nok oil seal catalog

The tension of the toothed belt that drives an overhead camshaft must be checked at the intervals set by the servicing routine laid down in the car handbook. Check it also whenever you remove and refit the belt or the cylinder head.nok oil seal catalog .
The belt tensioner is an adjustable plate carrying a jockey wheel or roller. If it is wrongly adjusted – whether too loose or too tight – it can cause noise and rapid wear.
On some cars, the crankshaft pulley has to be removed. Unscrew the retaining bolt.
On some cars, the crankshaft pulley has to be removed. Unscrew the retaining bolt.
Removing the drive-belt cover
On most engines, some parts have to be removed before you can take the cover off the toothed belt.
Slacken the pivot-spring bolt with a special splined tool fitted to a socket wrench.
Slacken the pivot-spring bolt with a special splined tool fitted to a socket wrench.
Slacken the alternator adjuster bolts and push the alternator towards the engine to loosen the fan belt or alternator drive belt; ease the belt off. When refitting, tension it correctly as detailed in Checking, adjusting and refitting drive belts.nok oil seal catalog .
Usually, the cover can be removed without taking off the crankshaft pulley. Sometimes, however, it has to be removed; to . release it, unscrew the pulley retaining bolt and prise the pulley off with a screwdriver.
Give the crankshaft pulley two full clockwise turns to even out the tension in the belt. Make sure the ignition is switched off or the battery disconnected.
Give the crankshaft pulley two full clockwise turns to even out the tension in the belt. Make sure the ignition is switched off or the battery disconnected.
Unscrew the belt-cover bolts and carefully ease the cover off. The tensioner wheel is below the camshaft pulley.
Adjusting the tension on a Ford belt
Tighten the locking bolt first to hold the tensioner in its new position. Tighten the pivot-spring bolt, which has a precise torque setting.
Tighten the locking bolt first to hold the tensioner in its new position. Tighten the pivot-spring bolt, which has a precise torque setting.
The tension is set automatically by a spring when two bolts are slackened — a locking bolt and a pivot-spring bolt.
Slacken the locking bolt, on the left, first. To slacken the pivot-spring bolt you need a specially splined tool that fits into a socket-wrench handle; it can be bought at a Ford dealer’s spares department or at most car accessory shops.
On a Ford overhead camshaft engine, the tension is set automatically when two bolts are slackened on the tensioner.
To even out the tension in the belt, use a spanner or socket wrench on the crankshaft-pulley bolt and turn the crankshaft two full turns clockwise.nok oil seal catalog .
Tighten the locking bolt, then use the splined tool in a torque wrench to tighten the pivot-spring bolt. It has to be tightened to a precise torque setting; check the figure with a dealer or the car service manual.
Refit the drive-belt cover and fan belt.