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When I started my 150 FETO 6GA it blew a big cloud of smoke.
When I started my 150 FETO 6GA it blew a big cloud of smoke. Never done that before. Seemed to stop smoking as we went home doing 3200 rpm. … read more
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I have hino twin 135 turbos starboard engine wont start
i have hino twin 135 turbos starboard engine wont start checked all the main stuff just not turning over … read more
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I asked you a question a couple weeks back about the
Hello Charles, I asked you a question a couple weeks back about the operating temps of my 2005 150xr6. You helped me narrow down that the exhaust tuner was loose and that was probably causing my eleva… read more
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I have a 1993C Ray twinscrew 454 engines getting smoke when
I have a 1993C Ray twinscrew 454 engines getting white smoke when I start the engine up out of my starboard engine what would cause that ? … read more
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I have 2005 Cummins 480CE's in a Sea Ray. Last year my port
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A couple of years ago my port engine had a sudden loss of
A couple of years ago my port engine had a sudden loss of power. It would consistently run -200 rpm lower than the starboard engine at WOT. WOT at the dock both engine run at 3100 (gov) but under powe… read more
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Recently bought a boat with twin Volvo Penta KAMD300. Both
Recently bought a boat with twin Volvo Penta KAMD300. Both motors make a loud squiky-whistling noise for a moment when when boat accelerates.As it gaining speed the noise disapears. The seller told me… read more
Jason
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Hi Jason I have a 2008 150 optimax that stalls underload when
Hi Jason I have a 2008 150 optimax that stalls underload when in gear but will clear up when you run it wot then bring it back to idle again . But if you leave it about 15-20 minutes at idle it will b… read more
Jason
Jason
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Vocational, Technical or Trade School
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Jason, I have 1987 Bayliner with 454 engines. It runs well
Jason, I have 1987 Bayliner with 454 engines. It runs well at normal speeds and engine temperature seem fine on both engines. However, when you go at full throttle at 2800 rpm there is a white/gray sm… read more
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I have twin D3 diesels on my power cat. They would both always
I have twin D3 diesels on my power cat. They would both always pull 4,000 rpm at wot. recently, however, starboard won't pull more than 2,500rpm. Temps are good at about 180 degrees, fuel consumption … read more
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Mercury 225 efi saltwater: I just bought a 1996 merc 225 efi
I just bought a 1996 merc 225 efi saltwater series and at 20 plus knots it cuts power down and starts to smoke or steam until I shut it off for a minute replaced thermostats temp is around 125 f at id… read more
Charles
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I have a 2008 Volvo penta 135 hp inboard engine. I took it
I have a 2008 Volvo penta 135 hp inboard engine. I took it out for the first time a week ago. I had to travel at 6mph for about an hour cause of speed limit. Once I was able to open up the temp alarm … read more
orcamarine
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I have a volvo Penta 5.7 GL-A with about 200 hours on it.
I have a volvo Penta 5.7 GL-A with about 200 hours on it. I had the impeller replaced about 75 hours ago. I started it for the first time this year. It started perfectly and ran normally. I had the ea… read more
Tan
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We just purchased a boat powered by 454 big block chevy engines.
We just purchased a boat powered by 454 big block chevy engines. At idle it appears to run and sound fine. Under load the exhaust emits a steam appearing cloud that doesn't disappear after the engines… read more
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i have a dd 8v53 in a 30 egg [custom job] ,temp gauge reads
i have a dd 8v53 in a 30' egg [custom job] ,temp gauge reads 100 or less at idle, when i bring boat to plane [2200 rpm] and then back off to below 2000 rpm temp rises to 180 and stays there.if i open … read more
Captain Dave
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Twin inboard 454 crusader 7.4 XLs starboard engine seems to
Twin inboard 454 crusader 7.4 XL's starboard engine seems to put out more steam than the port engine. Nothing obviously overheating. Temps at the gauges 175. Any thoughts… read more
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Dominick, I am having a similar issue with my 1998 7.4Gi volvo
Dominick, I am having a similar issue with my 1998 7.4Gi volvo penta engine.. At idle the temp is below 175 degrees, at 3000 RPM's it climbs over 175 to almost 180. At WOT,it will overheat. So far I h… read more
shane j forrest
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I have a Volvo TAMD 40B on a Nimbus 3000 boat. All temps, pressures
I have a Volvo TAMD 40B on a Nimbus 3000 boat. All temps, pressures OK at all running speeds. but at 3000 revs and above the engine exhausts white smoke. Below 3000 revs it is clear. Small amount of w… read more
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

22,043 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,409 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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