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| 2006 H180 4.3L Penta Smoke https://www.smwebhead.com/phpBB3/viewtopic.php?f=11&t=13296 |
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| Author: | dhays [ Mon Aug 04, 2014 8:05 pm ] |
| Post subject: | 2006 H180 4.3L Penta Smoke |
Hey everyone, looking for a bit of advise. Had the boat out this weekend and it seemed to be running great. The boat is a 2006 H180 with Volvo Penta 4.3L, stock everything. After several passes towing a wake boarder we noticed a bit of smoke coming out of the transom/outdrive. This was accompanied by a faint smell of oil. Its something I haven't noticed in the past. As per the gauges, temperature was good, oil pressure was good, idle was maybe just a bit low on the rpm side. We checked the oil and it looked great. I think I might just be paranoid but wondering if there is anything else i should be checking. Ive been told the drive coupler could case some smoke like this? Thanks! |
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| Author: | NiagaraChillin [ Mon Aug 04, 2014 10:55 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
What color was the smoke? Black usually means too rich of fuel, blue means burning oil, and white means overheat. |
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| Author: | rpengr [ Tue Aug 05, 2014 2:10 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Could be exhaust manifolds. At 8 years old, this is not too likely in a fresh water boat, but right on schedule with a salt or mixed use boat. Clogged water passages (rusted) in an exhaust manifold can cause the rubber exhaust hoses to burn inside. This can happen even with normal engine temperatures... if one is more clogged than the other, then water will exit the engine more on the good side, and overheat the bad exhaust manifold. Have you checked temperature of the manifolds? But then, burnt rubber smells a lot different than oil, and can hardly be described as a faint smell, so this is just one idea to look at. |
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| Author: | LouC [ Tue Aug 05, 2014 2:29 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Get yourself a Radio Shack IR temp gun, it is a very good diagnostic tool. I have 2 one for the garage and 1 I leave on the boat. With this you can measure the temp of your exhaust manifolds, risers and hoses with out burning your hands. It is possible for the exhaust system on an inboard to run hot, when the engine itself is not overheating. Sometimes you will see steam coming off the water where the exhaust is coming out under the transom because the temp of the water getting exhausted is so much hotter than the water in the lake/bay. I saw this once when I had the problem with clogged water intakes, but I was also seeing higher than normal temps on the gauge, but not overheating. After running on plane, I see 115-125 on the one piece manifold/riser units I have on the old 4.3. After slowing to idle they cool down to about 95 or so in few minutes. If they are too hot to keep you hand on the temp is probably higher than 130*. |
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| Author: | dhays [ Thu Aug 07, 2014 6:53 am ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Thanks for the help guys. I'll keep a close eye on it this weekend and keep you posted. I'll try to get my hands on an IR temp gauge as well. The smoke looked more white then anything, tough to say if it was bluish. If we get the same problem this weekend, Ill for sure take better note. Thanks! |
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| Author: | NiagaraChillin [ Thu Aug 07, 2014 3:37 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Is the smoke coming from outside the boat, or inside? |
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| Author: | dhays [ Thu Aug 07, 2014 5:59 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Only from outside of boat. Open engine cover, no smoke, motor sounds healthy. |
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| Author: | kd4pbs [ Fri Aug 08, 2014 11:02 am ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
It certainly isn't the drive coupler then. |
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| Author: | dhays [ Fri Aug 08, 2014 3:02 pm ] |
| Post subject: | Re: 2006 H180 4.3L Penta Smoke |
Awesome! Just picked up ir temp gun. I'll post any findings tomorrow. Thanks! |
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