Block and Liner Service Flashcards
Hot tanks should not be used to clean
Aluminum components
3 methods of crack detection
Dye check
Magnetic particle
Fluorescent Magnetic Particle (Magnaflux)
Bores can be measured using:
- Dial bore gauge
- Inside micrometer
- telescoping gauge and outside micrometer
Bores are measured for what
Out of round
max diameter
taper
What are 2 forms if crack repair
Welding
Stitching
Thread Repair
Drill and tap hole to next size
Helicoil Inserts
Solid inserts
Purpose of a ridge reamer
Remove the ridge created by wear at the top of the ring travel
When the piston is forced against the cylinder wall on the power stroke, this wear is known as the:
Major thrust side
Opposite side of the cylinder that that the crank throw is on
When the piston is forced against the cylinder wall on the compression stroke, this wear is known as the:
Minor thrust side
Opposite side of the cylinder that that the crank throw is on
Wear in the cylinder will be the greatest…
At the top of ring travel because the rings and wall are subject to greatest heat and least amount of lubrication
a minimum of how many measurements must be taken to determine cylinder wear?
4
Cylinders should be visually inspected for?
Cracks
Scoring
Discoloration
Standard piston oversizes?
- 010
- 020
- 030
how do you determine the necessary oversize when boing…
Double taper wear and use next largest piston oversize available
Ideal crosshatch angle
40 to 60 degrees
Rate of movement when honing a cylinder
300-400 RPM, one vertical stroke per second
Main bearing bores that are misaligned could cause?
Excessive bearing wear
Broken crankshaft
The majority of cylinder wear occurs at?
top of ring travel, 90 degree to crankshaft center line
What are the 2 Safety precautions that are necessary when using a screw type liner puller?
- Ensure the shoe fits into the bottom of liner correctly and will not catch block
- Bridge is not placed over any weak areas, or holes in block
Wet liner seal rings should be lubricated?
Just before liner installation
