| Page 1 of 2 | 1 | 2 |
|
|
1989 mercruiser 3.0 stalling after 30 min
1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall.
Are there any members out there that might have some insight into what the problem might be? |
1989 mercruiser 3.0 stalling after 30 min
"Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) |
1989 mercruiser 3.0 stalling after 30 min
On May 20, 7:52*pm, Rupp0003 wrote:
1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other *times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -- Rupp0003 www.marineengine.com Its free, and you wont have to put up with any of the ****tards in here. |
1989 mercruiser 3.0 stalling after 30 min
Eisboch wrote:
"Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) Yup. Same symptom as a bad stator on an outboard. |
1989 mercruiser 3.0 stalling after 30 min
On Tue, 21 May 2013 02:55:41 -0400, "Eisboch" wrote:
"Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) ==== Probably right. I had that problem on one of my old 454s. To make it worse, some genius decided that the coil should be mounted very near the exhaust manifold. |
1989 mercruiser 3.0 stalling after 30 min
On 5/21/2013 8:41 PM, Wayne B wrote:
On Tue, 21 May 2013 02:55:41 -0400, "Eisboch" wrote: "Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) ==== Probably right. I had that problem on one of my old 454s. To make it worse, some genius decided that the coil should be mounted very near the exhaust manifold. The dripping fuel makes me think needle and seat or heavy float. |
1989 mercruiser 3.0 stalling after 30 min
|
1989 mercruiser 3.0 stalling after 30 min
On Tue, 21 May 2013 20:41:39 -0400, Wayne B wrote:
On Tue, 21 May 2013 02:55:41 -0400, "Eisboch" wrote: "Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) ==== Probably right. I had that problem on one of my old 454s. To make it worse, some genius decided that the coil should be mounted very near the exhaust manifold. The dummies who built my old Proline put the live well right above the coil, with no sealant. Took me two coils to figure out where the problem was. I think Eisboch nailed it. At the price of coils, it's well worth giving a replacement a try. John H. -- Hope you're having a great day! |
1989 mercruiser 3.0 stalling after 30 min
"John H" wrote in message ... On Tue, 21 May 2013 20:41:39 -0400, Wayne B wrote: On Tue, 21 May 2013 02:55:41 -0400, "Eisboch" wrote: "Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) ==== Probably right. I had that problem on one of my old 454s. To make it worse, some genius decided that the coil should be mounted very near the exhaust manifold. The dummies who built my old Proline put the live well right above the coil, with no sealant. Took me two coils to figure out where the problem was. I think Eisboch nailed it. At the price of coils, it's well worth giving a replacement a try. John H. ---------------------------------------- Maybe. Educated guess due to similar experience. The fact that the OP says it runs fine at any speed for about half an hour makes me think it's probably not carburetor related. Sounds more like something heats up and fails which is more likely an ignition problem and the coil (especially if it's older) is suspect. Had the same thing happen one morning on the old '82 Century. Mrs.E. and I were taking a ride up to Boston Harbor from Scituate. It was probably just about in the same timeframe that the engine sputtered and died, right in the path of one of the Boston to Provincetown high speed boats that was just getting up on it's hydrofoils. It blew by us in a rush with it's horn blaring. After sitting dead in the water for a while the coil cooled off enough to restart the engine and we limped our way slowly back to Scituate at idle speed. |
1989 mercruiser 3.0 stalling after 30 min
On Wed, 22 May 2013 10:10:56 -0400, "Eisboch" wrote:
"John H" wrote in message .. . On Tue, 21 May 2013 20:41:39 -0400, Wayne B wrote: On Tue, 21 May 2013 02:55:41 -0400, "Eisboch" wrote: "Rupp0003" wrote in message ... 1989 merc 3.0 starts fine, runs fine for about half an hour at any speed or rpm then starts to miss and will eventually stall. Fuel dripping from flame arrestor but only once rough running starts. Will sometimes restart after a few minutes and run ok other times will continue to run rough and stall. Are there any members out there that might have some insight into what the problem might be? -------------------------------------------------------------------- Bad coil. (Goes bad when warm .... ok when cold.) ==== Probably right. I had that problem on one of my old 454s. To make it worse, some genius decided that the coil should be mounted very near the exhaust manifold. The dummies who built my old Proline put the live well right above the coil, with no sealant. Took me two coils to figure out where the problem was. I think Eisboch nailed it. At the price of coils, it's well worth giving a replacement a try. John H. ---------------------------------------- Maybe. Educated guess due to similar experience. The fact that the OP says it runs fine at any speed for about half an hour makes me think it's probably not carburetor related. Sounds more like something heats up and fails which is more likely an ignition problem and the coil (especially if it's older) is suspect. Had the same thing happen one morning on the old '82 Century. Mrs.E. and I were taking a ride up to Boston Harbor from Scituate. It was probably just about in the same timeframe that the engine sputtered and died, right in the path of one of the Boston to Provincetown high speed boats that was just getting up on it's hydrofoils. It blew by us in a rush with it's horn blaring. After sitting dead in the water for a while the coil cooled off enough to restart the engine and we limped our way slowly back to Scituate at idle speed. Both times mine went bad out in the middle of Chesapeake Bay. Boat started and ran fine - and then just seemed to bog down and die. That $100/year tow boat insurance was a good investment. John H. -- Hope you're having a great day! |
| All times are GMT +1. The time now is 09:00 AM. |
|
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright �2004 - 2014 BoatBanter.com