Examples of common warranty exclusions – EXEDY Clutch User Manual

Page 2

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11-11-10

Examples of Common Warranty Exclusions

1. Check for a warped alloy bell housing

2. Examine tubular dowel pins for damage during fitting of bell housing or for

missing dowel pins.

3. Examine gearbox quill/gearbox main drive nose cone/bearing slide:

Excessive wear can cause bearing to come in contact with the cover

assembly diaphragm unevenly while actuating the clutch.

4. Ensure the proper mating of bell housing to motor, and crankshaft to

flywheel. These may not mate properly due to debris, grease or other

parts in the way of the mating surfaces.

5. Examine all bearings/bushings for excessive wear, replace if necessary.

6. Replacement engines and gearboxes may have missing dowel pins.

Ensure that you remove pins from your product when you send your core

for remanufacture, and refit or replace them when installing new clutch.

Hanging the Gearbox

General Misalignment Issues/Tips

Diagnosing Bearing Noises

1. Clutch release bearing

A. Depress the clutch pedal approximately

2”. the bearing is now in contact with the

diaphragm. Should the bearing rumble or

squeal then the clutch release bearing is most

likely at fault (providing it has been pressed

onto the carrier the right way around.)

2. Pilot Bearing or Bush.

A. With engine running depress the clutch fully.

B. Select first gear.

C. Release the clutch.

If the squeal is heard at the point of the clutch

taking up, then the pilot bearing is faulty. In

the event it is a bronze bush it will indicate

lack of lubrication on the I.D. of the bush. If

the bush has been lubricated on the I.D. there

is a greater possibility that the O.D. of the

bush is under sized and worn. The noise is

then caused by the bush spinning in the end

of the crank. If new pilot bush has not been

pressed in evenly this could also result in the

bush spinning which would cause a grumbling

or squealing noise. Pilot bush noises are more

apparent when engine and transmission are

cold. (i.e. In the morning).

3. Front gear box bearing

A. Drive the vehicle at approximately 25 mph

in gear. If a noticeable grumble noise is

apparent, depress the clutch pedal to the

flooor. This will, in turn, stop the main drive

and bearing from spinning. If noise ceases it

is probable that the front gear box bearing is

faulty (as there is no load on the bearing).

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