Boat

Have Boat Questions? Ask a Boat Repair Expert.

Ask an Expert,
Get an Answer ASAP!

Steps to Trouble shoot motor...Process of elimination..I…

Customer Question
Steps to Trouble shoot motor...Process...
Steps to Trouble shoot motor...Process of elimination..I guess..I have tried to rule things like Fuel pump ,filter , carb, Distributor,...How about a blown intake manifold gasket ???,Lose or tight valves...I am looking for some direction I am running out of ideas..I realy think it all started with bad Gas ??
Submitted: 2 years ago.Category: Boat
Show More
Show Less
Ask Your Own Boat Question
Answered in 8 hours by:
2/14/2016
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,417
Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
Verified

Hello. My name is Tan.

Could I get more info on what you are working on please? Make model and serial number please?

Ask Your Own Boat Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a marine mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dominick Your Own Question
Dominick
Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1,009
1,009 Satisfied Customers
Experience: 25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

Dominick is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

Ted G.

Ted G.

Rigger, Diagnostician

704 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

17,310 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,417 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,729 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

< Previous | Next >

Related Boat Questions
I have a 77 Crusader 350 (454cid). Was running really rough.
I have a 77 Crusader 350 (454cid). Was running really rough. Low vacuum at idle, vacuum fine at 1500RPMs. Checked everything (compression, spark, fuel). Decided to have card rebuilt. Now engine will r… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
Mercury 3.0 97 stingray 19ft. Got the motor running well in
Mercury 3.0 97 stingray 19ft. Got the motor running well in idle and on water hose. Went to take her out and she won't get above 2k rpm and maybe 10 mph (speedometer doesn't work). Shifts into drive f… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I have a 2003 Mercruiser 5.0, it developed an engine miss last
I have a 2003 Mercruiser 5.0, it developed an engine miss last year, I replaced the plugs and wires, coil rotor distributor cap and sensor inside of the distributor, new fuel filter / water separator,… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
hino 135 overheating white exhaust at high rpm, cools down a
hino 135 overheating white exhaust at high rpm, cools down at low rpm exhaust normal--i have a new to me 89' bayliner 3218 w/ twin hino 135's. i run them typically at 1800 - 2200 rpms and they run per… read more
Jeremy R
Jeremy R
1,069 satisfied customers
1997 Seadoo Babardier Twin rotax marine, The right engine
1997 Seadoo Babardier Twin rotax marine, The right engine is starving for fuel. Any idea what would cause this? Is there a single fuel pump or does the engine pull the fuel? That engine runs but at hi… read more
Jeremy R
Jeremy R
1,069 satisfied customers
Have 15 horse merc 4S electric 4 stroke. Will not start
Have 15 horse merc 4S electric 4 stroke. Will not start, engine will fire then stop. New gas, haven't checked the plugs. New fuel filter and gas shoots out the fuel pump when turning over the engine. … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
My 72 CC Lancer/Q307 engine was fine at the start of the season.
My 72 CC Lancer/Q307 engine was fine at the start of the season. Now I've learned the engine is hydra locked due to water in 5 pistons. I recently replaced only the impeller, due to my own stupidity, … read more
Tan
Tan
MerCruiser Certified Technician
11,417 satisfied customers
I HAVE TWIN MERCRUSER MIE 7.4L WEBER 4BB CARBS AND ELECTRIC
I HAVE TWIN MERCRUSER MIE 7.4L WEBER 4BB CARBS AND ELECTRIC CHOKE. STARBOARD ENGINE STARTS EASY BUT INCREASES RPM TO 3000 AS CHOKE OPENS REBUILT CARB & STILL HAVE PROBLEM MATCHED STARTUP WITH PORT ENG… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
i have a 2003 60hp mercury bigfoot rebuilt carbs set float
i have a 2003 60hp mercury bigfoot rebuilt carbs set float from carb body at 9/16 as service manuel indicated. set linkage to service manaul instructions set idle timing to from 2 degree btdc and two … read more
Tan
Tan
MerCruiser Certified Technician
11,417 satisfied customers
First time boater, SeaRay Seville-88, 175hp 4.3 ltr GM v6,
First time boater, SeaRay Seville-88, 175hp 4.3 ltr GM v6, Mercruiser Alpha I. Seem to be having fuel issue, boat was stored for two seasons before I purchased. Fuel separator installed, full tune-up,… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
boat gm 4.3l V-6 i have a 4.3 vortec marine motor in my boat.
i have a 4.3 vortec marine motor in my boat. It is about 3 years old with less than 100 hours on it. It has a holley carb with the vacuum taheoffs plugged. The boat ran fine then all of a sudden it wo… read more
Jeremy R
Jeremy R
1,069 satisfied customers
I have a 2005 Kawasaki stx 1200r. It sat for 1 year. It ran
I have a 2005 Kawasaki stx 1200r. It sat for 1 year. It ran fine for about three hours and then started bogging down at high speed. I also noticed that it does not appear to be using oil. Is this a cl… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
This answer in no way helped our program. I am not satisfied
This answer in no way helped our program. I am not satisfied with this answer since the suggestion had already been done. New fuel filter, hoses, clean-out, fuel pump, spark plugs, etc. We checked the… read more
Tan
Tan
MerCruiser Certified Technician
11,417 satisfied customers
I have a murcury marine tracker 50hp. It sat for two years.
I have a murcury marine tracker 50hp. It sat for two years. I drained all the gas from the tank and put in fresh. replaced the fuel filter, pulled the drain plugs on the carbs and drained out the old … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Why does my engines RPMs fluxuate while I am at idle I
Why does my engines RPMs fluxuate while I am at idle? I have a 83 ski nautique boat with a Chevy 454 (pleasurecraft) engine in it. I just finished replacing the gaskets and putting a new edelbrock air… read more
Jeremy R
Jeremy R
1,069 satisfied customers
1985 4/cylinder mercruiser 470 with a closed loop cooling system
1985 4/cylinder mercruiser 470 with a closed loop cooling system heat exchanger. Their is Lake water in the crankcase. The internal cooling section is not contaminated or loosing antifreese. Could it … read more
Pappy&#039;s Sales and Service
Pappy's Sales and Service
Vocational, Technical or Trade Scho
586 satisfied customers
2005 yamaha 4 stroke 115hp, truns over no start sputters a
2005 yamaha 4 stroke 115hp, truns over no start sputters a little when shooting starting fluid in. How do you check for proper fuel pump operation and proper injector firing? How do you clean the inje… read more
Larry B.
Larry B.
Marine Service Tech
High School or GED
574 satisfied customers
I have a 1987 js 550 stand up that is compleatly stock. It ...
I have a 1987 js 550 stand up that is compleatly stock. It starts right up and runs great for a while and then it will bog down and barely idle, this lasts 10 to 30 seconds then it suddenly stops bogg… read more
pwc tech
pwc tech
Bachelor's Degree
78 satisfied customers
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.

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.

Show MoreShow Less

Ask Your Question

x