Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Polls

View Poll Results: Water batching out of your exhaust while at your favorite cruising power setting?
Yes, and my spark plugs are sooty. 5 23.81%
Yes, and my spark plugs are a light grey in color. 9 42.86%
No, and my plugs are sooty. 1 4.76%
No, and my spark plugs are a light grey in color. 6 28.57%
Voters: 21. You may not vote on this poll

Reply
 
Thread Tools Display Modes
  #1   IP: 75.192.112.213
Old 09-02-2011, 09:00 AM
Administrator's Avatar
Administrator Administrator is offline
MMI Webmaster
 
Join Date: Oct 2004
Location: Chestertown, MD (Langford Creek)
Posts: 2,198
Thanks: 1,335
Thanked 365 Times in 182 Posts
Exhaust Batching

Do you see engine cooling water batching out of your exhaust while at your favorite cruising power setting, and is there a relationship between that condition and sooty plugs?

[YOUTUBE]vU8mZgTkARI[/YOUTUBE]

Last edited by Administrator; 09-02-2011 at 02:49 PM.
Reply With Quote
  #2   IP: 24.136.67.99
Old 09-02-2011, 09:38 AM
Dave Neptune Dave Neptune is offline
Afourian MVP, Professor Emeritus
 
Join Date: Jan 2007
Location: Grove, Oklahoma
Posts: 5,035
Thanks: 711
Thanked 1,289 Times in 839 Posts
Thumbs up Yep!

Yep mine batches no matter how hard I run. I have approximately 25 feet of exhaust with 2 risers and a long run to the transom from them. When I replaced my entire exhaust I reduced the diameter to 1 1/2" for the last 15 feet and it still batches. My engine runs very good although I do have reduced compression in #'s 3&4 and the STOCK J8 plugs are nice and clean just a bit of greyish tan and #'s 1&2 are a bit "lighter" in color. I cruise at !800~2100 RPM's with my Indigo prop at betweem 8~10 inches of manifold.

Dave Neptune
Reply With Quote
  #3   IP: 38.118.55.125
Old 09-02-2011, 11:59 AM
Don Moyer's Avatar
Don Moyer Don Moyer is offline
 
Join Date: Oct 2004
Posts: 2,811
Thanks: 0
Thanked 183 Times in 124 Posts
Thanks (as usual) for your thorough report, Dave. We've known for quite some time of your clean running engine even in the face of batching engine cooling water. Depending on the outcome of our survey, I'd like to get you back into the conversation to see what we can learn from your system.
Reply With Quote
  #4   IP: 70.91.159.33
Old 09-02-2011, 12:19 PM
Bold Rascal's Avatar
Bold Rascal Bold Rascal is offline
Senior Member
 
Join Date: Mar 2011
Location: Princess Anne, MD
Posts: 302
Thanks: 0
Thanked 1 Time in 1 Post
Question Water Batching?

Geeze O-man, yet another term. What is water batching?
__________________
Mike, Slower-Lower Eastern shore, MD
1973 Pearson 33
1967 Bristol 27
Reply With Quote
  #5   IP: 75.175.114.198
Old 09-02-2011, 12:37 PM
chiron's Avatar
chiron chiron is offline
Senior Member
 
Join Date: Feb 2011
Location: Portland Oregon
Posts: 112
Thanks: 0
Thanked 2 Times in 2 Posts
My exhaust water batches throughout all RPMs, however while cruising the transom is lower and the exhaust port is underwater so I am not sure if it batches while under load. My plugs are slightly sooty.

I am curious as to the possible connection between sooty plugs and water batching, would it be a slight back pressure.
Reply With Quote
  #6   IP: 76.247.173.83
Old 09-02-2011, 12:52 PM
dvd's Avatar
dvd dvd is offline
Senior Member
 
Join Date: Dec 2008
Location: San Joaquin Delta, California
Posts: 449
Thanks: 3
Thanked 12 Times in 8 Posts
I am assuming that the question is does the water from your exhaust at high cruising rpms come out in a steady stream or does it batch? (kind of a intermittent and uneven force of water every few seconds like it does at idle)

At crusing rpm my exhaust water comes out of the exhaust in a more even or steady fashion. No soot on the plugs.

dvd
Reply With Quote
  #7   IP: 148.170.241.1
Old 09-02-2011, 12:56 PM
ILikeRust's Avatar
ILikeRust ILikeRust is offline
Afourian MVP
 
Join Date: Sep 2010
Location: Henrico, VA
Posts: 2,202
Thanks: 2
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by Bold Rascal View Post
Geeze O-man, yet another term. What is water batching?

Splash. Pause. Splash. Pause. Splash. Pause.

Rather than a steady stream.

The engine of course will be running continuously, so you've always got exhaust spitting out - the question is whether you also have water continuously coming out, or is it blblblbl-plop-blblblblbl-plop-blblblblblb-plop, with the "plop" being a glob ("batch") of water coming out.
__________________
- Bill T.
- Richmond, VA

Relentless pursuer of lost causes
Reply With Quote
  #8   IP: 76.247.173.83
Old 09-02-2011, 01:03 PM
dvd's Avatar
dvd dvd is offline
Senior Member
 
Join Date: Dec 2008
Location: San Joaquin Delta, California
Posts: 449
Thanks: 3
Thanked 12 Times in 8 Posts
Rust,

Exactly. Good definition.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cooling water exhaust flow (video examples) Kelly Cooling System 14 08-21-2011 09:05 AM
No water flow in raw water cooling system LIG-C27 Cooling System 7 08-08-2011 02:56 PM
Cooling Water Flow in A4 Mart Cooling System 2 05-14-2011 08:31 PM
Sporadic cooling 160-200+, back to 140 JimB Cooling System 7 06-21-2010 09:19 AM
Cooling System Water Flow Speple` Cooling System 5 07-02-2008 11:15 PM


All times are GMT -4. The time now is 09:10 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2024 Moyer Marine Inc.

All Rights Reserved