Today I went to change out the coolant, hoses and thermostat. I went to unbolt the first one on top. It gave me some resistance, but I figured that was because the engine was stone cold and it is an aluminum housing. Well the damn head came right off. I didn't dare try to remove the other 2 bolts after that. Will this leak on me and what can I do. Generally when this type of thing happens you drill out the old bolt, but there is only about 6-8 inches of clearance before you hit the fan shroud. Any advice would greatly be appreciated. At this point I have added as much coolant the engine will take cold. I haven't started the engine yet to get the coolant flowing.
1994 MB E320 Coupe (199,500 mi)
1992 MB 190E 2.6 (173,000 mi)
1983 Porsche 911SC (148,000 mi)
2004 Volvo V70 2.5T (198,000 mi)
President of CT/Westchester Section