apart (I probably just missed it; now it is surely glassed over) |
||
89 SN
<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=6567&sort=&pagenum=1" rel="nofollow">7 |
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
I have a small screw on the starboard side of the the muffler body about an inch up from the bottom edge. It's currently glassed over. Haven't decided if I'm going to drill it out again.
I did not see any other drains on the muffler. |
||
'92 Correctcraft Ski Nautique
|
||
TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21130 |
Post Options
Thanks(0)
|
|
Bert said there was a drain hole that would allow the water to drain out after shutdown. He didn't say it was an external drain... I would assume it to be internal since that would allow draining to happen naturally after every shutdown.
|
||
JPASS
Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283 |
Post Options
Thanks(0)
|
|
I do recall seeing a small hole near the bottom of the spillway insert under the hat near the base of the muffler housing. Maybe this is what he was referring. I could see how this would allow water to exit the exhaust naturally, albeit slowly, at levels below the top of the spillway pipe.
I went back a page and noticed the video I posted has the hole I'm referring to right there. |
||
'92 Correctcraft Ski Nautique
|
||
Post Reply | Page <12 |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |