Gents,

Among other things, I'm changing out my glow plugs. You guys weren't kidding about removing the lower #4 and #5 air intake bolts! As I assumed, the intake pipes (chambers?) have hardened and oily soot in them. Some are worse than others, but not as bad as I've seen on other cars---Jeremy's OM606 pics come to mind.

Anyways, I've read a few posts from a few years regarding various methods from scraping + shop vac'g the intake pipes of any loose debris to soaking them with WD40 or some other type of solvent to loosen and then wipe up any remaining soot deposits. And then there's "leave it as is". I can't decide which way to go. I'd figure soaking it with something and then wiping later would be better. Can anyone whose done this provide some feedback?

Thanks,
Bob

Attached Thumbnails