generator install exhaust - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 02-12-2009
Member
 
Join Date: Feb 2009
Posts: 80
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
motion300 is on a distinguished road
generator install exhaust

I am getting to do an install of a gen set The question is.. can I dump the 1.5'' gen set exhaust into the main exhaust tru hull so I don't heve to install another tru hull for the exhaust The main exhaust is 3'' Has anybody done this and where can I buy the fitting?
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 02-12-2009
Member
 
Join Date: Feb 2009
Location: Jupiter, FL
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
amarinesurveyor is on a distinguished road
First post here on this forum.
No. Every engine and generator exhaust should have its' own dedicated discharge port. Potential problems: when runnning both engines you might be causing too much backpressure on the exhausts; when running just the engine or generator, you could potentially be forcing water up the one that isn't running and get water into the cylinders. Plus if you have a survey done for insurance purposes or when selling, the surveyor will call it out and it will have to be fixed. Best to do it right the first time.
Brian
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 02-12-2009
celenoglu's Avatar
Senior Member
 
Join Date: Dec 2008
Posts: 561
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 6
celenoglu is on a distinguished road
In my opinion you better have different hole for the gen set. The diameters of exhaust pipes are generally only sufficient for which engine they are designed for. You cannot use two systems at the same time.

Another drawback might be mixture of exhaust gases and water from one system to the other. Although the exhaust sysystems are non return pressure of the gases might force them to return to the other system. When you are running the gen the gases and water might be forced to the engine and vice versa.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 02-12-2009
Junior Member
 
Join Date: Apr 2006
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
faisond is on a distinguished road
Recommend separate exhausts

Motion,

I would advise against tying the two together. You may introduce the possibility of forcing water from the main engine exhaust into the genset engine (if it were not running) or vice versa. I just finished a self-install of a genset. I used a 1.5" bronze mushroom through-hull for the exhaust. Cost about $50 at WM. No big deal to install so long as you're out of the water.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 02-12-2009
Member
 
Join Date: Feb 2009
Posts: 80
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
motion300 is on a distinguished road
Well I am in the water but I believe I can drill the hole Better safe then stupid
Does antbody make a 1.5 tru hull with a flapper?
Thanks
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 02-13-2009
Junior Member
 
Join Date: Apr 2006
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
faisond is on a distinguished road
Centek Industries

Motion,

Centek industries makes a through-hull with a flapper made of fiberglass - which is fine for the wet exhaust from your genset. Give them a google. If you install one of their water lift mufflers in the exhaust circuit (about $125 off the internet for a 1.5" inlet/outlet) I think you wouldn't need a flapper. Depending on the vertical distance between the genset's exhaust and your water line, you should consider including a vertical loop when routing your exhaust from the engine (or muffler) to the through-hull to prevent siphoning of water when heeling. The instructions accompanying the muffler I bought recommended an 18" loop above the waterline.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 02-13-2009
Junior Member
 
Join Date: Apr 2006
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
faisond is on a distinguished road
Muffler Link

Motion,

Tried to post a link to a muffler that is suitable for your application but the forum rules deem me not worthy. If you go to centekindustries.com and click on their vernalift line of mufflers, you will find mufflers suited for your application that should obviate the need for a flapper on your exhaust through-hull.

Last edited by faisond; 02-13-2009 at 07:57 AM. Reason: mispelling
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Any Gearhead's? Capnblu Sailboat Design and Construction 40 11-23-2008 06:58 PM
Atomic 4 Exhaust fbycericson Ericson 5 02-07-2008 02:05 PM
1967 Irwin 37 cc with exhaust problem Irwin37mkIV Irwin 5 08-02-2007 07:03 PM
Diesel Exhaust Systems Sue & Larry Gear and Maintenance Articles 0 11-07-2001 07:00 PM
Cat30 Exhaust riser blew up - Engine won''t start E_N_Z_O Gear & Maintenance 2 07-31-2001 06:55 PM


All times are GMT -4. The time now is 02:49 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.