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#1
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exhaust elbow hotter then other ? ? overheating?
One of my exhaust elbows is hotter then the other when idleing on the
earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. |
#2
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On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote:
One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction ... So the threat of Saddam Hussein with weapons of mass destruction is real ...." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 |
#3
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well i just brought it in for that. It's coming out on one side and
dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message ... On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction .. So the threat of Saddam Hussein with weapons of mass destruction is real ..." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 |
#4
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On Sat, 4 Jun 2005 14:32:57 -0400, "ToneJohn" wrote:
well i just brought it in for that. It's coming out on one side and dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message .. . On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction .. So the threat of Saddam Hussein with weapons of mass destruction is real ..." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 Water had been coming out of both sides of mine when on the muffs. Last summer I noticed that almost no water was coming out the starboard side. I asked the marina and the mechanic shrugged it off. While on the water smoke started streaming from everywhere. I shut everything down, got the fire extinguisher, and opened the engine hatch cover. The smoke dissipated rapidly, and I saw the exhaust hose on the starboard side had melted through. That was the source of the smoke. The riser on that side was too hot to touch. I got towed in. Replaced both manifolds and risers (8 seasons old). Now water comes out both sides, equally, with the muffs. That's my story. -- John H "All decisions are the result of binary thinking." |
#5
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"John H" wrote in message ... On Sat, 4 Jun 2005 14:32:57 -0400, "ToneJohn" wrote: well i just brought it in for that. It's coming out on one side and dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message . .. On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction .. So the threat of Saddam Hussein with weapons of mass destruction is real ..." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 Water had been coming out of both sides of mine when on the muffs. Last summer I noticed that almost no water was coming out the starboard side. I asked the marina and the mechanic shrugged it off. While on the water smoke started streaming from everywhere. I shut everything down, got the fire extinguisher, and opened the engine hatch cover. The smoke dissipated rapidly, and I saw the exhaust hose on the starboard side had melted through. That was the source of the smoke. The riser on that side was too hot to touch. I got towed in. Replaced both manifolds and risers (8 seasons old). Now water comes out both sides, equally, with the muffs. That's my story. -- John H "All decisions are the result of binary thinking." Yea sounds like my story... Last season they replaced one exhaust manifold and shutters this year they replaced the exhaust flaps... I don't know what to do.. roll the dice.. I'm no mechanic so when i call the marina and tell them that i have spoken with other people and they stated it should come out both side they'll tell me the same thing i mentioned before... let me ask you a question on the side of the exhaust elbow in question if i removed the rear tubing where it connects to the exhaust pipe near the exhaust flaps and start it up, i'm assuming i should see water coming out. is that a way to troubleshoot? |
#6
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"John H" wrote in message ... On Sat, 4 Jun 2005 14:32:57 -0400, "ToneJohn" wrote: well i just brought it in for that. It's coming out on one side and dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message . .. On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction .. So the threat of Saddam Hussein with weapons of mass destruction is real ..." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 Water had been coming out of both sides of mine when on the muffs. Last summer I noticed that almost no water was coming out the starboard side. I asked the marina and the mechanic shrugged it off. While on the water smoke started streaming from everywhere. I shut everything down, got the fire extinguisher, and opened the engine hatch cover. The smoke dissipated rapidly, and I saw the exhaust hose on the starboard side had melted through. That was the source of the smoke. The riser on that side was too hot to touch. I got towed in. Replaced both manifolds and risers (8 seasons old). Now water comes out both sides, equally, with the muffs. That's my story. -- John H "All decisions are the result of binary thinking." and........ if i remove the exhaust elbow how can i tell if replacing is in order? any sites that show ya what they should look like... keeping in mind that my boat is a 94 and there should be some sign of use... |
#7
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On Sat, 4 Jun 2005 15:19:10 -0400, "ToneJohn" wrote:
"John H" wrote in message .. . On Sat, 4 Jun 2005 14:32:57 -0400, "ToneJohn" wrote: well i just brought it in for that. It's coming out on one side and dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message ... On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H "Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction .. So the threat of Saddam Hussein with weapons of mass destruction is real ..." - Sen. John F. Kerry (D, MA), Jan. 23. 2003 Water had been coming out of both sides of mine when on the muffs. Last summer I noticed that almost no water was coming out the starboard side. I asked the marina and the mechanic shrugged it off. While on the water smoke started streaming from everywhere. I shut everything down, got the fire extinguisher, and opened the engine hatch cover. The smoke dissipated rapidly, and I saw the exhaust hose on the starboard side had melted through. That was the source of the smoke. The riser on that side was too hot to touch. I got towed in. Replaced both manifolds and risers (8 seasons old). Now water comes out both sides, equally, with the muffs. That's my story. -- John H "All decisions are the result of binary thinking." Yea sounds like my story... Last season they replaced one exhaust manifold and shutters this year they replaced the exhaust flaps... I don't know what to do.. roll the dice.. I'm no mechanic so when i call the marina and tell them that i have spoken with other people and they stated it should come out both side they'll tell me the same thing i mentioned before... let me ask you a question on the side of the exhaust elbow in question if i removed the rear tubing where it connects to the exhaust pipe near the exhaust flaps and start it up, i'm assuming i should see water coming out. is that a way to troubleshoot? The water should come out there. But, if it's coming out there, it'll be coming out the exhaust. This may be a method of trying it out on the water, but it could be a little messy. -- John H "All decisions are the result of binary thinking." |
#8
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On Sat, 4 Jun 2005 15:22:37 -0400, "ToneJohn" wrote:
"John H" wrote in message .. . On Sat, 4 Jun 2005 14:32:57 -0400, "ToneJohn" wrote: well i just brought it in for that. It's coming out on one side and dribbling out on the other. The marina said that that is normal while on the earmuffs. The exhaust flaps were shot and they replaced them. But it still comes out on one side mainly. The marina said that this is because there isn't enough water flow while on the muffs and when its in the water it comes out both sides while driving. The thing that is odd was i thought i did remember last year the water coming out from both sides, but the marina assured me that as long as it comes out on one side and a little comes out on the other it's fine. Hope that's true... opinion??? When i ran it in the lake the other day it did not overheat and the elbows were hot but i could hold my hand on them for aout 5-10 seconds stil... "John H" wrote in message ... On Sat, 4 Jun 2005 12:29:21 -0400, "ToneJohn" wrote: One of my exhaust elbows is hotter then the other when idleing on the earmuffs. I just had the exhaust flaps replaced. Basically i can keep my hand on the elbow for about 5-10 seconds before i need to remove them. The other elbow seems hot but i can keep my hand on longer. It also seems that the rear of the elbow is exteremely hotter then the front, i'm assuming because the cool water enters from the front of the elbow. I have a normal temperature range so i'm not sure if this will be a potential problem once i'm out on the lake. any advice is appreciated. When on the muffs are you getting a good flow of water from each side of the exhaust? My flow is about the same from each side. When the riser on the starboard side was plugged, the flow on that side was nil. -- John H Water had been coming out of both sides of mine when on the muffs. Last summer I noticed that almost no water was coming out the starboard side. I asked the marina and the mechanic shrugged it off. While on the water smoke started streaming from everywhere. I shut everything down, got the fire extinguisher, and opened the engine hatch cover. The smoke dissipated rapidly, and I saw the exhaust hose on the starboard side had melted through. That was the source of the smoke. The riser on that side was too hot to touch. I got towed in. Replaced both manifolds and risers (8 seasons old). Now water comes out both sides, equally, with the muffs. That's my story. -- John H "All decisions are the result of binary thinking." and........ if i remove the exhaust elbow how can i tell if replacing is in order? any sites that show ya what they should look like... keeping in mind that my boat is a 94 and there should be some sign of use... Can't help you there. If you've gotten 10 years out of them, I'd replace them. I wish I'd replaced mine after 7 seasons, instead of trying to get a couple more out of them. I'm no mechanic, but replacing the manifolds and risers was pretty straightforward. Get all the parts and gaskets, some gasket glue (marina will probably let you use a little), and a helper to hold things up while you start the bolts. -- John H "All decisions are the result of binary thinking." |
#9
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"John H" wrote in message .....If you've gotten 10 years out of them, I'd replace them. ......but replacing the manifolds and risers was pretty straightforward. I'll second John's evaluation. Visual inspection of the riser, manifold, or elbow will only reveal a small portion of the interior. Ten years is a damn good run for a cast iron part, and continued usage (particularly when you're already showing symptoms of blockage) is gambling with a very large downside. Replace "em. |
#10
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I think i'm gonna.. It's a fairly simple job to do... i got a used exahuast
manifold put in last season. but there's still the elbow and the other side exhaust manifold and elbow.. Should i replace both the manifold and elbow on the other side? I know you said visual inspection will only reveal little but is there a way to tell or jus treplace em? "John Gaquin" wrote in message ... "John H" wrote in message .....If you've gotten 10 years out of them, I'd replace them. ......but replacing the manifolds and risers was pretty straightforward. I'll second John's evaluation. Visual inspection of the riser, manifold, or elbow will only reveal a small portion of the interior. Ten years is a damn good run for a cast iron part, and continued usage (particularly when you're already showing symptoms of blockage) is gambling with a very large downside. Replace "em. |
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