I did a search, read the faq section. My 85 sdl has a glow plug relay going bad, so I bought the bosch fastglow kit from Fastlane. I have service records for the car, and it looks like the glow plugs were changed at 105k, so my thought is I may as well change them now.With my luck I would change the relay just to have the glow plugs go bad two days later.
Any special tips? Will using penetrating oil on the glow plugs for a few days make it any easier to get them out? Do I really need a reamer? Any and all advice will be greatly apreciated.