[QUOTE=cars admire;772659][QUOTE=Hisham.Elgazzar;771 912]
Diagnosing Differential and Driveline Noises
We don't know which sounds worse—us singing show tunes in the shower or a howling
differential. While there is no help for our singing,
i can help you diagnose the sounds coming from a differential gone bad.
A clunk, whine, or howl can signal a worn-out pinion gear, bad bearings, or a faulty gear installation. Sometimes, the noise is not differential-related, but is caused by other driveline or axle components. The guide below will help you match up the noise you're hearing with the differential or axle component making it—or at least get you in the ballpark.
Noise: Howl while decelerating (gears previously quiet)
Cause: Loose pinion bearing preload
Noise: Howl with whir or rumble while accelerating at any speed (gears previously quiet)
Cause: Worn rear pinion bearing or worn gear set
Noise: Howl without whir or rumble while accelerating at any speed (gears previously quiet)
Cause: Worn gear set due to lack of lubrication or overloading
Noise: Howling while accelerating over a small speed range (gears previously quiet)
Cause: Worn gear set due to lack of lubrication or overloading
Noise: Howling after gear set installation
Cause: Faulty gears or improper installation
Noise: Low-pitch rumble at all speeds over 20 miles per hour
Cause: Worn carrier bearings
Noise: Whirring during acceleration/deceleration at about 10 miles per hour
Cause: Worn pinion bearings
Noise: Banging or clunking while making a turn, backing up, or rapid deceleration (like on a freeway off-ramp).
Noise gets worse in warmer weather
Cause: Posi chatter due to improper lubrication; worn clutches or spider gears; improper assembly
Noise: Banging, crunching, or popping while making a turn
. Noise not affected by temperature
Cause: Badly worn or broken spider gears
Noise: Banging or heavy clicking every 2-3 feet during acceleration and deceleration
Cause: Damaged or broken pinion gear tooth or teeth
Noise: Banging or heavy clicking every 2-3 feet during acceleration or deceleration, but not both
Cause: High spot or heavy chip on pinion gear tooth
Noise: Banging or heavy clicking every 8 feet during acceleration and deceleration
Cause: Damaged or broken ring gear tooth or teeth
Noise: Banging or heavy clicking every 8 feet during acceleration or deceleration, but not both
Cause: High spot or heavy chip on ring gear tooth
Noise: Clicking while decelerating from 20 miles per hour to a complete stop
Cause: Worn carrier case-side gear bores
Noise: Rumble or clicking that gets worse during hard turns
Cause: Bad wheel bearings
Noise: Driveline squeaking or grinding at any speed
Cause: Worn or damaged U-joints
Noise: Clunking when depressing the throttle pedal (takeoff)
Cause: Worn U-joints; worn spider gears; worn axle splines; excessive gear backlash; loose yoke splines; worn slip yoke splines
Noise: Clunk immediately after taking off from a stop
Cause: Worn slip yoke splines
Noise: Steady vibration that increases with speed
Cause: Worn U-joint or out-of-balance driveshaft
Noise: Cyclic vibration that varies in intensity. Intensity increases at a specific speed range, worsens during deceleration
Cause: Pinion angle too low (not parallel with front yoke on driveshaft)"
/QUOTE]
[QUOTE=حمدى مخترع مانيوال بدون د;772721]الصنيعى الى حطلك السنفرة دة ما بيفهمش خالص وكمان سابلك الصمولة سايبة منو لله
QUOTE]
AHLN WSHALN
AHLNWSHAL N
AHLN WSHALN
AHLNWSHAL N
AHLN WSHALN
AHLNWSHAL N