Yanmar 3ym30 starter solenoid. A good idea, but poorly executed: the spliced wiring and microswitch were too wimpy to carry the current necessary to reliably drive the solenoid piston all the way home such that the starter contacts closed. Yanmar start switch problem | Sailing Anarchy Forums You must log in or register to reply here. It seems to me that it is unlikely that the Japanese would release an engine electrical package that was flawed by having inadequate solenoid leads . OK, so I replaced them with a set of 70mm2 leads made up with 6mm, 8mm and 10mm terminals as appropriate by a guy on eBay. You must log in or register to reply here. the starter and battery are less than year old. Started to put the battery back in and the neg post arched ,sparked like crazy. Now the thing that they don't have direct control over is the installation; in particular, the connecting leads from the battery to the starter motor. It may not display this or other websites correctly. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. It may not display this or other websites correctly. To begin with I would run a check on the power coming into the panel ( red wire to terminal 30 on the keyswitch assuming you have a keyswitch). A new starter solved the problem for like the first one or two starts, then it was back to the same issue. The problem was solved - Ouch! The brushes do need changing soon, so will find an auto bloke. Couldn't upload so I'll copy it. If for whatever reason the contacts fail to close or the main supply is missing the current taken can be very much higher than the switches are continuously rated for. You must log in or register to reply here. I think Jimi is the gen kiddy on these engines. Another thing to watch out forthere was a thread awhile back where the replacement solenoids had the two windings reversed in the plug. After dealing with work no work all week, I repaced the relay to the solenoid, no luck. Many manufacturers do not connect the wiring until the, http://www.cruisersforum.com/forums/es-130146.html. I need to go below and manually stop the fuel pressing the plunger on the solenoid. Also should I edit my wild ideas or leave in previous post? 385 hrs on the motor and the stern drive has failed three times. I tested the wires and found that when the key was in the run position red wire stays on, when you turn to the starting position wht wire stays hot until you switch back to run and then it goes off. x495 fuel solenoid overheating | Green Tractor Talk The starter on 1GM, 2GM and 3GM are, I am told, the same unit. This seems to have aggravated with the cold weather. Previously I had the solenoid "click" with no engagement of the starter. The instrument panel is the Yanmar bare bones panel with a Tach and idiot lights that don't seem to light up. I installed the second solenoid (<$20 at Radio Shack), as mentioned above, and it now starts 1 time, every time. Yanmar starting problem - Skidsteer Forum I replaced the solenoid, blah, blah, blah. The screw driver across the solenoid poles was a very handy solution while I tried the other options. Problem was related to the wiring harness being 10 years old. I have a Mustang 2040 that has a Yanmar 4TNE84 diesel that started to have problems last fall. There is a small relay bolted under the starter (not the starter solenoid) I found that it was a small ring connector crimp that was the problem this is the small wire from this relay to the starter. I then ran a new wire directly back from the starter switch to the starter solenoid, which fixed it totally. This machine does have a control module but I don't want to confuse the issue any more than I have. For a better experience, please enable JavaScript in your browser before proceeding. How do I determine if it is the switch or where the problem is? The Kubota is exposed which is nice for a visual check. I see what you are saying. Josh of All Trades 2.29K subscribers 28K views 6 years ago This video attempts to explain a basic starting circuit on a Yanmar 3HM35F. JavaScript is disabled. Thanks Chuck.that's exactly what I needed. It's not unusual for the solenoid to take around 35A to engage the starter and the relay byepass isn't a bodge it's redesigning around a known weakness. A small shot of fluid and away she would go.This motor has been great starting in the past .I drained fuel tank, changed filters, and put all new fuel with appropiate additives. You are using an out of date browser. I think we can call that an understatement. Check the plugs, or at least make sure you have power at the plugs. Yanmar 1GM starting problems have been a bit of a PITA on my boat for the last several years, although the engine has (so far) always started eventually.. What a fine mess. I've got an issue with my tractor. 1 Lake Nipissing, Ontario Jul 29, 2015 #2 I know this has been beat to death but now that I'm having the problem I want to get the most up to date solution. the key will trip this circuit. There is a known patch whereby adding another relay solves the degrading wiring issue. My engine Yanmar 2GM 20, engine panel simple type, 3 x warning lights ignition switch and buzzer, no tacho. You are using an out of date browser. I've had this problem on many production boats. Is that correct? For a better experience, please enable JavaScript in your browser before proceeding. Most common (in order of problem) 1. May 2, 2015 JTW, Here is an excerpt from the X495 TM2024 service manual that might help. I recently had what appeared to be similar starter problems with my Yanmar 2GM20F. I have had the same problem, with the indirectly cooled same engine, over many years. They become high resistance joints over time. Page 236 FUEL SYSTEM Fuel Injection Pump 16. JavaScript is disabled. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It also fixed several weird instrument/idiot light problems to boot. I did some sums for my boat (my theory at the time was that I was maybe losing too much power in the leads). I resolved the intermittent starting problem with my Yanmar 3gm30f (2004) by running a new #10 wire from the start push button straight to the solenoid, as other's have mentioned. It's the small white wire on the side terminal of the solenoid. What size cable would you need to use? drained his battery, you name it would not start . To my surprise the nut of the positive power wire on the solenoid was loose. Tazza ,thanks for the input, I checked the glow plugs and they are ok. this thing won't start warm or cold and I seldom used the pre heat when it was warm. Starting with a nominal 12V, the initial current will drop a single battery down to about 10V, other drops will be wiring, crimps, terminal contacts, connectors, power switches. What a pleasure. For a better experience, please enable JavaScript in your browser before proceeding. BlazNT Lawn Pro Joined Apr 26, 2012 Threads 28 Messages 6,973 Tried it and never had the problem again. Tentative solutions Location. There are hundreds, if not thousands of pages on the internet offering advice for this problem, ranging from total replacement to cleaning all connections. I found to my surprise that my leads had a combined length of 3 metres. Was it an Edinburgh refurbisher by any chance? Sorry can't attribute the stuff because I collected it over the years. They were connected through a 2 battery switch. RichH said: Common problem on Yanmar engines due to Yanmar NOT using tinned wiring, especially in the Starter PRIMARY circuit. Have a 3YM30 that had similar starting problems, sometimes it would start, sometimes not. I'd be happy to share the doc. with you if you are interested. A friend was telling me today his brother has a x595 and dash lights was going crazy , lost his hrs on the hr meter. Had boat hauled, refloated, no raw water flow. That was over a year ago and it still always starts on the first press. I changed the wire on mine for a heavy gauge and never had another problem.Very easy to do. Naturally I called Yanmar. Because 'parts of the starter button were melted' I suspect the main cable between the battery and the starter motor has become disconnected. hrs. scott. Possibly the 3 cylinder engine is too much for the starter? If your solenoid goes "click, click", it may be an indication it is not getting enough voltage to keep it engaged? From memory it is the white wire from the switch that does the business You can strip the solenoid at least partially apart, I did it recently. Help the poor guy get his kids off to college. It is seldom the solenoid, usually the contacts. The solenoid terminal connects to two windings, one of which is a very low resistance finding it's -ve through the motor itself. I replaced the solenoid and again the solenoid failed within 30 minutes. Yanmar Tractor Starter Solenoid Replacement - YouTube I eventually discovered a faulty wire between the ignition key and the starter button! warren's solution is treating the symptoms. Images: 3. That did turn it it over but I didnt manage to get the dexompression levers down quick enough to start. The switch itself may be bad, i.e. You must log in or register to reply here. Yanmar 3jh4e has had intermittent instrument panel stop - JustAnswer Spun better than ever. It's fairly common for the voltage at the starter to be too low while cranking. Yanmar Starting Problems | YBW Forum My experience of Yanmar is that they are somewhat lacking in electrical quality. 1 2 > Tags 3gm, 3gm30, wiring, yanmar Inboard diesels vs 2 stroke outboards. as it takes a few cycles at the starter button to get power to the starter. http://www.cruisersforum.com/forums/f54/starter-button-on-yanmar-gauge-cluster-20150.html, http://tartan3500.com/uploads/3/1/1/9/3119926/starter_wiring.pdf. When power is shut off, the plunger releases and the engine stops. JavaScript is disabled. JavaScript is disabled. When not starting, could hear "clicking" at the starter. The fact that you say sometimes the solenoid clicks and the lights dim suggests a poor, high resistance joint twixt the battery and the panel. all seems to be in order. I have tried to speak with yanmar Cyprus (i am living in limassol) but they are not helpful. Have you connected your new wire to the starter and not the solenoid by any chance? I am not famaliar with Yanmar, but most diesels I know of don't like to start with a pump slightly out of time. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Pressing the start button gives me nothing but a single click from the starter. But I had this problem too (3GMD). The easiest, cheapest solution is to replace the wire from the switch to the solenoid with good clean connectors. In my case heavier gauge wiring didn't solve the issue. Each Genuine part is manufactured under the ISO9001 standard, a process that utilizes the same materials, machinery, and production methods as the original equipment parts. It may not display this or other websites correctly. IIRC your Yanmar has a pre-engaged starter, made by one of the large Japanese companies. The solenoid throws in the drive gear first - hence pre-engaged - and completes the heavy current circuit to turn the engine via the starter motor once the gear is fully engaged. I have it in my boat, fitted by a Yanmar agent. A relay before the solenoid didn't solve the problem. That led everyone on a wild goose chase. The coil got extremely hot. I would bet its your wiring harness. I had the same problem as in Post #1 with my Yanmar 3GM: pressing the start button always caused the solenoid to click but energized the starter only about once in five tries. Location: Northern and Southern California, Here is a real simple test for you to do. And would give a 1.5V drop along the leads. Thank you gary for your suggestions. So the first one failed due to age and wear, and the OP had bought a couple replacements and they kept burning up. have had some intermittent starting issues with my Yanmar 2GM20, sometimes when I press the start button, nothing happens. Come join the discussion about towing, PTOs, reviews, attachments, modifications, troubleshooting, maintenance, and more! I would start by changing your glow plugs, thats most likely your problem. Was then told it is a common problem with the Yanmar ignition system and your fix is easy and cheap. red stays on the run position , wht stays on only for a second and shuts off whether turn the key back to run or not. For my 3gm30f the root cause was the starter key mechanism. There is a story to this as well. 500 amps along 0.003 ohms loses 750 watts! You are using an out of date browser. From memory it is the white wire from the switch that does the business. The idea was to prevent starts with the transmission in gear. Yanmar Starting Problems | Sailboat Owners Forums Thanks for your patience Tazza and I will let you know how it goes. Messages. Cleaning all of the harness connectors fixed my 2GM20F. You must present your engine to a Yanmar dealer as soon as a problem exists. https://www.ebay.co.uk/itm/12V-Auto327787?hash=item4b3d336dab:g:IeIAAOSwxwRarIz9. make a poor, resistive contact. View attachment X495 fuel shut off operation from TM2024.pdf, Medium Frame Compact Utility Tractors (MCUT), Large Frame Compact Utility Tractors (LCUT). Yanmar Starter Button | Sailboat Owners Forums Do you have the remote starter? Have had three Yanmars, all had this problem.

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