Caterpillar Crankcase Damage

Caterpillar Crankcase Damage

We were overhauling a Caterpillar engine in the workshop the other day when we came across some significant damage – which is not an uncommon sight on engines with wet liners. We’d removed the cylinder liners and inspected the crankcase, and this is what was found: You’ll see the damage caused by fretting on both the liner and the crankcase e-bore. Whilst the liner was going to be changed as part of the overhaul, there are...

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Drop in engine power due to piston ring gap positioning

Drop in engine power due to piston ring gap positioning

Whilst carrying out some investigations into oil leaks on a Waukesha engine last week, our engineer, Charlie, came across a separate issue which was causing a loss in power and effectiveness to the engine performance. As part of the investigations, he removed the pistons and found a common problem: Those with a keen eye (like Charlie) will notice that the gaps in the piston rings are near each other, almost in line with each other in some...

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Deutz generator with dangerous oil pressure caused by cold weather

Deutz generator with dangerous oil pressure caused by cold weather

This week we had a stark reminder of the importance of making sure your engine oil is kept at the right temperature.We’d completed the overhaul of a Deutz driven generator package and prepared the unit for the first test run.And during that first test run, there was a problem.As part of the preparations, the oil heaters were left on for 8 hours, but when the engine started, it only registered around 20 Psi pressure, so was shut down...

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Mirrlees ELS12 generator set drop in oil pressure

Mirrlees ELS12 generator set drop in oil pressure

Last week we were called to the site of a Mirrlees ELS12 generator set, and there’s no prizes for guessing what the issue seemed to be. Once Cris arrived on site and went about looking into the reported problem, he found there was no issue with the engine’s oil pressure. Instead, there was a problem with the feedback of information to the panel. For this setup, the engines rely on Amot switches as part of the warning system As he...

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Critical engine spares problems

Critical engine spares problems

Have you ever felt the pain of having to wait for spares to arrive whilst your critical engine is out of action?If you have, then the chances are you’ll have considered (or acted upon) the idea of holding more spares in your stores.And usually, we’d promote this type of proactiveness, though there is something else to consider, which was highlighted to us while helping a client this week.Tim’s our store manager.Right now,...

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Caterpillar C32 coupling deterioration

Caterpillar C32 coupling deterioration

Last week we had two Caterpillar C32 propulsion engines in our workshop for an hours-based overhaul. After starting the dismantling and inspection process, we identified issues on each engine that would have gone unnoticed if the operator had not removed the engines for overhaul and continued running them instead. If left unchecked, these issues would have led to catastrophic failure and possible engine replacement whilst stranding the vessel....

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