ASE Test Prep Manual A3, Automotive Manual Drivetrains & Axles
by Delmar, Most recent edition

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The Delmar Self-Study Guide for the A3 Manual Drivetrains & Axles ASE Test contains:

• Tips on preparing for and taking the ASE test.
• The A3 ASE Test Task List, which lists the knowledge that a technician must have to pass the A3 ASE test.
• Extensive Clutch, Manual Transmission/Transaxle, Driveshaft/Halfshaft, Universal/CV-Joint, Rear-Wheel Drive Axle and Four-Wheel Drive/All-Wheel Drive diagnostic information, symptom descriptions and probable causes, repair information, detailed disassembly, cleaning, inspection, repair, adjustment and assembly procedures.
• A Practice Test, with all questions written in the ASE style. The answers to the Practice Test questions contain thorough explanations for each answer.
• A comprehensive Glossary, including all automatic transmission/transaxle-related terms used in the Study Guide.

In addition to the easy-to-read text, the Delmar A3 Manual Drivetrain & Axles Self-Study Guide contains dozens of useful illustrations, and like all Delmar Self-Study Guides, it is spiral bound, which allows the pages to lie flat for ease of use. You ll also find the Delmar A3 Manual Drivetrain & Axles Self-Study Guide to be a handy reference manual that you can use on the job after you've taken the ASE test.   

A. Clutch Diagnosis and Repair (6 questions)

a. Diagnose clutch noise, binding, slippage, pulsation, chatter, pedal feel/effort, and release problems; determine needed repairs.
b. Inspect, adjust, and replace clutch pedal linkage, cables and automatic adjuster mechanisms, brackets, bushings, pivots, springs, and electrical switches.
c. Inspect, adjust, replace, and bleed hydraulic clutch slave/release cylinder, master cylinder, lines, and hoses; clean and flush hydraulic system; refill with proper fluid.
d. Inspect, adjust, and replace release (throw-out) bearing, bearing retainer, lever, and pivot.
e. Inspect and replace clutch disc and pressure plate assembly; inspect input shaft pilot and splines.
f. Inspect pilot bearing/bushing inner and outer bores; inspect and replace pilot bearing/bushing.
g. Inspect and measure flywheel and ring gear; inspect dual-mass flywheel where required; repair or replace as necessary.
h. Inspect engine block, clutch (bell) housing, transmission case mating surfaces, and alignment dowels; inspect engine core plugs, rear main engine seal, and other sources of fluid contamination; determine needed repairs.
i. Measure flywheel surface runout and crankshaft end play; determine needed repairs.
j. Inspect, replace, and align powertrain mounts.

B. Transmission Diagnosis and Repair (7 questions)

a. Diagnose transmission noise, difficult shifting, gear clash, jumping out of gear, fluid condition and type, and fluid leakage problems; determine needed repairs.
b. Inspect, adjust, and replace transmission external shifter assembly , shift linkages, brackets, bushings/grommets, pivots, and levers.
c. Inspect and replace transmission gaskets, sealants, seals, and fasteners; inspect sealing surfaces.
d. Remove and replace transmission; inspect transmission mounts.
e. Disassemble and clean transmission components; reassemble transmission.
f. Inspect, repair, and/or replace transmission shift cover and internal shift forks, bushings, bearings, levers, shafts, sleeves, detent mechanisms, interlocks, and springs.
g. Inspect and replace input (clutch) shaft, bearings, and retainers.
h. Inspect and replace mainshaft, gears, thrust washers, bearings, and retainers/snap rings; measure clearance and end play.
i. Inspect and replace synchronizer hub, sleeve, keys (inserts), springs, and blocking
j. Inspect and replace countershaft, counter (cluster) gear, bearings, thrust washers, and retainers/snap rings.
k. Inspect and replace reverse idler gear, shaft, bearings, thrust washers, and retainers/snap rings.
l. Measure and adjust bearing preload or end play (shim/spacer selection procedure).
m. Inspect, repair, and replace extension housing and transmission case mating surfaces, bores, dowels, bushings, and vents.
n. Inspect and replace transmission components related to speedometer operation.
o. Inspect, test, and replace transmission sensors, actuators, and switches.
p. Inspect lubrication systems.
q. Check fluid level; refill with proper fluid.

C. Transaxle Diagnosis and Repair (7 questions)

a. Diagnose transaxle noise, difficult shifting, gear clash, jumping out of gear, fluid condition and type, and fluid leakage problems; determine needed repairs.
b. Inspect, adjust, lubricate and replace transaxle external shift assemblies, linkages, brackets, bushings/grommets, cables, pivots, and levers.
c. Inspect and replace transaxle gaskets, sealants, seals, and fasteners; inspect sealing surfaces.
d. Remove and replace transaxle; inspect, replace, and align transaxle mounts and subframe/cradle assembly.
e. Disassemble and clean transaxle components; reassemble transaxle.
f. Inspect, repair, and/or replace transaxle shift cover and internal shift forks, levers, bushings, shafts, sleeves, detent mechanisms, interlocks, and springs.
g. Inspect and replace input shaft and output shaft, gears, thrust washers, bearings, and retainers/snap rings.
h. Inspect and replace synchronizer hub, sleeve, keys (inserts), springs, and blocking (synchronizing) rings; measure blocking ring clearance.
i. Inspect and replace reverse idler gear, shaft, bearings, thrust washers, and retainers/snap rings.
j. Inspect, repair, and/or replace transaxle case mating surfaces, bores, dowels, bushings, bearings, and vents.
k. Inspect and replace transaxle components related to speedometer operation.
l. Inspect, test, and replace transaxle sensors, actuators, and switches.
m. Diagnose differential assembly noise and wear; determine needed repairs.
n. Remove and replace differential final drive assembly.
o. Inspect, measure, adjust and replace differential pinion (spider) gears, shaft, side gears, thrust washers, side bearings, and case/carrier.
p. Diagnose limited slip differential noise, slippage, and chatter problems; determine needed repairs.
q. Measure and adjust shaft and differential bearing preload and end play (shim/spacer selection procedure).
s. Inspect lubrication systems.
t. Check fluid level; refill with proper fluid.

D. Drive Shaft/Half-Shaft and Universal Joint/Constant Velocity (CV) Joint Diagnosis and Repair (Front and Rear Wheel Drive) (5 questions)

a. Diagnose shaft and universal/CV joint noise and vibration problems; determine needed repairs.
b. Inspect, service, and replace shafts, yokes, boots, and universal/CV joints; verify proper phasing.
c. Inspect, service, and replace shaft center support bearings.
d. Check and correct drive/propeller shaft balance.
e. Measure drive shaft runout.
f. Measure and adjust drive shaft working angles.
g. Inspect, service, and replace wheel bearings, seals, and hubs.

E. Rear Wheel Drive Axle Diagnosis and Repair (7 questions)

    Ring and Pinion Gears (3 questions)
a. Diagnose noise, vibration, and fluid leakage problems; determine needed repairs.
b. Inspect and replace companion flange, yoke, and pinion seal; measure companion flange runout.
c. Measure ring gear runout; determine needed repairs.
d. Inspect and replace ring and pinion gear set, collapsible spacers, sleeves (shims), and bearings.
e. Measure and adjust drive pinion depth.
f. Measure and adjust drive pinion bearing preload (collapsible spacer or shim type).
g. Measure and adjust differential (side) bearing preload, and ring and pinion backlash (threaded adjuster or shim type).
h. Perform ring and pinion tooth contact pattern checks; determine needed adjustments.
  Differential Case/Carrier Assembly (2 questions)
a. Diagnose differential assembly noise and vibration problems; determine needed repairs.
b. Remove and replace differential assembly.
c. Inspect, measure, adjust and replace differential pinion (spider) gears, shaft, side gears, thrust washers, side bearings, and case/carrier.
d. Measure differential case/carrier runout; determine needed repairs.

 Limited Slip/Locking Differential (1 question)

a. Diagnose limited slip differential noise, slippage, and chatter problems; determine needed repairs.
b. Inspect, drain, and refill with proper lubricant.
c. Inspect, adjust, repair or replace limited slip or locking assembly components.

   Axle Shafts and Housing (1 question)
a. Diagnose rear axle shaft noise, vibration, and fluid leakage problems; determine needed repairs.
b. Inspect and replace rear axle shaft wheel studs.
c. Remove, inspect, adjust, and/or replace rear axle shafts, splines, seals, bearings, and retainers.
d. Measure rear axle flange runout and shaft end play; determine needed repairs.
e. Inspect axle housing and vent.

F. Four-Wheel Drive/All-Wheel Drive Component Diagnosis and Repair (8 questions)
a. Diagnose drive assembly noise, vibration, shifting, leakage and steering problems; determine needed repairs.
b. Inspect, adjust, and repair transfer case manual shifting mechanisms, bushings, mounts, levers, and brackets.
c. Remove and replace transfer case.
d. Disassemble transfer case; clean and inspect internal transfer case components; determine needed repairs.
e. Reassemble transfer case.
f. Check transfer case fluid level; drain and refill with proper fluid.
g. Inspect, service, and replace drive/propeller shaft and universal/CV joints.
h. Inspect, service, and replace drive axle universal/CV joints and drive/half shafts.
i. Inspect, service, and replace wheel bearings, seals, and hubs.
j. Check transfer case and axle seals and all vents.
k. Test, diagnose, and replace actuation and engagement systems (including: viscous, hydraulic, magnetic, mechanical, vacuum, and electrical/electronic).
l. Inspect tires for proper size and condition for vehicle application

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