Timing yanmar diesel problems forum. injection pump gear was removed and was given pump seperate from engine. As I have been able to find out so far, this engine does not belong in the excavator, so unfortunately the excavator manufacturer cannot help me any further. Not realizing the severity of the problem at the time, about 6 months age I ran it out of diesel and could not restart it. Dec 18, 2024 · Yanmar YM2000 Steering Problem. Kielanders; Mar 31, 2025 The Fora platform includes forum software by Feb 18, 2017 · Okay I just bought this tractor not running. Yanmar 6 is an actual marine motor although they did have several 6 which were not. We have tried Nov 6, 2024 · Yanmar Diesel Engines are known for their reliability, but even the best machines can encounter issues. I have read through a lot of the posts and replies on this site and you all seem to be a very knowledgeable bunch of folks, here's my problem: The We would like to show you a description here but the site won’t allow us. You can. Keep in mind the flywheel turns counter clockwise. It has a 2TR17 2 cylinder engine. Hi all, I am new to the forum and hoping you can help me with a problem I have with a Siromer 30HP (for Siromer read Jinma) with a Y385 engine. This being the 370hp motor doesn't have the issues with valves dropping out that some of the 6LY2A-STP (440HP) had occur. I fabricated a device to hook up to the #1 injector pump outlet. Nov 25, 2023 · The most common biodiesel blend is B20, which ranges from 6% to 20% biodiesel blended with petroleum diesel. I Jun 6, 2018 · Finding TDC on a 3 cylinder diesel is easy peasy. Jan 9, 2018 · Hey hef im pullin my hair out tonight Got a 4 cyl yanmar. Yanmar is massive in ocean going shipping They are close friends and work with Toyota Mar 12, 2007 · I have an 850 with the 3 cyl Yanmar diesel in it. My manual shows 13 deg +/-1 BTDC for the injection timing. Compression will need to be checked with a diesel compression tester (gasoline compression testers do not read high enough pressures). B20 and lower-level blends can be used in many diesel vehicles without any engine modification. Jan 17, 2024 · Hello everybody, I have a excavador with Yanmar 3TNE74 UIC Motor. Feb 3, 2016 · The Kohler 1000 engine has a fault with the oil pickup being to high in the sump any use over about 15 degree angle can starve the top end. :-( I now have time to work on it. But Jul 3, 2024 · I'm new to tractoring and diesel engines, have a Yanmar YM1700 that's been great for a year or so. If timing mark on flywheel has not reached timing index, retard injection timing by increasing total shim thickness under injection pump. I have fresh fuel and a new fuel filter. ) Can anybody tell me what May 12, 2008 · What about the starter motor cranking speed? 2 things: 1) Ensure that all 4 terminals between the starting battery and the engine are clean ie + to + and - to - and 2) check with a clamp meter that the starter motor is recieving at least 350amps (Manufacturer's spec for a 1GM10 says upto 450amps) If you are getting 350 Amps + and the starter motor is struggling then get it overhauled: It easy Mar 23, 2007 · If this didn't cure the problem, I resolved myself to remove the cylinder head, check bore wear, reseat the valves and look for any problems due to loss of compression. Update on the Yanmar 4300 fuel / timing issue. It ran fine last fall when I parked it, but now it won't start. Low compression can be due to piston rings that are not sealing correctly, a blown head gasket, bad or stuck valves, or a number of other problems. Dude said it died while he was using ot. com) Jul 2, 2015 · It appears to be one of the more solid motors that Yanmar manufactured. Hugh Odom; Apr 17, 2025 Timing a Yanmar Marine 1GM10. How to diesel engine timing install, diesel engine timing fitting, time kame fitting, truck engine timing, engine timing, Yanmar engine timing, timing fittin The Yanmar 1GM10 workshop manual tells you that you can't rebuild the high pressure fuel pump. The tractor was then hauled to Diesel Injection Service and, after they double checked the timing, they pulled the pump and discovered to their horror that they'd replaced the plungers with the wrong number. Jun 25, 2022 · Yanmar Volvo and Mercury inboards are someone else’s block. chinadoll Sep 26, 2020 · If more than 1 degree, adjust injection pump timing. That will quickly show you any cam gear misalignment. Does this engine look like it has been pulled apart before, and reassembled wrong? (Camshaft gear misalignment). This guide will walk you through common problems and how Troubleshooting for Yanmar Diesel Engines. Follow them. Advertise Here Thread Tools Apr 22, 2023 · The fact that it will kick back and blow smoke from the intake make me think it's a timing problem. There is fuel to the injector pump, its gravity fed and flows freely, but nothing comes out of the pump (I have the lines to the injectors disconnected. Nov 18, 2023 · There are many positive testimonies on many of the Industrial Equipment, Heavy Equipment, diesel boating, tractor and other forums on his work and professionalism. Train engines in bigger power boats. The motor had been rebuilt before we bought it. Glow plugs work, diesel is circulating, rocker arms are set, I have not touched the timing of the Feb 12, 2024 · Diesel injector pump timing is the process of setting the time when the fuel injectors deliver fuel into the cylinders of a diesel engine. My 2004 Mainship had great service records and had 1000 hours on the motor when I got it. The timing will control the mean effective pressure of the engine (MEP). Spec is probably around 10 BTDC, You could be running 30 degrees or more!!!! Causing excessive cylinder pressure(The knocking sound) The injectors & pump need to be taken to a "Diesel injector/pump service shop" & checked. IIRC the the #1 cylinder needs to be at TDC on the Mar 1, 2014 · This could cause your problem if all the safety checks are not satisfied - something as simple as a broken wire, bad switch etc. From starting failures to overheating, you’ll find step-by-step solutions to keep your Yanmar engine running smoothly. Jul 12, 2023 · I purchased a used 4TNV88 out of a refrigerant truck and mounted it in to my Case 1830 skidsteer. First and easiest is to ask if the decompression lever is causing the problem, have you run it with the valve cover off ? There is a thing with injector pumps called phasing and calibration. Yanmar has Injection Timing specs. An often-overlooked cause for hard starting diesels is incorrect injection timing. Feb 6, 2011 · we have a 3 cyl yanmar Model #3TNA72 UJ. I reringed and resealed engine. Next up I had to offset the cylinder 10 degrees before top dead center "bTDC" note: it's 10 degrees for Yanmar 4HTE 2 models. we checked the timing, compresion (455,455,475) glow plugs. If timing mark has passed timing index mark, ADVANCE timing by decreasing total shim thickness. To gain better access to the engine filter ( the one bolted onto the rear of a Yanmar 1GM10) I decided to remove the whole assembly so I could renew the filter, O ring and the 2 . When all timing marks are aligned for pump gear, crank and ,cam. Feb 13, 2018 · I have a yanmar 3tnv80f engine that i am working on and i made the mistake of pulling the 4 bolts out that hold the timing gear onto the injection pump instead of taking off the main nut in the center and pulling the gear at the hub. The engine will not start. Yanmar cannot help me either, as the engine cannot be assigned. The timing affects the engine’s performance, fuel efficiency, emissions, and noise. Now I now nothing about this specific engine but on my two 3cylinder Yanmar diesels there is a little rubber plug on the flywheel housing you pull that out and then you look for the timing marks on the flywheel then you line up the #1 cylinder timing mark with the mark on the flywheel housing. I believe it works on a spring/ centrifical force As mentioned above you may only have a fuel delivery problem (air) When trouble shooting, be certain that this change has not corrected the problem before moving to the next test procedure. Phasing is getting each element of the pump to cause injection at the correct point of the cycle but not in the same way as injection timing. However, B5 (a biodiesel blend of 5% biodiesel, 95% diesel) is also commonly used in fleet vehicles. Some of the 2015 engines have also not had the final commissioning and injection timing and setup carried out. They pulled four bolts instead of large nut. Oct 7, 2024 · It is much easier to mistreat this Yanmar than the old rock crusher Lehmans. A good Yanmar diesel engine can have close to 600psi. I know my way around gas but am learning on diesel. I was told that it was a running motor. The first maintenance I had performed on my ten-year-old engine with only 450 hours was to change the timing belt and service the intercooler tube bundle to satisfy myself that the engine would not be suffering some catastrophic failure before I got used to it. Rebuilt the injector pump and had the injectors checked, replaced the primary fuel pump and fuel lines. but if you have a Yanmar 4H3 onwards the cog that connects the injection pump shaft to the engine will have a more complex cog that integrates a timing offset mechanism. Mercury and Volvo truck motors. I then said he later tried a new injector pump. Shout out to The Pump Guy | Heavy Equipment Forums (2) Thepumpguysc rocks - TractorByNet Timing fuel injection pump - Yesterday's Tractors (yesterdaystractors. so I have went through it and got Apr 16, 2005 · Thank you for answering, I forgot to mention the y385 chinese tractor engine is a disel. So how do i get the timing right for the injection pump. the cylinder closest Mar 7, 2022 · Cruisers & Sailing Forums > Engineering & Systems > Engines and Propulsion Systems Yanmar injection timing Register Vendors FAQ Community Calendar Today's Posts Search Log in This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on Cruisers Forums. Jun 11, 2013 · The knocking is from the Injection Timing being too Fast/Advanced. . It's only a question of finding a land based tractor diesel repair shop with no connection to the word 'Marine' that repairs Yanmar or Kuboko generators. Most sailboat yanmars are lawn mower motors. Been sitting for about 10 months. I did manage to find some information on the google site on how to adjust the injector pump, I'm going to give it a try tomorrow. Verify your TDC, and look at the valve timing. Then took it to a mechanic and mechanic said injectors were bad and compression was good. Feb 11, 2010 · After putting the engine back together and checking the timing (it was right on the money), the engine did the exact same thing. Lots of stuff for you to think about.