# Coolant flush alternative....

Posted by Will (93 4dsc) on September 19, 2004 at 16:13:02: Hi Guys, Hot damn, my engine block drain plugs are seized! I had planned on flushing my coolant today, but I didn't feel comfortable using fire to try and unseize them. So do you guys know of another method I can follow to flush coolant that doesn't: a) Require me to drain the engine block plugs, and b) Unscrew the radiator drain plug (I don't trust plastic plugs being durable)??? Could I unattach either the lower rad hose or the thermostat hose to drain? Replys: Thanks guys!! n/m Will (93 4dsc) 08:27:33 9/21/2004 (0) just pull the rad hoses and stuff a water hose on full blast in one end.. nm Matt (93SE) 20:55:52 9/19/2004 (4) I heard you don't want to do that only because the water from the hose is at a higher pressure than what the cooling system is supposed to tolerate. n/m mizeree_x (92SE 5-speed) 05:57:18 9/20/2004 (3) considering that the radiator cap is good to 14-18 psi, i doubt it'll ever get that high with a garden hose. nm Alex (90 300zx) 07:24:34 9/20/2004 (1) Most residential water supply networks are 30-40psi at the faucet.. but good luck stuffing a water hose in a radiator and holding enough water back to get the pressure that high. nm Matt (93SE) 08:10:06 9/20/2004 (0) that's why you make sure the other end is open. it doesn't build up pressure that way. nm Matt (93SE) 06:25:46 9/20/2004 (0) That's strange, my engine drain plugs came off much more easily than I thought....... mizeree_x (92SE 5-speed) 20:28:03 9/19/2004 (0) My 13 year old radiator plug works great. If you are uncomfortable, just buy a new one first. They are just a few bucks. n/m Pervis Anathema (91 SE) 16:15:30 9/19/2004 (0)

Name: |
E-Mail |
Car: |
Subject |
Message:
: Hi Guys, : Hot damn, my engine block drain plugs are seized! I had planned on flushing my coolant today, but I didn't feel comfortable using fire to try and unseize them. So do you guys know of another method I can follow to flush coolant that doesn't: a) Require me to drain the engine block plugs, and b) Unscrew the radiator drain plug (I don't trust plastic plugs being durable)??? : Could I unattach either the lower rad hose or the thermostat hose to drain?