BMW 11417584079 Chain

You can Select Your Vehicle to check if 11417584079 fits your vehicle.

The timing system is intricate and it should only be done by highly experienced people. Serious engine damage could result. If you are unsure of your own capability, a specialist in this field should be consulted before any attempt is made for this repair. Check and ensure that the work is correct prior to starting any machine. Removal, on the other hand, comprises removal of valve cover, crankshaft front oil seal, drivebelt(s), and auxiliary drivebelt tensioner. Tie down the engine at TDC for No 1 cylinder then take out the timing chain tensioner. Release the crankshaft pulley hub and make a tool to hold it in place. Unscrew and remove the bolt from pulley hub then draw out the hub from the crankshaft. Remove plugs from timing chain cover and take away all timing chain guides provided there are no problems encountered with its disengagement from sprocket. Detach VANOS adjusting units then lift up timing chain module together with chain plus crankshaft sprocket. In case of necessity conduct disengagement of the chain as well as removing it from such module. Installation involves making sure that No 1 piston still remains at TDC thus chaining can now engage with crankshaft sprocket while putting down timing module along with chain; get through sprocket using crankshaft pulley hub respectively by moving lower part below pulley first; push new retaining bolt of this item into place and torque accordingly - meanwhile fix new oil seal properly while fastening these chains; just like one way was removed gaskets will also need replacement same applies to seats being replaced while aluminum bolts tightened as per their specific torque values among other things Finally install drivebelt(s).

To start removing the timing system, a complex procedure should be carried out. That is, begin by taking away spark plugs and valve cover. Subsequently, remove crankshaft pulley, crankshaft front oil seal, drivebelt and oil pan. Make sure that the engine is at TDC No 1 cylinder and press back the chain tensioner using a special tool to lock it for oil pump drive chain. Locking tools are used for automatic or manual tranny models to keep flywheel from rotating and preventing crankshaft turning. Take out the centre bolt of the crankshaft and after this remove intake plus exhaust camshafts VANOS adjusting units. Turbocharger wastegate vacuum unit bolts and timing chain tensioner must be removed. Remove Allen-head plugs on the crankshaft pulley hub in order to free it up for extraction along with timing chain module guides Torx screws have to be taken put of place as well. Unscrew M7 (or M8 on some engines) bolts holding timing chain module to cylinder head and lift off module with chain and sprocket together. Note its orientation, detach if required from sprocket at this stage itself by positioning piston No 1 at TDC whilst counterbalance shaft gets locked up again through use of a special tool during installation stage Collar must face towards side of crankshaft where sprocket will be located when meshed with collar Lower into position so that timing chain with module can then be hung down over this end onto which new hub-retaining bolt has already been inserted Then torque down center bolt of hub while carefully locking flywheel against rotation or prevention Rotate engine two full revolutions clockwise: check that flywheel can still occupy positions Meanwhile just reverse procedure replacing gaskets seals aluminum bolts tighten all fasteners according to specified torque values fit drive belt.

The non-turbo and turbo camshaft timing chain, vibration damper (front pulley) and related parts are similar but not interchangeable; repair requires special tools and new parts; refer to the entire procedure before proceeding. Bent valves from piston contact which can be resulted from disassembly, removal and assembly of camshafts or camshaft adjustment units without special tools. During the process it is necessary to keep the crank and the camshafts locked against rotation with BMW special tools. Start with a scan tool to clear or record the fault memory of the ECM and then turn off the engine then take out the key. Go further to take off the upper and lower cabin microfilter housings, the right strut tower brace, ignition coil cover and disconnect the ignition coil connectors and put the harness away. Dis-connect the ignition coils and the cylinder head cover after which the spark plugs are eliminated. For non-turbo engines position the crankshaft in such a way that cylinder 1 is in TDC firing position with the intake camshaft lobe facing upward and the exhaust camshaft lobe facing downward. When the turbo engines are in position to satisfy requirements, cylinder 1 should be set in TDC firing position and the lobes of 6 should be formed downwards and apart from each other. Disconnect the timing chain tensioner, watch for dripping oil and lift the car to have access to the engine compartment splash guard and the accessory belt. Take off the vibration damper and pull out the crankshaft front seal, insert the crankshaft locking tool through the bell housing into the flywheelOil supply to the crankshaft front and main bearings will be eliminated by rotating the crankshaft until the front end of the crank hits the front bearer and lock it at TDC. Pull of the vibration damper hub by using special tools while tightening the counter hold on the hub. Loosen the plugs at the timing chain housing, then take off the chain guide and tensioning rail bolts, and then, with the aid of the special tool set, secure the camshafts. Both the intake and exhaust camshaft adjustment units should be pulled out then the timing chain assembly and crankshaft sprocket lifted out of the housing. The new timing chain has to be fitted on the pulley /variator cover properly while fitting the crankshaft sprocket in the correct position in reference to the timing chain, and the installment of the timing chain assembly must be done under tension. Bolt the vibration damper hub back in its position by new bolts and follows the standard torque procedures in a manner that cannot allow the crankshaft to rotate. Replace the crankshaft front seal and camshaft adjustment unit, if the timing is improper it should be corrected. Last, the chain tensioner should be fitted, along with the new sealing O-ring; the locking tools should be removed; the engine should be rotated two full revolutions; and the camshaft timing should be checked before the reassembly of the engine.

When installing the new pump, replace all aluminum bolts and tighten all fasteners to their specified torque.

Engage the chain with the crankshaft sprocket, making sure the collar points towards the crankshaft side, and firmly trap the sprocket.

When installing the new pump, replace all aluminum bolts and tighten all fasteners to their specified torque.

Begin by draining the oil and removing the oil pan.

The caution is that the timing system is complex and should only be performed by highly experienced individuals. Mistakes can cause severe engine damage.

Before attempting this repair, consult an expert if unsure of your abilities.

Lower the timing chain and module in place, threading the crankshaft pulley hub through the sprocket, and insert the new hub retaining bolt.

Release the timing chain tensioner, loosen the timing chain module Tone screws, and remove the oil pump drive shaft Tone bolt.

When installing the new drive chain, replace all aluminum bolts and tighten all fasteners to their specified torque.

Install and torque the timing chain assembly, rail, and guide bolts. With the crankshaft locked, insert a new bolt with the hub for the crankshaft and use an angle protractor to torque the center bolt.

To install, reverse the removal steps, replacing all aluminum bolts and ensuring proper torque specifications are met. Verify valve timing.

Ensure gasket material is removed from the face of the cylinder head, clean the sealing face, and keep it free of oil.

The M54 engine utilizes a pair of chains to operate the camshafts.

Remove the intake camshaft sprocket mounting nuts and the corresponding spring plate, then take out the torx bolts from the exhaust camshaft sprocket.

Rotate the crankshaft to place cylinder 1 in TDC (Top Dead Center) firing position, ensuring the cylinder 1 intake camshaft lobe points upward.