i have this prob to help us
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| Radiator Overflow Losing water https://www.ausmini.com/forums/viewtopic.php?f=2&t=16398 |
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| Author: | Gerard [ Sun Feb 19, 2006 9:39 pm ] |
| Post subject: | Radiator Overflow Losing water |
Hi all I hope you can help on this one Whenever I go out for a good run up the freeway and then stop.... The Radiator Overflow leaks out sometimes up to a litre of coolant/deminwater..... I have tried a couple of caps, do I need a new long cap like http://cgi.ebay.com.au/Mini-Radiator-Ca ... dZViewItem Cheers Gerard |
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| Author: | clubby123 [ Sun Feb 19, 2006 10:09 pm ] |
| Post subject: | |
i have this prob to help us
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| Author: | DJG-14U [ Sun Feb 19, 2006 10:43 pm ] |
| Post subject: | |
From memory someone told me it was related to a head gasket problem. As in the head gasket is going. It also happens to Granny all the time and hence why I carry a bottle of water around with me now... But perhaps someone else might be able to explain this in more detail... |
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| Author: | drmini in aust [ Mon Feb 20, 2006 6:36 am ] |
| Post subject: | |
It is `normal' to lose approx 1/2 the top tank out the overflow with a 1275 particularly. People have whinged about this ever since the 1275S came out. Water expands when heated, if you fill it to the brim it has to go somewhere. Later Clubby radiators had a `level' mark inside, below the neck. It's about 1/2 way up, funny that. 
Bear in mind at operating temp the rad is actually full, each time you warm it up it just expels the air out of the tank as the water expands. 
If you are paranoid about it, fit a Moke overflow header tank setup. Or a plastic tank off a Jap car and a recovery type cap. |
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| Author: | Gerard [ Mon Feb 20, 2006 8:40 am ] |
| Post subject: | |
thanks again kev |
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| Author: | matt van'74 [ Mon Feb 20, 2006 10:59 am ] |
| Post subject: | |
i have fitted an oveflow tank to my van and it is working a treat 
Mine is out of a morris 1100s. Once you have your overflow tank get some 1/4 inch tubing from the hardware store you connect the tubing to the radiator where the oveflow tube would normally be then connect this to the overflow tank. Make sure you have a spring cap on the overflow tank and just a rubber seal cap on the radiator. Then fill up the radiator and the overflow tank. when the water expands in the radiator it is forced into the overflow tank where it condenses and runs back into the radiator. Very simple yet effective. or you can just get a coke bottle and some 1/4 inch tubing and just have the overflow going into the bottle. You have to empty this back into the radiator fairly regularly though cheers |
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