mercedes diesel engine Archives

2007 International School Bus Parked Regen

Well it started out alright until I found out the soot level in the diesel particulate filter was at a level 5 indicated in the software readings. That is the maximum level which means the chances of cooking out the soot to conservative levels is probably not going to happen. In fact the regen never… Continue reading 2007 International School Bus Parked Regen

Scrapping 2008 Mercedes Diesel Engine Cracked Block

Once the engine block is cracked on any engine you’re out of luck. Can it be fixed? I wouldn’t want to take a chance because of the heat and pressures that goes on during normal operation. In our case the cost in U.S. dollars would have climbed close to $50,000 dollars Canadian. The shipping from… Continue reading Scrapping 2008 Mercedes Diesel Engine Cracked Block

Mercedes MBE 900 Diesel Engine Replacement

This is a 2008 Mercedes MBE 900 Diesel Engine that has been sitting for over a year now. It had a major issue with losing engine coolant every time the bus (Thomas HDX Pusher Bus) climbed a grade under load. The coolant would blow out of the coolant fill tank (surge tank) a gallon at… Continue reading Mercedes MBE 900 Diesel Engine Replacement

Diesel Engine Cold Start in a School Bus

This diesel engine in this video started up quite nicely compared to other buses I’ve encountered during winter conditions. The batteries were in good shape and there were no mechanical issues with the fuel system. So what could cause a poor start on a diesel engine? First thing is block heaters or diesel coolant heaters.… Continue reading Diesel Engine Cold Start in a School Bus

School Bus Garage January Highlights

School bus repairs is never boring because the variety never ends. I will go through each of the featured jobs in this video and do an over view including the solution which is the best part of any mechanical repair. The first part is an injector failure or I should say injector sealing washer failure… Continue reading School Bus Garage January Highlights

Mercedes MBE 900 Turbo Replacement

Deciding to replace a $3,000.00 turbocharger on a Mercedes MBE 900 isn’t an easy decision. This particular bus has been a thorn in our side for years mainly because of this one engine code that keeps popping up over and over again regardless of what we do to try and eliminate it. This time we… Continue reading Mercedes MBE 900 Turbo Replacement

Mercedes MBE 900 Diesel Engine Repair

This repair has a long history of scenarios which ended up as a major engine repair. The head gasket on this 2008 Mercedes MBE 900 diesel engine has failed. That’s the least of possibilities. Another option would be a cracked head but I’m staying optimistic. One thing for sure the top end of these diesels… Continue reading Mercedes MBE 900 Diesel Engine Repair

Cold Start Mercedes Diesel Engine in a School Bus

This bus is one of our older non emission diesel engines. It’s a 2004 Mercedes MBE 900 in a Thomas HDX pusher school bus. As soon as oil pressure is reached I flipped on the high idle switch to get away from over fueling with unburned raw diesel which is very unhealthy for components related… Continue reading Cold Start Mercedes Diesel Engine in a School Bus

Mercedes Diesel Engine Air Compressor Failure

This school bus with a Mercedes MBE 900 diesel engine suffered a premature air compressor failure due to dirt in the engine oil caused by a faulty air intake hose. We had already replaced it a year earlier. The engine oil sample that I receive by email indicated a severe level of dirt in the… Continue reading Mercedes Diesel Engine Air Compressor Failure

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