Flashcards in Engine Block Diagnosis And Repair Deck (10):
The camshaft is supported by pressure lubricated _____ at _____ .
Interference fit cylinder block located camshaft bearings are removed ______ usually from front to back using ______ and _______.
The cam lobe must be inspected for signs of _____ , ______ , or _____
1 friction bearings , main journals
2 sequentially , bearing driver , slide hammer
3 pitting , scoring , flat spots
Camshaft end play is defined by either _____ or ______ thrust washers. Thrust loads are not normally excessive unless the camshaft is driven by a _____.
Cam followers ride on the cam lobe and transfer the motion of the cam lobe to the _______.
On newer engines cam followers are typically _______ .
1 free , captured , helical tooth gears
2 valve train
3 rollers ?
The difference between piston diameter and cylinder bore diameter is ______ clearance.
When there is a low oil pressure concern oil pressure must be verified using a ______.
Some manufactures use external oil pumps that have lines routed out of the ______ and returning near the ______.
Most internal oil pumps can be accessed by removing the _______ .
1 piston to cylinder wall
2 master gauge
3 block , bypass valve
Piston rings are ______ floating or ______ floating piston pins are held with _______ .
Installing the piston in the incorrect direction can result in interference with the ______, _______,and ______ counterbalance .
Measure piston diameter at ______ angles ______ inch below the bottom edge of the lowest ring groove.
1 full , semi , retaining clips
2 valve heads , piston cooling nozzles , crankshaft
3 right , one
Erosion on the head of a piston is usually caused by _________.
Overheating can result from poor _______ , _______ through the engine or _______ .
Piston diameter is measured ________ degrees from the wrist pin approx ______ inch from the bottom of the skirt.
2 coolant circulation , insufficient air flow , over fueling
3 90 , 1/2
Typical diagnostic routine
The two most important pieces of info in the vin# are _____ and ____ digit.
The ____ represents the engine.
The ____ represents the model year.
1 listen to the complaint , road or dyno test , perform diagnostic tests , make repairs and verify .
2 8th / 10 th
3 8 th / 10 th
An inspection of the crankshaft begins with ______ and _____ .
Perform a careful inspection of the crank by measuring ______ or more places around the journals diameter.
To identify a tapered journal measure the diameter nearest each ______ and the _______ of the journal.
1 connecting rods , main bearing shells
3 side , middle
If the main bearing bore is out of alignment , uneven pressure is applied to each _______ , causing the ______ to ______ .
Use a ______ to verify main bearing bore alignment .
Failure to align the main bearing shell oil passages will result in oil starvation , _____ , ______ , ________ .
1 bearing , crank , flex
2 master bar
3 bearing fatigue , scoring , metal in oil
Incorrect counterbore depth can result in _______ .
Cylinder walls or liners inspection should include checking for _______ using a _________ micrometer.
Out of round condition can be detected by measuring the diameter at one point inside the cylinder and rotating ________ around the cylinder______ .
Typically liner taper and out of round should not exceed ________ inches.
1 leaking head gaskets
2 taper , inside
3 inside micrometer , 180