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2014 Yanmar Diesel engine with 160 hours blowing heavy black
2014 Yanmar Diesel engine with 160 hours blowing heavy black smoke, and no power. … read more
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Jason
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Vocational, Technical or Trade School
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I have an older 3208 NA 210 HP caterpillar in my commercial
I have an older 3208 NA 210 HP caterpillar in my commercial work boat. This week it starting losing high rpm power and was blowing black smoke out of the port side. We had an old Kenworth a long time … read more
K. Kergan
K. Kergan
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I have blackfin 31 two yanmar 6ly-ste at 1600 rpm starts smoking
I have blackfin 31 two yanmar 6ly-ste at 1600 rpm starts smoking heavily black and will not go over 1800 rpm still smoking black profusely.… read more
Malta Tech
Malta Tech
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Cruising at just over 3000 rpm (after many hours fine cruising)
Cruising at just over 3000 rpm (after many hours fine cruising) we got a sudden hissing sound from the port engine, black smoke from exhausts thereafter . I suspect failure of the turbo. Engine runs f… read more
orcamarine
orcamarine
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Need help: Engine is Yanmar 4LH DTP (only 400 hrs on meter).
Need help: Engine is Yanmar 4LH DTP (only 400 hrs on meter). The Port engine will go up to 3,600 rpm´s and cruise nicely at 3000. The Starboard will not exceed 2800-2900 rpm´s under power. The engine … read more
dieselhub
dieselhub
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I have a 466 w/ 480 volvos, after running 4 to 8 hrs soot builds
I have a 466 w/ 480 volvos, after running 4 to 8 hrs soot builds on transom. Had injectors replaced, tanks polished, filters changed regularly, props tuned & bal. Engines only have 500hrs. Bottom clea… read more
Jason
Jason
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I dont have the model # XXXXX me but it is on a 1986 hunter
I don't have the model # XXXXX me but it is on a 1986 hunter sailboat . Fifteen hp engine. Last night comming in from a night sail, noticed smoke comming from exaust or back of boat. It possably came … read more
Scott
Scott
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I have a Luhrs 28 with twin Yanmar 4LHA-STE 240 HP diesels.
I have a Luhrs 28 with twin Yanmar 4LHA-STE 240 HP diesels. My port motor has given me cooling problems since new in 2006. I have done all the needed mainenance suggested by Yanmar. I can cruise at 30… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
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I have 2004 Yanmar 315 6LPa diesells with 965 hrs. well maintained.
I have 2004 Yanmar 315 6LPa diesells with 965 hrs. well maintained. The Starboard engine sounds and runs like a new sewing machine. The port engine runs fine.. 3800 rpm vs 3800 starboard. but sounds r… read more
K. Kergan
K. Kergan
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I have a yanmar 315 hp turbo diesel in my mainship pilot 30.
I have a yanmar 315 hp turbo diesel in my mainship pilot 30. The exhaust elbow had to be removed to service the generator. I now have white smoke leaking from under the fabric heat shield on the elbow… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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We were beating to windward yesterday against current, waves
We were beating to windward yesterday against current, waves and 17 knots of wind no sail. It was a shakedown cruise of sorts. We have a small yanmar. It is a 9h the 1GM-10. When we went to full throt… read more
Jason
Jason
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Have a Yanmar 2-cylindar diesel taht wont rev past 2500 RPM.
Have a Yanmar 2-cylindar diesel taht won't rev past 2500 RPM. Replaced filters and added cetain to fuel. Clean Injectors next step?… read more
Yachtwork
Yachtwork
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I have a pair of yanmar 6LYA-STE engines. The turbo on the
I have a pair of yanmar 6LYA-STE engines. The turbo on the port engine is very slow in comming up Starbord engine turbo works just fine. Both engines put out a LOT of smoke. Had a fellow clean the aft… read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
1,031 satisfied customers
Dear Sir My yanmar 35 responds adequately at low revs, but
Dear Sir My yanmar 35 responds adequately at low revs, but when I increase the revs black smoke spews from the exhaust and what appears to be globules of soot resulting in power loss. What must I do t… read more
Yachtwork
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My 2001 Power cat has Yanmar 350s in it. I do not have any
My 2001 Power cat has Yanmar 350's in it. I do not have any manuals and would like to know the cruising RPM and Max RPM… read more
Yachtwork
Yachtwork
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I have a 2002 Sabreline 36 Flybridge Cruiser with twin Yanmar
I have a 2002 Sabreline 36 Flybridge Cruiser with twin Yanmar 370 engines. During a recent cruise, I noted that a lot of gray smoke was collecting a couple hundred feet behind the boat while traveling… read more
Diesel Boat Doc
Diesel Boat Doc
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121 satisfied customers
I have a Yanmar 3GM30F diesel in my 1996 Beneteau Oceanis
I have a Yanmar 3GM30F diesel in my 1996 Beneteau Oceanis 321. The engine recently started running rough. It runs Ok at under 2000 rpm but doesn't have the same power at higher RPM and puts out black … read more
Diesel Boat Doc
Diesel Boat Doc
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I have a 25 year old Pearson 30 with a Yanmar 2GMF. Recently
I have a 25 year old Pearson 30 with a Yanmar 2GMF. Recently noticed that I could get 3400 RPM when in neutral but can only get 2500-2600 RPM under load. This is accompanied by black smoke and soot in… read more
Wayne
Wayne
Grand Pa
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