Exam 4: Engine Removal, Disassembly, Inspection, and In-Chassis Repairs

Why should the oil pan be removed before turning the engine over (upside down) when mounted on an engine stand?

If non-roller lifters will be used again, what caution is necessary?

Technician A says that when using a flare-nut wrench, two wrenches must often be used. Technician B says to use an open-end wrench on fuel fittings. Who is right?

During engine removal with an automatic transmission, the torque converter stays with the engine.

Technician A says that an automatic transmission heat exchanger is often located within the radiator. Technician B says that an automatic transmission heat exchanger is often found in the bottom of a radiator. Who is right?

How would you protect the crankshaft when removing pistons and rods?

Technician A says that some crankshaft sprockets slide easily onto the crankshaft snout. Technician B says that some crankshaft sprockets are pressed-fit. Who is right?

Besides measuring it, how can a piston be checked to see if it is oversized?

Technician A says that cylinder heads are more easily removed after warming up the engine. Technician B says that to avoid warping the head, the engine must be cold before removing it. Who is right?

Technician A says that all vehicles have vacuum diagrams under the hood and there is no need to mark the vacuum lines. Technician B says that for late model vehicles, microfiche will have all the information you need to rebuild the engine. Who is right?

List four reasons that the repair order (R.O.) is important.

What causes the ridge at the top of a cylinder?

The engine has to be removed to replace a rear main (crankshaft) oil seal.

What part usually connects the engine to the fire wall or bulkhead electrically?

How can metal be checked to see if it is safe to clean in a caustic cleaner?

Technician A says that to identify a vehicle all you need to know is the make and model. Technician B says that the VIN code can be found in the owner's manual. Who is right?

Technician A says that it is usually easier to remove the engine with the automatic transmission on a rear-wheel drive car. Technician B says to disconnect the positive battery cable first. Who is right?

Why should air-conditioning lines not be disconnected?

Technician A says that the vibration damper is removed with a puller that grasps the damper's outer ring. Technician B says that when an air impact wrench is used on a puller to remove the vibration damper, the crankshaft need not be kept from turning. Who is right?

What are bulletins that are produced by manufacturers and associations called?