Radiator drain / flush question.
Thread Starter
Instructor
Joined: Sep 2006
Posts: 240
Likes: 58
From: Jacksonville, Florida
Radiator drain / flush question.
I tried doing a search but could not find the answer to my specific question.
I am attempting to drain the radiator. I flushed it with water and removed the lower plug in the radiator. How necessary is it to remove the plugs from the block, and where are they? Also, is there a flush that is non corrosive. I dont want to use anything that may cause damage to the radiator and water pump. I see a little sludge in the thermostat housing, but the radiator looks in pretty good shape from what I can see looking into the fill neck. The car sat for a few years. I have new hoses, and a new thermostat to install.
I am attempting to drain the radiator. I flushed it with water and removed the lower plug in the radiator. How necessary is it to remove the plugs from the block, and where are they? Also, is there a flush that is non corrosive. I dont want to use anything that may cause damage to the radiator and water pump. I see a little sludge in the thermostat housing, but the radiator looks in pretty good shape from what I can see looking into the fill neck. The car sat for a few years. I have new hoses, and a new thermostat to install.
Pro
Joined: Dec 2005
Posts: 699
Likes: 0
From: Vettemod.com For the C3 People
St. Jude Donor '06
No need to remove freeze plugs, (located on side of block, I doubt you could get them out and certainly not back in without pulling the engine) just flush it and add a good quality anti freeze. Any auto store flush is fine, follow instructions.
If your water pump is old, no matter mileage, may consider replacing. They are cheap, $ 45, wrecker call on side of interstate half way to Bowling Green ain't cheap!
tt
If your water pump is old, no matter mileage, may consider replacing. They are cheap, $ 45, wrecker call on side of interstate half way to Bowling Green ain't cheap!
tt
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Here is a link for a proper flush.
http://forums.corvetteforum.com/show...ghlight=oxalic
There is 1 drain 1/4" npt plug on each side of the block that should be used to flush and drain the block. It's a time consuming procedure that is well worth doing properly.
If your componants can't survive a proper flush, then they will fail on you anyway.
http://forums.corvetteforum.com/show...ghlight=oxalic
There is 1 drain 1/4" npt plug on each side of the block that should be used to flush and drain the block. It's a time consuming procedure that is well worth doing properly.
If your componants can't survive a proper flush, then they will fail on you anyway.
