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#1
posted to rec.boats
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The Marquis has a dubious manifold...
OK, so while I have the boat out in the sunlight and have the back
panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? Or should I jsut bite it and buy a new manifold? |
#2
posted to rec.boats
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The Marquis has a dubious manifold...
On Jul 15, 9:00*am, Tim wrote:
OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? *Or should I jsut bite it and buy a new manifold? BTW, This manifold in question is on a v-8 350 Chevy mercruiser |
#3
posted to rec.boats
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The Marquis has a dubious manifold...
"Tim" wrote in message ... OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? Or should I jsut bite it and buy a new manifold? BITE! |
#4
posted to rec.boats
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The Marquis has a dubious manifold...
On Jul 15, 9:11*am, "Harold" wrote:
"Tim" wrote in message ... OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? *Or should I jsut bite it and buy a new manifold? BITE!- Hide quoted text - - Show quoted text - Yeah, that's what I'm thinking. Running around a lake where you don't have far to go to shore is one thing, being out on the Ohio River is totally another. Bit still. It wouldn't hurt to have a tube of 'something' on board to try to make a quick fix if necessary. |
#5
posted to rec.boats
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The Marquis has a dubious manifold...
"Tim" wrote in message ... On Jul 15, 9:11 am, "Harold" wrote: "Tim" wrote in message ... OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? Or should I jsut bite it and buy a new manifold? BITE!- Hide quoted text - - Show quoted text - Yeah, that's what I'm thinking. Running around a lake where you don't have far to go to shore is one thing, being out on the Ohio River is totally another. Bit still. It wouldn't hurt to have a tube of 'something' on board to try to make a quick fix if necessary. It wouldn't hurt to carry some JB Weld and Marine Tex in your on board tool kit. |
#6
posted to rec.boats
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The Marquis has a dubious manifold...
On Jul 15, 10:26*am, "Harold" wrote:
"Tim" wrote in message ... On Jul 15, 9:11 am, "Harold" wrote: "Tim" wrote in message ... OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? Or should I jsut bite it and buy a new manifold? BITE!- Hide quoted text - - Show quoted text - Yeah, that's what I'm thinking. Running around a lake where you don't have far to go to shore is one thing, being out on the Ohio River is totally another. Bit still. It wouldn't hurt to have a tube of 'something' on board to try to make a quick fix if necessary. It wouldn't hurt to carry some JB Weld and Marine Tex in your on board tool kit.- Hide quoted text - - Show quoted text - Those are on the check list... |
#7
posted to rec.boats
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The Marquis has a dubious manifold...
"Tim" wrote in message ... On Jul 15, 10:26 am, "Harold" wrote: "Tim" wrote in message ... On Jul 15, 9:11 am, "Harold" wrote: "Tim" wrote in message ... OK, so while I have the boat out in the sunlight and have the back panel off to look for anything that myight need repairs, I noticed that the previous owner muust have left water in the left exhaust manifold and it froze and cracked. They have generous globs of JB Weld over them and it held well, However I noticed that there is a bottom crack where it seems the JB weld has cracked loose and I can see a bit of rust. Due to aftermarke, the price of a lot of these items has really come down to being reasonable. I probably ought to change out the manifold but it's a real bugger to take of where it sits. So, I'm going to chip away at the repair to see how sound it is. this isn't a presurized system so there's not any steam build up. And the repair looks like it's held for quite a while, but is starting to fail. Does anyone know of a better smear on product to seal the crack? Or should I jsut bite it and buy a new manifold? BITE!- Hide quoted text - - Show quoted text - Yeah, that's what I'm thinking. Running around a lake where you don't have far to go to shore is one thing, being out on the Ohio River is totally another. Bit still. It wouldn't hurt to have a tube of 'something' on board to try to make a quick fix if necessary. It wouldn't hurt to carry some JB Weld and Marine Tex in your on board tool kit.- Hide quoted text - - Show quoted text - Those are on the check list... -------- Maybe a couple of oversized hose clamps and a hunk of gasket material? |
#8
posted to rec.boats
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The Marquis has a dubious manifold...
On Thu, 15 Jul 2010 07:00:17 -0700 (PDT), Tim
wrote: Or should I jsut bite it and buy a new manifold? Yes, and check/replace the risers also. If either one fails you can hydro lock the engine with disasterous results. In salt water they have a typical life expectancy of 4 or 5 years. |
#9
posted to rec.boats
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The Marquis has a dubious manifold...
On Jul 15, 11:28*am, Wayne.B wrote:
On Thu, 15 Jul 2010 07:00:17 -0700 (PDT), Tim wrote: Or should I jsut bite it and buy a new manifold? Yes, and check/replace the risers also. *If either one fails you can hydro lock the engine with disasterous results. *In salt water they have a typical life expectancy of 4 or 5 years. Yes, and these are origionals from 1977. When I do the manifold work, I'll at least take them to the boat shop and at least have them tested and evaluated. |
#10
posted to rec.boats
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The Marquis has a dubious manifold...
On Thu, 15 Jul 2010 09:55:52 -0700 (PDT), Tim wrote:
On Jul 15, 11:28*am, Wayne.B wrote: On Thu, 15 Jul 2010 07:00:17 -0700 (PDT), Tim wrote: Or should I jsut bite it and buy a new manifold? Yes, and check/replace the risers also. *If either one fails you can hydro lock the engine with disasterous results. *In salt water they have a typical life expectancy of 4 or 5 years. Yes, and these are origionals from 1977. When I do the manifold work, I'll at least take them to the boat shop and at least have them tested and evaluated. I put new manifolds and risers on the Proline engine when it was about 9 years old. One of the manifolds had clogged from the loose rust scaling off the inside. And, I took great pains to flush mine every time I took it out. It's a pain in the butt, and they cost a little, but I'd replace them if they're over thirty years old. -- John H |
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