Yanmar marine diesel engine problems

I left the marina the engine ran perfectly. When it approaches 1000 hs you hear a slight ticking as you come off the power.

YANMAR 6EY18 MARINE DIESEL ENGINE SERVICE MANUAL.

Yanmar marine diesel engine problems. I replaced the fuel lines last winter and had trouble getting it started after I thought I had done a good job of bleeding the air out. I talked to the mechanic at the marina and he offerred a simple solution that worked very well. He told me to get a simple outboard motor type squeeze priming bulb Moeller makes them and they sell for about 10.

Troubleshooting and finally fixing a Yanmar 2gm20 marine diesel engine. Removal of Cylinder head valve lapping re-assembly and some oil pipe improvisation. When it approaches 1000 hs you hear a slight ticking as you come off the power.

Continue to use the engine and the exhaust valve drops wrecking the engine. Yanmar are having to replace literally hundreds of engines as owners brought a Class Action Lawsuit a Yanmar continued to sell engines knowing full well there was a problem. Yanmar has plenty of bulletins on thisDo some research.

These engine have a very complex seawater coolant sideIMO each of these components needs to properly serviced on the bench every 2-3 years if in saltwater regardless of engine hours. YANMAR engines are built to deliver reliable and efficient performance and come available with multiple options and certifications including SOLAS semi 2-pole high power alternators NMEA connectivity and more to satisfy nearly any light-duty commercial application requirement. Concerning engine replacement cost - the Beta Marine 10 HP 2 cylinder fresh water cooled diesel engine with transmission can be had for about 4600.

The 135 hp model sells for 550 more and includes a flexible prop shaft coupling oil change pump mounted on the engine etc. Either one of these engines will push an 8000 lb. For a successful marinising project the engine is led to believe it is still in a car so seawater should be kept away from it.

If you can make the two critical items you wont have problems with making engine supports and a bracket for a small raw water pump. You also need a heat exchanger with a small expansion tank. Yanmar Marine Diesel Engine 4BY-150150Z 4BY-180180Z 6BY-220220Z 6BY-260260Z Workshop Service Repair Manual DOWNLOAD This is the Highly Detailed factory service repair manual for the Yanmar Marine Diesel Engine 4BY-150150Z 4BY-180180Z 6BY-220220Z 6BY-260260Z this Service Manual has detailed illustrations as Open.

This engine is in majority of new BMWs in Europe and selling like hot cakes - the marisation by Yanmar should be fine as a reputable marine engine supplier. One little problem you may find is that the engine is fairly big I think for a 13 foot beam. There is no need to replace an engine if it is working properly and is well maintained.

Keep the diesel and tanks clean keep the lubricating oil fresh and watch the seals for leakage. Change coolant when appropriate replace zincs in the raw water system etc. Basically all Yanmars come with an owners manual.

I have done all regular routine maintenance suggested by the owners manual oil trans belts impeller and so on. Replaced normal ware and tear items of the years. Winterized engine every year with no issues engine startup every time on the first time.

I have no engine hours meter so I can only approximate the hours to be 3500 - 4000 hrs. Marine Diesel Engines are a high cost component in any vessel and their protection from sudden trouble is an important concernThe alarm systems on marine diesel engines are there to protect the engines from damageAt some point you may get alarms for different troubles. The fault could be due to loss of oil pressure overheating high exhaust temperature.

This video is a detailed demonstration of the fresh water cooling system of a salt water Yanmar diesel marine engine including a description of repair princ. I took my sailboat out for a short cruise. The boat has a 1983 Yanmar 2GMF which has previously worked flawlessly for the past year and a half that weve owned the boat.

I left the marina the engine ran perfectly. I then shut down the engine and sailed for a while. Yanmar Marine Engine 6CX-ETE Service Repair Manual Yanmar Marine Diesel Engine SY SERIES 6SY-STP2 6SY655 8SY-STP Service Repair Manual.

YANMAR 6EY18 MARINE DIESEL ENGINE SERVICE MANUAL. Yanmar Marine Diesel Engine YSM8 YSM12 Service Repair Manual. Yanmar Marine Diesel Engine YSE8 YSE12 Service Repair Manual.

Units on smaller older marine diesel engines can easily be retrofitted with a regulator such as Sterling Powers Pro Reg. Interactive marine diesel engines. It used to be that marine diesel engines would buzz along in the background unless they overheated in which case you were treated to an ear-splitting alarm from the control panel.

If well maintained and revved properly the Yanmar should last 8000-10000 hours or so I hear. Be sure to rev your engine up over 3000 rpm for five minutes for every hour you run it at 2000-2400 rpm. Otherwise bad things will happen.

5 - 29-Jan-12 Reply. Assuming your gasser is propped to reach 4500 rpm or greater at wot then at 2800 rpm it is producing about 100 hp. That is a good spot for the discontinued 240 hp Yanmar 4LH-STP engine.

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. Compression will need to be checked with a diesel compression tester gasoline compression testers do not read high enough pressures. A good Yanmar diesel engine can have close to 600psi.

Throughout the day the engine runs at a work speed of 2500 rpm where the hull cruises at a steady 17 knots. With the throttle wide open the Yanmar engine spins up to 2900 rpm for a maximum speed of 22 knots. The only time the engine drops back to an idle is when the boat comes up to a Cray pot.

Yanmar marine diesel engine runs in top condition keeping the vessel uptime. Genuine Yanmar parts are manufactured under the same high-quality conditions as all high and medium-speed engines. You can prevent costly repairs by using Yanmar genuine parts and perform regular maintenance for a trouble-free voyage of your vessel sailboat fishing boat or ferry.

Originalpart4you offers you genuine Yanmar marine engine. The Yanmar 4LHA-STP marine diesel engine is the biggest four-cylinder diesel in the Yanmar engines recreational inboard range. Its the most powerful of a trio of marine diesel engines from 158 to 237bhp that suit semi-displacement cruisers.