From what I can tell, there are two, possibly three, different types of heat shields that can be found in an older 240D. I'm hoping some folks can weigh in on this topic, and specifically, what kind do I have!?
Standard Heat Shields:
These are the kind you get when you order new injectors. They have a 10mm aperture. These are definitely NOT in my Benz.
Original RE-USABLE Heat Shields (?):
Post #6 mentions this reusable shield. As the photos from this post are pretty identical to my photos, I'm assuming this is what I have. The aperture is about 6.5mm, as best as I can tell. I have tried PB, pounding on them with a wooden dowel, with a piece of steel, cranking the engine, a hook from underneath. They will NOT budge. I have yet to try the suggestion of screwing a 3/8" lag bolt into the aperture and prying them out that way. I'm nervous about gouging up the mating surface with the injector.
"Top Hat" Heat Shield:
Post #30 has nice pics of the difference between this style and the 10mm heat shields. Is this "top hat" style the same as the "re-useable" style? I do not yet know.
Here are photos of my prechamber. It does appear that there is some kid of heat shield installed. I'm just not sure how the heck I'm going to get them out to figure out what kind they are. What do you think? If they are the "reusable" ones, should I just leave them in there and not worry about it?
Hope y'all are having a happy Memorial Day weekend!
