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Transmission has broken down and tech indicated I need new
Transmission has broken down and tech indicated I need new or rebuilt transmission. I currently has a Hurth HBW50-2R on it . The Engine is a Universal M340 deisel. Looks lile that transmission was rep… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I am on freshwater lake in N.Texas and I looking at possibly
I am on freshwater lake in N.Texas and I looking at possibly buying a 1985 Benetuea 35 with a Volvo Penta MD 2030 engine. Incredibly the sailboat only has a 119 hours ! I have always had Yanmar motors… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I have a question on an Yanmar 440 6LY-STR, Anyone out
Twin 2007 Yanmar 440 6LY2-STR on a Silverton 43 Sportbridge. Boat has approx 500 hours. Oil changes every 100 hours, zincs, etc. One of the engines (not sure which yet) has begun screeching, very hi-pitched, when brought up off of idle. Sound only goes away when temp comes up. The boat has underwater exhaust. I have never had the valves adjusted or any other maintenance other than oil, filters, etc. Questions are: 1) What might be causing this screeching? Turbo bearings? Valves? I know that some of the 6LY2s had bad valve systems. When I purchased the boat, I did confirm that we got 3300 rpms at full throttle, but that was gauged by Faria Analog Tachs.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
Can I use a transmission that is paired with a 350, 454
Can I use a transmission that is paired with a 350, for a 454 motor? The transmission is : ZF Hurth 450-A2, 2.03:1 ratio. I'm about to purchase a boat from a guy who says he put the 454 in the boat fo… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
My 30 hp yanmar when put in fwd or reverse at low power will not drive, but makes a shudde
My 30 hp yanmar when put in fwd or reverse at low power will not drive, but makes a shuddering sound. When higher power is applied it works and no shudder. After several goes at this it usually all wo… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Yanmar 3HM35F diesel, KBWIOE gear box: :I have a sailboat
: I have a sailboat with inboard Yanmar 3HM35F diesel. The transmission box KBWOE. Transmission gets knocking noise only on forward gear. On neutral and reverse is OK. What should I do?… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
2 questions First off I have a 225 merc black max outboard
2 questions First off I have a 225 merc black max outboard I believe to be a 1994. Started off today cruising for about 15 minutes or so and all of a sudden when I tried to throttle up a bit more to s… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
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Mercruiser inboard/outboard engine runs well at idle and above
Mercruiser inboard/outboard engine runs well at idle and above 2000 rpm. When accelerating gradually no problem. However when accelerating rapidly get a rattle and temporary loss of some power until r… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I am looking at buying a 1998 350-390 Mainship Trawler
I am looking at buying a 1998 350-390 Mainship Trawler powered with 2 Yanmar 170 HP 4LH-DTE diesel Engines with 7-800 hours. Some of my questions are as follows: Is this engine and parts for this engi… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I own a 1983 30ft express sailboat with a yanmar 2gm diesel
I own a 1983 30ft express sailboat with a yanmar 2gm diesel which is running fine however on a recent trip return after extended motoring (10 miles) starting noticing a slight oil smell and later a st… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Yanmar 2GM20 transmission gear clatter. Idle and low rpm in
Yanmar 2GM20 transmission gear clatter. Idle and low rpm in forward. Goes away with increase in rpm. No rattle in reverse. What's the deal?… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1992 8HP Johnson outboard with extended shaft for
I have a 1992 8HP Johnson outboard with extended shaft for my sailboat. It was running fine last season. Started to change the lower unit lube and only water came out. Took to dealer and they installe… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Not sure my question was received. My Yanmar 2gm is making
Not sure my question was received. My Yanmar 2gm is making knocking sounds above 2000 RPM in forward… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
Really Online Q&A Thats cheering. I am seeking a new
Really? Online Q&A? That's cheering. I am seeking a new prop for my Yanmar 2GM20 17 x 12 x 1" RH. Does anyone know where it can be ordered off the shelf? Thanks, Ernie… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
1,042 satisfied customers
I have a Yanmar YM30 diesel in my newly-acquired 32 ft sailboat.
I have a Yanmar YM30 diesel in my newly-acquired 32 ft sailboat. Previous owner had just installed this "nearly-new" engine with FWC and V-drive, all salvaged from another boat. (original installation… read more
Captain George
Captain George
Bachelor's Degree
3 satisfied customers
I installed a new 70 hp Yanmar diesel into my 48 sailboat
I installed a new 70 hp Yanmar diesel into my 48' sailboat less than two years ago. When the engine is just started up and running for under an hour I can get my RPMs up to 3200 and hull speed up to 8… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
1,042 satisfied customers
I have a seized 2000 Yanmar 4JH3E diesel engine, one of two
I have a seized 2000 Yanmar 4JH3E diesel engine, one of two with 7K hours, in my Sailing Catamaran. This Yanmar model is out of production ( change in emission standards). Was told by dealer I would n… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
1,042 satisfied customers
I have a 1971 Johnson 140hp outboard that idles with a ...
I have a 1971 Johnson 140hp outboard that idles with a minor skip from time to time and is sluggish on take off. Once it reaches 3000 rpms, it take off to full rpm. Fuel pump is brand new and carbs we… read more
JUST-IN-TIME
JUST-IN-TIME
CERTIFIED MARINE/PWC TECHNICIAN
Vocational, Technical or Trade Scho
74 satisfied customers
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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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