more than likely to be housed just in the cast iron bit where the end of the water hose enters the engine as its the water inside the block getting hot causing it to open and cold water to enter and cool the block.....follow the main pipe from the rad...there could be an inner lip just where the hose enters to rest the thermo on only way to know if so is to pop the pipe off unfortunately.........post another mesage if youve a prob....good luck..
j, November 2008
