Boat

Have Boat Questions? Ask a Boat Repair Expert.

Ask an Expert,
Get an Answer ASAP!

Tan I have a mercruiser 5.0 l efi on a crownline that is…

Customer Question
hi tan I have a...
hi tan I have a mercruiser 5.0 l efi on a crownline that is running rough just changed the wires and distributor cap
I hear a rap and I cant tell how much oil is in the engine. will no oil make it run rough
Submitted: 3 years ago.Category: Boat
Show More
Show Less
Ask Your Own Boat Question
Answered in 2 minutes by:
6/28/2015
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,412
Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
Verified
Hello.Yes the lifters will collapse and you will hear valve train noise. Do you show oil pressure? Did you replace the wires one at a time? Is it possible you got some wires crossed? The firing order is 1-8-4-3-6-5-7-2 it real easy to get 5 and 7 mixed up.
Ask Your Own Boat Question
Customer reply replied 3 years ago
I changed them one at a time. the distributor cap is way in the back. can I shoot the timing gun on the front of the engine? then how do I get it in time do I move the cap as its running
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Correct turn the distributor. Now there is a timing procedure for this engine I will need the engine serial number please?
Ask Your Own Boat Question
Customer reply replied 3 years ago
0moo3408
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
You need to have a scan tool or the timing tool to set the timing on this engine. We can do a jumper if you don't have the scan or timing tool. Do you know where the DLC(data link connector) is located on this engine? It will be close to the ECM with a cap on it.
Ask Your Own Boat Question
Customer reply replied 3 years ago
is this the piece on the wiring harness the has a plug with a loop on the end? if it is I removed it do to melting and just put a wirer connection in its place
Customer reply replied 3 years ago
ill try it. but what if I can't get it to ide? is it safe to do this before I get an accurate oil level? if I have oil pressure, can I assume that I have oil in the block? where does the oil tube enter the block? Is the nut brass? easy to get to?
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
The engine has to idle correctly to set timing. If the engine won't idle then you have a bad IAC (idle air control). If you crack the throttle open a little will the engine run? The dipstick goes into the oil pan through a small hole in the block just above the oil pan. http://www.boats.net/parts/search/Merc2/Mercruiser/5.0L%20EFI%20-%20%28GM%20305CID%20V8%29/0L340000%20THRU%200M299999%20%281999-2001%29/Oil%20Pan%20And%20Oil%20Pump/parts.html
Ask Your Own Boat Question
Customer reply replied 3 years ago
if I crack the throttle open a little yes it will stay running. but wants to quit. I have to keep giving it more gas to keep it running
is it a brass nut on the oil dip stick tube? it shouldn't be to bad to get out would you say?
Customer reply replied 3 years ago
are all of these engines standard rotation I have twin engines on my crownline and this engine is the starboard engine
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Yes the rotation is changed in the drive. The engines are standard rotation left hand.
Ask Your Own Boat Question
Customer reply replied 3 years ago
where can I buy the software to diagnose these engines like you mechanics have? its just a laptop with special plugs and software?
Customer reply replied 3 years ago
are these oil tubes hard to remove?
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Here is a link to get the software. You might have to go to Mercruiser to get the software also. I use Mercruiser software with their scan tool. http://www.rinda.com/ This company makes allot of the equipment for Mercruiser. If they are broken off flush with the engine block yes. Use some heat if any of the tube is sticking up. The biggest problem is access.
Ask Your Own Boat Question
Customer reply replied 3 years ago
ok . your a very smart guy. I am an expert with oil fired eating systems. How do I work for your company part time?
Customer reply replied 3 years ago
can I request you the next time I sign on?
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Yes you can. Just ask for me or post my name in the question I will get the question. Go to the original page when you first started and you can apply their. They have many categories. Go to the bottom of this page and go to How to become an expert. http://www.justanswer.com/HomePageIntegration.aspx# ***** back if you need further assistance. Thank you....Tan
Ask Your Own Boat Question
Customer reply replied 3 years ago
thank you
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Your welcome.............Thank you......Tan Please don't forget to positively rate me as that is the only way I get credit for helping you...Thank you........Tan
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 Tan Your Own Question
Tan
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,412
11,412 Satisfied Customers
Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Tan 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

11,412 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
98 bayliner with 5.0 mercruise, itis a carburater, and it is
98 bayliner with 5.0 mercruise , itis a carburater , and it is electric fuel pump , does the ignition has to be on for the fuel pump to pump gas , and how does it work while the engine is runing , is … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
We have an alarm beeping, Crow line 220, Motor is 5.0
We have an alarm beeping JA: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I have a 1999 mercruiser 5.0 mfi serial # ***** The audio
i have a 1999 mercruiser 5.0 mfi serial # ***** The audio alarm is sounding as soon as you start it up. The gauges read oil psi about 38 and water temp 170 when at operating temp. The outdrive oil is … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
2005 Mercruiser 5.0 MPI. The boat sat a year and the
2005 Mercruiser 5.0 MPI. The boat sat for over a year and the gas was not drained. We drained most of the gas, added new gas, stabilizer and made sure the battery was fully charged. It turns over and … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
I have a 99 Sea Ray 215 ec with a 5.0L Mercruiser w/o EFI.
I have a 99 Sea Ray 215 ec with a 5.0L Mercruiser w/o EFI. Thunderbolt V ignition. The audio alert is sounding and I am trying to pin down the problem. I took off the leads from the gear oil res and a… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
1999 Mercruiser v8 5.0 EFI timing procedure needed. What
1999 Mercruiser v8 5.0 EFI timing procedure needed. What is the correct timing procedure for this engine? Thanks… read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
1,031 satisfied customers
I have a 2002 Mercruiser 5.0 EFI. Last weekend the engine
I have a 2002 Mercruiser 5.0 EFI. Last weekend the engine all of a sudden wouldn't start. I could hear the fuel pump kick on for a few seconds when the key was turned to run, but when trying to start,… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 2004 sea ray 240 sundancer with a 5.0 efi mercruiser.
I have a 2004 sea ray 240 sundancer with a 5.0 efi mercruiser. When the engine is cold i have no power in the higher rpms and cant get the boat to plane out. The engine makes a popping sound like its … read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
1,031 satisfied customers
my v8 2003 5 liter mercruiser running rough at low idle. Took
my v8 2003 5 liter mercruiser running rough at low idle. Took off distributor cap.....corosion visbale. Will replace. cant seem to get rotor off. Do you just pull it up? Don't see a screw or anything … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
I need to know the timing and how to time a 262 ,and a 5.0
I need to know the timing and how to time a 262 ,and a 5.0 litre mercruiser,both are EFI. The serial# XXXXX the 5.o litre is 0L313489, and the 262 S# XXXXX XXXXX have already asked from a tech but he … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
I have an 87 wellcraft with mercruiser 5.0. Just taken out
I have an 87 wellcraft with mercruiser 5.0. Just taken out of winter storage. It seems to have several cylinders not firing. I replaced the cap, rotor and plugs. Next step is check wires. I also notic… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
Anything special I should know to replace pick up coil in 1998
Anything special I should know to replace pick up coil in 1998 7.4 Mercruiser Distributer?… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
I HAVE A 1975 MERCRUISER INLINE 6 ENGINE WITH NO POWER ON
I HAVE A 1975 MERCRUISER INLINE 6 ENGINE WITH NO POWER ON COIL . I'VE ALLREADY CHANGE COIL . WHAT DO NEED TO CHECK FOR? ENGINE DOES TURN AND THERE IS FUEL..… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,412 satisfied customers
I bought a brand new crownline about two years ago 22 ft with
I bought a brand new crownline about two years ago 22 ft with a mercruiser 350mag. Crownline has gone bankrupt and the dealership which is nearly 12 hrs away, is also being hard to work with and wont … read more
davesoutboard
davesoutboard
owner
Associate Degree
1,570 satisfied customers
Boat 2002 Crownline Engine 5.0 L MPI 305 CID Serial #
Boat: 2002 Crownline Engine: 5.0 L MPI 305 CID Serial #: 0M372591 Hours: 149 Recent Maintenance: New Plugs, Distributor Cap & Rotor, replaced fuel filter, inspected and cleaned spark arrestor, vacuum … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a 5.0 Volvo Penta Crownline which in the idle zone the
I have a 5.0 Volvo Penta Crownline which in the idle zone the unit will get a high pitched noise in the bilge... At rpm 600 and then engine runs very rough for 30 seconds to a minute and then engine s… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a 2001 Mercruiser 5.7l EFI with 400 hours that is running
I have a 2001 Mercruiser 5.7l EFI with 400 hours that is running fine but I see black soot on the water as well as see black smoke. I changed the plugs as they were black with soot. Additionally I cle… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
1999 crownline/5.0 mercruiser EFI/Bravo. Had weak/worn out
1999 crownline/5.0 mercruiser EFI/Bravo. Had weak/worn out batteries when lauched 1st time this season. Used a booster charger 75 amps. Left engine would start, but when I tried to start the right eng… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
374 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