Comprehensive Guide to Engine Performance and Testing Techniques
School
Baltimore City Community College**We aren't endorsed by this school
Course
ENGLIS MISC
Subject
Mechanical Engineering
Date
Dec 10, 2024
Pages
6
Uploaded by LieutenantOxideOtter42
Student Full name: Patrick Francilien Professor: Greg WellerClass: Auto 141 Date: Feb/19/2023Engine Report.Summarize Motor 5.7/reportCompression/Leak down ReviewCylinder head instal height/springEngine serviceEngine performanceElectrical.
1 Distinguish parts of the engine Understand the 4 strokes of the engine a)In take b)Compression c)Power/combustiond)Exhaust. Understand the companion of each cylinder For example, Cylinder 1-comanion is 4Dissemble engine Remove intake manifold Exhaust manifold Spark plug and do on.Disassembly: oil Pump timing cover camshaft pistonscrankshaft.
Measurement :1 piston ringsTop piston ring a).0015 Mm.038 MmBottom ring .004 Mm.012 MmCrankshaft/ journal Main rod (journal)2.0000.5000.0500.0080.00052.5585’’Connector rod 2.0000.1000.0250.00102.0260’’
Measure with bearing :2.559’’Without bearing 2.609”Measure valveUse micrometeor .2000bstan clearance 23600 intake cylinder head Measure inside cylinder head Use a hole gage 0001’’ stear valve clearance Measure cylinder head when valve closed when it opens Valve soring pressure gauge 1.620.070……1.550’’Air leakage Cylinder 1 38%Cylinder 2 65%Cylinder 3. 30%Cylinder 4. 25%Cylinder 5. 37%Cylinder 6. 25%Cylinder 7. 45%Cylinder 8. 75%Timing change:
Remove and replace.Remove.Water pump cover Thermostat housing Timing chain cover Tensioner left side camOil pump tensioner Sprockets Chainphasal Compression test With the vlave without the valve.Compression (dry)1stcranck (cylinder1)75 -lasst cranck 190 psiCylinder 3 1stcranck 75 last cranc 175 psiWet testCylinder 1 1stcranck 83 last cranck 173 psiCylinder 21stcracnk 89 last cranck 175 psi
Leak down testCylinder 2 90 psi-------165Cylinder 4 90 psi 70%Vaccumm test Cylinder head Remove springs Use a specific tool Press the spring down To remove remove Valve keeper Reainner Shime