Poida4x4
14th May 2009, 03:43 PM
Gudday
My 200Tdi Disco usually runs just under half around town. When I drive on the highway for a few days it will regularly go over half and almost to 3/4 when I will pull back a bit and take it easy. It's never been that much of an issue.
But last week I bought a boat and while I was towing it home it got up to nearly 3/4 very quickly. The trailer tyres were flat so I pumped them up but it still ran a bit hot. It has thermofans on the front that I noticed weren't working so I took the grill off and had a look but I couldn't work it out so I took it into a radiator place to get it flushed out and investigated.
They flushed it out, found that the thermofans come on when the aircon is on, and said that the viscous fan is no good. So I did a bit of research and got a bit of hose to test the viscous fan out with. From what I understand, when the vehicle is at running temp the viscous fan should be hard to stop with the hose but this isn't the case for mine. It's not exactly easy either, and I'm pretty sure I noticed a difference from below running temp (ie - easier to stop it warming up to running temp than at running temp).
The thing is, I hooked the boat up to test it out and I couldn't get the gauge up to half no matter how hard I tried. It just stayed cool, so I was able to stop the fan with the hose.
Problem solved? I hope so. Can you guys stop your fan at running temp? Also, bear in mind that the grill is still off and this will effect cooling. It'll go back on as soon as I get a chance....
My 200Tdi Disco usually runs just under half around town. When I drive on the highway for a few days it will regularly go over half and almost to 3/4 when I will pull back a bit and take it easy. It's never been that much of an issue.
But last week I bought a boat and while I was towing it home it got up to nearly 3/4 very quickly. The trailer tyres were flat so I pumped them up but it still ran a bit hot. It has thermofans on the front that I noticed weren't working so I took the grill off and had a look but I couldn't work it out so I took it into a radiator place to get it flushed out and investigated.
They flushed it out, found that the thermofans come on when the aircon is on, and said that the viscous fan is no good. So I did a bit of research and got a bit of hose to test the viscous fan out with. From what I understand, when the vehicle is at running temp the viscous fan should be hard to stop with the hose but this isn't the case for mine. It's not exactly easy either, and I'm pretty sure I noticed a difference from below running temp (ie - easier to stop it warming up to running temp than at running temp).
The thing is, I hooked the boat up to test it out and I couldn't get the gauge up to half no matter how hard I tried. It just stayed cool, so I was able to stop the fan with the hose.
Problem solved? I hope so. Can you guys stop your fan at running temp? Also, bear in mind that the grill is still off and this will effect cooling. It'll go back on as soon as I get a chance....