Author Topic: M42 Head Gasket and Timing Question  (Read 1981 times)

jbgood

  • Newbie
  • *
  • Thank You
  • -Receive: 0
  • Posts: 4
    • View Profile
M42 Head Gasket and Timing Question
« on: October 21, 2020, 08:43:20 PM »
I am in the process of putting the M42 from my '91 318i convertible back together. It was about time for a timing refresh when the head gasket went and demanded attention.
I have refreshed, refurbished and resealed countless things along the way, now I am about to put the cylinder head back on the block. I have been reading obsessively and taking lots of pictures; I plan to add my observations and lessons learned here once it is complete.

One question for the forum experts, since I have found conflicting information:
Do I need to add sealant (RTV) to the channel the rubber gasket fits into on the top of the timing case? (#10 in the RealOEM picture below)
Thank you in advance for any advice or guidance.






monty23psk

  • Legendary
  • ******
  • Thank You
  • -Receive: 17
  • Posts: 1291
    • View Profile
Re: M42 Head Gasket and Timing Question
« Reply #1 on: October 22, 2020, 07:20:33 AM »
From factory manual, yes, you need to add some sealan where the profile gaskets meets with head/block. Check attachment.
Alex  88 m5 | 91 318is | 19 Subaru Ascent
BMW Tool Rentals & Fender Roller