Angle of wet exhaust? My install

[Brian Reith]

I just finished installing my exhaust system. Take a look at the angle of the exhaust. Any chance this could go back into turbo? 

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[Brian Reith]

Genius!

great idea! Thanks for the info 

[Tony Athens]

This video says it all————-Thanks. 

What is amazing to me are the “engineers” out there have still not figured it out .. It only took me about about  4 or 5 installs   30+++ year ago to see what was happening and WHY it was happening.. Yes, I was quite green back in the mid-80’s

Pure and simple  “Couch Engineering”..  Maybe that is where I coined the term when it comes to marine installations?

 

 

[Tony Athens]

Buy some 1/4″ or 5/16″ ID 316 flat washers.   Tack in place for testing?  Go from there.

[Brian Reith]

Ok good to know!

Yes I didn’t think of that. What would you suggest to use to plug the outlet holes. Alternatively, could I use a high temp hose to prevent failure? 

[Rob Schepis]

This is off a 3/4″ garden hose at full flow, just to give you a visual as to the flow favoring those lower holes.

1 user thanked author for this post.

Tony Athens

[Tony Athens]

This is what I foresee….Normally when I see a down angle so shallow, I would add a 2-3″  long extension to the mixers inner diameter so the water and exhaust gases to not touch each other (try to mix) right at the the end on the main mixer–This adds a layer of safety to water rolling around the the exhaust system when not running ( similar to s surge tube).. Spray ring design:  But this is secondary to what I know will happen at all speeds less than  probably 75% of full RPM or more.   All the water will roll out the bottom 1/2  of the mixer and the top of the hose will get so hot it will fail / delaminate quickly in a short time. In so many words, the water you pump will “not mix” the seawater properly to where you can get the exhaust gases below 200F , with 140-160F more idea for in the first few feet after the mixer..  The pic attached tells the story.. Every mixer design is different, but still the water and gases to to MIX. IMO, in your case, you need to close off   your  3,4, 5 pm and  7,8,9 pm  holes for a start to force the water up to the top….You need to build a positive water pressure in the mixer — 1-3 PSI is a good number      

[Brian Reith]

Here is a pic of mixer

Here is the mixer water only comes out the end.  What you think Tony? 

[Tony Athens]

Pretty shallow down angle……Can I see a better picture inside the mixer as to the water injection design. Where the does exhaust go from the mixer?

[Author]

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