Bad/Weak water pump?????
I had posted a long time ago about my motor running hotter on the highway. RRR told me that my lower hose might be collapsing. I finally got around to changing the lower hose with one that has a spring inside. I took it out on the highway and nothing changed, it still runs around 200 degrees at 55 MPH. If I drive 70 it gets even hotter but in town (below 40 MPH) it stay around 180/185.
When I replaced the hose today I filled the radiator with water and anti-freeze and let it run with the cap off until I saw the water flowing inside the radiator. Well...it ran for a very long time and the temp went up to 180 and wouldn't go any higher. The cap was still off but I noticed that there was hardly any water moving looking through the open radiator cap hole. Every other car I've worked on usually has lots of water moving with the cap off. Anyway, after driving on the highway I came to the conclusion that the water pump must be weak or bad because it has very little flow and it doesn't get hot when sitting still.
My questions is.....When I looked up high flow water pumps for my '69 318 Barracuda they talk about AC or non AC, it there a difference.
I do have AC but what's the difference??? Any help with the low flow is appreciated!!
Thanks,
Treblig
I had posted a long time ago about my motor running hotter on the highway. RRR told me that my lower hose might be collapsing. I finally got around to changing the lower hose with one that has a spring inside. I took it out on the highway and nothing changed, it still runs around 200 degrees at 55 MPH. If I drive 70 it gets even hotter but in town (below 40 MPH) it stay around 180/185.
When I replaced the hose today I filled the radiator with water and anti-freeze and let it run with the cap off until I saw the water flowing inside the radiator. Well...it ran for a very long time and the temp went up to 180 and wouldn't go any higher. The cap was still off but I noticed that there was hardly any water moving looking through the open radiator cap hole. Every other car I've worked on usually has lots of water moving with the cap off. Anyway, after driving on the highway I came to the conclusion that the water pump must be weak or bad because it has very little flow and it doesn't get hot when sitting still.
My questions is.....When I looked up high flow water pumps for my '69 318 Barracuda they talk about AC or non AC, it there a difference.
I do have AC but what's the difference??? Any help with the low flow is appreciated!!
Thanks,
Treblig
