I am in the process of changing the coolant pipes under the intake manifold of a BMW M54 engine. I have successfully cleaned out the broken plastic that was left behind but was still left with melted on oring material inside the bores. I cleaned out all the remaining material using a scotchbrite wheel on a dremel.
Now that everything is clean it's obvious that the area where the oring seats has become pitted from corrosion.
I've posted this on a BMW forum and it seems many recommend coating the oring with RTV to ensure a seal. I was always taught that putting any type of sealant on an Oring is wrong.
Will a new oring seal against the pitting? I really would like to avoid using any RTV if possible.
What is the best solution to ensure a leak free seal?
Now that everything is clean it's obvious that the area where the oring seats has become pitted from corrosion.
I've posted this on a BMW forum and it seems many recommend coating the oring with RTV to ensure a seal. I was always taught that putting any type of sealant on an Oring is wrong.
Will a new oring seal against the pitting? I really would like to avoid using any RTV if possible.
What is the best solution to ensure a leak free seal?