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New Member |
For starters let's keep things simple.
 Remember we have some members new to engineering. There is no such thing as a dumb answer. Be as thorough as possible describing how you would test for a no spark situation and the components that are controlled by spark. I will be using basic component knowledge that is common to either the new Mercury's or the Evinrudes. The components differ a little but, the theory is the same. I will reply with proper testing information and correct answers in a week! Here is the scenario We are out on patrol and we lose the starboard motor. You think it might be a spark problem. How would you check this while underway? Good Luck! (MK2 Taylor) This message has been edited. Last edited by: SnipePSU309, |
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New Member |
Is the NO SPARK anything like the ALL SPARK????
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New Member |
If were keeping things simple....then there is definitly such a thing as a dumb answer!! I hear them everyday in the field, U/W and on qual boards.
MK1 |
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New Member |
What are we trying to troubleshoot? I dont see any problems.
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New Member |
Good afternoon,
I am the engineering training petty officer for PSU 309. My credentials are as follows ASE certified master technician, Mercury Outboard/IO specialist technician, Evinrude and Yamaha outboard certified technician. I hold engineering qualifications on 41 UTB'S as well as small boats. I am using this forum as a training platform for my engineers so if they feel threatened or dissed they will not participate. I have stated "There is no such thing as a dumb answer" and I truly believe that. Please feel free to partake in our discussions but, I ask that you be respectful. We have a common goal and that is to train and to be the best! Thank you for your undestanding |
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New Member |
Describe how you would test for a no spark situation and the components that are controlled by spark. My unit uses either 175 Vindicators or the new 185 JPH Mercury outboards for a power source. You MUST BE FAMILIAR with outboards to answer the question.
Good luck |
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New Member |
No Spark
Simplest steps (In my opinion) 1.Check your Battery first 2.Distributor 3.Coil Packs/Plugs and Wires...If they are in the wrong firing order it "could" act like its not getting spark but its firing in the wrong order 4.Ignition 5.Starter 6.ECM/Computer Then of course there are things like fuses and such that should be checked, wire chafing etc...... |
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New Member |
Think this is a great thing that you are doing MK2 but have you given any thought on posting on the Naval Engineering Forum? Not saying that military.com is a bad place to post on but this website that I am talking about is more platform specific. Have a look http://webapps.mlca.uscg.mil/vdiv/NEForum/index.cfm Keep up the great work!  |
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New Member |
Thank you for your comment and advice. I will look into it. I tried a couple of different platforms and I thought this might be best.
I appreciate your input! I do believe the site you are talking about has to be viewed on a coast guard computer? My guys and gals need to be able to view this at home as (homework) |
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New Member |
Marine JRM nice effort.
Why is it important to check the battery? Our boats have 4 batteries. One cranking battery for each engine, one for electronics and an auxiliary battery. What should the proper voltage reading be?? We are using DFI (direct fuel injected)motors. How would you check for a non-spark problem? Boat engineers carry some spare parts (HINT) and tools (HINT) with them onboard. Remember the scenario we are out on patrol and we lost a motor. We think it is a spark issue. How would we check this while underway! Keep up the effort! MK2 T |
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New Member |
Well if I remember, there is a little tool that can check for spark on up to 4 plugs at once. Has adjustable gap up to 1/2". If spark jumps the gap then spark not the problem. But wait probably would not have that in the underway kit. But I would imagine that a few spare plugs, along with tools to change out would and should be in an underway kit. So if it was me I would remove a plug. Then plug it back into the plug wire, ground it on the engine. Turn engine over and check for spark across plug gap. Got spark, then your troubleshooting is have done, so go look for fuel problem. If no spark good your troubleshooting has just began.
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New Member |
[quote]Well if I remember, there is a little tool that can check for spark on up to 4 plugs at once. Has adjustable gap up to 1/2". If spark jumps the gap then spark not the problem. But wait probably would not have that in the underway kit. But I would imagine that a few spare plugs, along with tools to change out would and should be in an underway kit. So if it was me I would remove a plug. Then plug it back into the plug wire, ground it on the engine. Turn engine over and check for spark across plug gap. Got spark, then your troubleshooting is half done, so go look for fuel problem.
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New Member |
Stick it on your tongue.
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New Member |
Nice reply from an E-6
Way to be a good example. Your shipmates must be proud! Private message me if we need to continue this childishness |
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New Member |
I'm sorry man, i was just kidding around, didn't mean anything by it, don't take it so hard buddy. I do think this is a good thing your doing for your guys though, keep it up and I'll keep my remarks professional from now on. Message me if you have any other questions or concerns.
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New Member |
No problem,
I appreciate the comment. Like anything new if my guys feel threatened or embarrassed they will not participate. All remarks are welcome and it is a great way to learn from each other. |
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New Member |
Well if I were underway and thought it might be a spark problem, there is a simple test. Remove a spark plug keep it in the wire and hold it close to the engine block. Have someone turn over the outboard and watch for a spark across plug gap.
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New Member |
Would you just check one plug?? What components control Spark? How much voltage does the ECM need to obtain proper spark output and to crank the motor?
Welcome Joe! |
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New Member |
Apparently you are having difficulty understanding the purpose of the forum. Maybe you forgot what it felt like to try something new? My ONLY intent was to make my crew feel comfortable about participating. I used My space for an engineering training platform. It worked well for awhile till some of the guys sites got phised. Please feel free to participate if you wish but, don't undermine my intentions nor put words in my crew's mouth. Maybe you should try reading things a second time through before posting.
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