References
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We found this engine in parts in the engine room of a jack-up. After review of the parts we did an overhaul of the complete engine. The activities we did, among other things, were:
- Cylinder head overhaul incl. new valves and injectors
- Renewal of the pistons, piston rings and cylinder liners
- Renewal of the main bearings and big- end bearings
- Overhaul of the fuel pump and turbocharger
- Renewal of the water pump and oil pump
We placed a new radiator and a new generator as well. We are proud of the result.
These Volvo Penta KAD300 engines were completely dismounted from the engine room and brought to our workshop for a complete overhaul. The activities we did, among other things, were:
- Overhaul of the cylinder heads including renewal of the valves and the valve seats
- Renewal of the pistons, cylinder liners and piston rings
- Renewal of the main bearings and big-end bearings
- Renewal of al gaskets and seals
- Renewal of the water pumps, injectors and turbochargers
- Cleaning of the coolers
- Overhaul of the fuel pump
The engines were mounted after overhaul and the trial run was successful.
These Volvo Penta D6 engines were dismounted by us after we found a big amount of oil in the air filter. We first checked the engines with our endoscope and we found quite some scratches and rust in the cylinder walls. After disassembly in the workshop, both blocks turned out to be so damaged that replacement was cheaper. We executed the following:
- Delivery of two new blocks
- Cleaning of the coolers
- Overhaul of the turbochargers
- Overhaul of the water pumps
- Assembly of both engines
After this, we conducted a successful trial run.
This Volvo Penta D3 engine made a very weird noise, used a lot of oil and had a considerable crankcase pressure. During the endoscopic examination we found considerable scratches on 1 of the cylinder walls. We disassembled the engine and dismounted it in our workshop. After inspection, the engine turned out to be unrepairable. We therefore supplied a new longblock and rebuilt all other usable components from the old engine. After assembly, we conducted a successful trial run.
One of these Volvo Penta KAD42 engines had power loss and used a lot of oil. After endoscopic examination we concluded that one of the pistons was scraping on the wall and that the remaining cylinders had rust and scratches. The client decided to disamble both engines and have them overhauled by us. We performed the following activities:
- Renewal of the main bearings and big- end bearings
- Renewal of the piston, cylinder liners and piston rings
- Overhaul of 1 cylinder head
- Renewal of the other cylinder head (because of ruptures)
- Overhaul of the turbochargers
After completion of the work, a successful sea trial was conducted.
The owner of this Volvo Penta IPS 600 felt vibrations after hearing a bang. After further inspection it turned out that the IPS shafts were curved. We dismantled both the IPS drives and brought them to our workshop. We took the IPS drives completely apart, replaced the curved shafts and assembled the IPS drives with new bearings and seals. Of course, all gear and bearing clearances have been reshimmed for optimal operational reliability. We mounted the IPS drives back on the boat and conducted a successful sea trial.
During regular maintenance, the owner found water in the oil of both IPS drives. He called MI Techniek to investigate where the drives were leaking. We found outdated propeller shaft seals. When replacing the seals, it turned out that the shafts at the seals had run in to such an extent that mounting the new seals on these shafts would almost certainly not solve the leakage. After consultation with the owner, we disassembled both IPS drives and took them to our workshop. We disassembled and repaired the propeller shafts, so that the sealing surfaces on the shafts were in perfect condition again. We also provided a hardened surface so that the sealing surface will last longer in the future. We reassembled the IPS drives and mounted them back in the boat. After this, we conducted a successful trial run.
This Volvo Penta TAD1242VE would not start up. After diagnosis, the internal relay in the DCU was found to be broken due to a power failure. We replaced the DCU and the engine was working properly again.
This engine powered a set of hydraulic pumps on a rig.
All three The Volvo Penta D16MG generator sets of this tanker suffered from malfunctions.
In the first set, measurements showed that the camshaft gear had not been returned to the correct position during a previous repair. After we corrected this, the set ran fault-free again.
The second set turned very irregularly. The connectors on the injectors turned out to be in such a bad condition that they were sometimes not activated. After replacing the connectors, the engine was running properly again.
The third set could only be started locally. It turned out that the internal start relay in the ECU was broken. We replaced the ECU, after the change this engine could also be restarted by the power management system.
This Volvo Penta TAMD75 with EDC went too well in emergency mode (Neutral – 1000 rpm) with malfunction 4.7. The cause was difficult to find because the malfunction sometimes occurred and sometimes it did not. By using our oscilloscope to measure the signals across the wiring harness, we were able to locate the cause and resolve the failure.
This Volvo Penta TAMD122 failed while running, without any apparent cause or malfunction. After measurements on the fuel pump and in the wiring harness, we concluded that the internal power supply in the ECU was no longer stable. We replaced the ECU, this solved the problem.
This Volvo Penta D12-715 did not rev up anymore and smoked considerably for no apparent cause. We replaced the solenoid for the waste gate, with this the power was back and the malfunction resolved.
This Volvo Penta D6 turned very irregularly after a few minutes and the rpm went in all directions. At some times, the engine completely shut down as well. Many parts had already been replaced before we were called in. We took measurements on the fuel system and located a distorted signal, which turned out to be caused by an improperly pressed pin in a connector on the ECU. The engine is now running properly again.
