Genuine BMW 325i Oil Pump

BMW 325i Oil Pump Parts Questions & Experts Answers

• Oil Pump
  11417545939
  Q:

  How to remove the Timing Chain and oil pump in 2.0L four cylinder engine on BMW 325i?

  Posted by Chandler T.

  A:

  To get rid of balance shafts and oil pump, one must first drain the oil; remove the oil pan and install a special tool in the timing hole to retain the crankshaft securely in position. Then, remove the oil pump pick-up pipe and plastic cap on counterbalance shaft housing. After that use another tool to lock balance shaft in place while still immobolizing balance shaft/ oil pump sprocket with an extra tool. Finally, release timing chain tensioner, loosen tone screws on timing chain module and take out tone bolt for oil pump drive shaft. Note the locations of bolts and discard them for replacement during removal of balance shaft and oil pump assembly. Verify if any spacer bushings on damaged balance shaft are damaged then replace them accordingly. Separate oil pump from balance shaft housing. In case of damage or loss of any component during disassembly process, it is recommended that they should be replaced with new aluminum bolt(s) ensuring proper torque has been applied. Valve timing should be checked carefully so as to avoid problems later on when putting back everything together again.withdrawal look at step 1 this means after removing the crankshaft hub center bolt For example remove it by using two vibration damper bolts also has to be considered Vibratory fatigue fractures can result from engine vibrations that occur within their elastic limits which are generally detrimental such as excessive bearing clearance or misalignment according to OEM's service manual The flat side surfaces areas can be used as cam gear flats for wear As shown below if either condition is true then perform these steps If there are no marks this means replacing just enough gears will not give you accurate results The following figure illustrates removal of one piece fluid transfer tube Additionally, bendix gear must be removed before engaging a puller jaws into starter motor drive end plate Grooved disc shaped elements have become more popular due to their mechanical advantages However cracks can develop leastwise at high miles between teeth for instance This equipment accelerates the flywheel during inertia of engagement to supply meshing elements with required energy For instance, excess lubrication can wash out grooves and fill them up again with oil Ensure that there is no damage on teeth for proper working of the equipment Because a lot of force is exerted on these parts, any dent or chip should be replaced in order to avoid further damage.

  Answered by BMW Parts Specialist Noah / Nov 13, 2025