Announcement

Collapse
No announcement yet.

M42 upper & lower oil pan replaced, thank you all!

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    M42 upper & lower oil pan replaced, thank you all!

    So after shaving my oil pan against a curb, I know I know, a few fellow forum members helped sourced the very expensive sump! Below are some tips for anyone that need them.
    • Lift the car safely, I used ramps plus stands, earthquake proof!
    • Remove engine mounts lower nuts. PB blaster is your friend, I soaked the hell of the engine mounts nuts and let them sit overnight.
    • Loosen the fan shroud, unclip the airbox or loosen the rubber boot, and remove the big harness plastic cover on the back of the engine. This is in preparation for the engine lifting.
    • Lift engine about 4 inches, use the front engine lifting bracket. THIS IS A MUST, it is physically impossible to remove/reinstall the upper oil pan without raising the engine. It is very easy if you use an engine support bar, got mine at Harbor freight for $60 with a coupon. Other people have removed the subframe but seriously using the engine support was very easy.
    • Remove oil dipstick tube, it is just supported by one bolt, then just pull out nice and easy.
    • Remove all oil pan bolts, do this by hand (NO POWER TOOLS), gently so you don't strip or brake anything, remember these are screwed into aluminum. Don't forget two long bolts in the back that you access through two holes on the transmission bell housing. Also there are 3 torx bolts that attach the upper oil pan to the transmission, these must be tightened last when you reinstall the pan.
    • Reinstall everything, I decided to buy new oil pans to eliminate the chance of any warped mating surface and hence oil leaks. Clean all mating surfaces neatly, clean the bolts or use new, use blue thread-locker, and grey rtv or honda bond to lightly dress your gaskets. Don't forget to replace the sump gasket. DO use a torque wrench and torque all bolts to 89 in-lbs, READ inch-pounds, it is a very low torque, so precision is a must to prevent stripping.
    • When lowering the engine, do it slowly and make sure the engine mounts get inserted correctly and don't get damaged.
    • Leave 24 hours for the rtv to cure. Bolts do not need to be retorqued from what I read. Put new oil and filter and go drive!
    Last edited by chrisca70; 06-24-2019, 08:56 AM.

    #2
    FYI - this should be posted in the M42 subform not the general discussion. But thanks for the detailed post!
    Steve Toronto
    1991 318is Brillantrot
    Build Thread

    Comment


      #3
      Originally posted by Powling View Post
      FYI - this should be posted in the M42 subform not the general discussion. But thanks for the detailed post!
      Done!
      Last edited by chrisca70; 06-25-2019, 12:41 PM.

      Comment

      Working...
      X