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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 |
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#1
IP: 75.192.112.213
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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. |
#2
IP: 24.136.67.99
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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 |
#3
IP: 38.118.55.125
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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.
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#4
IP: 70.91.159.33
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Water Batching?
Geeze O-man, yet another term. What is water batching?
__________________
Mike, Slower-Lower Eastern shore, MD 1973 Pearson 33 1967 Bristol 27 |
#5
IP: 75.175.114.198
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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. |
#6
IP: 76.247.173.83
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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 |
#7
IP: 148.170.241.1
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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.
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- Bill T. - Richmond, VA Relentless pursuer of lost causes |
#8
IP: 76.247.173.83
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Rust,
Exactly. Good definition. |
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