Sec. 3 Inspection Guide/Failure analysis for main and connecting rod bearings Flashcards
0
Q
Debris or foreign particles cause approximately ____% of all bearing failures?
A
50%
1
Q
What info should you gather on an engine for a bearing inspection?
A
Engine family Application Location in the world Engine and Machine Serial # Engine/Machine and bearing hours Bearing Part Numbers Engine history
2
Q
Where is cavitation erosion usually at on a bearing?
A
Near the upper parting face
3
Q
Fretting occurs when there is?
A
Play in the bearing(movement)
4
Q
When bearing failires occur what parts should be replaced.
A
Oil Filter and Oil Cooler
5
Q
What is electrical discharge damage to a bearing?
A
When an electrical current goes through the crankshaft bearings and into the block due to poor grounding.
Causing an arc between the bearing and the crankshaft and block. The bearing tends to look frosted.
