Help... my car is overheating

mrnickleye · 02-07-2007, 06:28 AM

Why, you ask, won't radiator sealer work on the 7M BHG problem.??

Because the "usual" BHG starts out as a tiny hole from a combustion chamber (usually #6 cyl) to a water passage.

The enormous pressure during combustion pushes the gasses 'into' the cooling system. This then builds up too much pressure and causes coolant to eventually over flow into the recovery bottle.

The sealant only works when the coolant is trying to leak 'out of' the cooling system to atmosphere. It plugs the hole.

02-07-2007, 06:28 AM	#22
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Sealant No Workie Why, you ask, won't radiator sealer work on the 7M BHG problem.?? Because the "usual" BHG starts out as a tiny hole from a combustion chamber (usually #6 cyl) to a water passage. The enormous pressure during combustion pushes the gasses 'into' the cooling system. This then builds up too much pressure and causes coolant to eventually over flow into the recovery bottle. The sealant only works when the coolant is trying to leak 'out of' the cooling system to atmosphere. It plugs the hole. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.