The service life of a worn aluminum piston...

Question 1 / 270705eccefa1bacbc34ba4d4752d

Question 1 of 270705eccefa1bacbc34ba4d4752d

The service life of a worn aluminum piston for an auxiliary diesel, for which no spares are readily available, can be extended by __________.

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Question 1 of 27070

The service life of a worn aluminum piston for an auxiliary diesel, for which no spares are readily available, can be extended by __________.

🔍 Key Concepts

• Piston skirt function in guiding the piston in the cylinder and controlling side clearance • How wear on a piston skirt affects compression, blow-by, and piston stability • Typical temporary repair methods used in small marine diesels when spares are not available

💭 Think About

• Which option would help restore proper fit between the piston skirt and cylinder without removing more metal? • Which method is commonly used in the field as a quick, low-cost way to take up excess clearance on worn pistons? • Which choices might actually weaken the piston or change critical dimensions, making the problem worse rather than better?

✅ Before You Answer

• Identify which options remove material versus which displace or add material to reduce clearance. • Consider whether changing ring land groove dimensions is safe for ring sealing and strength. • Ask whether any option would likely be considered only a temporary emergency measure, not a standard overhaul practice.

Question 1 of 27070

The service life of a worn aluminum piston for an auxiliary diesel, for which no spares are readily available, can be extended by __________.

turning down the piston skirt to concentric values

building up the piston skirt with a liquid epoxy material and then re-machining

knurling the piston skirt surface

increasing the dimensions of the ring land grooves

Question 1 / 270705eccefa1bacbc34ba4d4752d

Question 1 of 270705eccefa1bacbc34ba4d4752d

The service life of a worn aluminum piston for an auxiliary diesel, for which no spares are readily available, can be extended by __________.

Back

Question 1 of 27070

The service life of a worn aluminum piston for an auxiliary diesel, for which no spares are readily available, can be extended by __________.