tiny coolant weeping from hose on thermotat housing and also from gap in housing

[monkeydave]

has anyone else has this at 8 years old jazz very tiny amount of coolant not dripping just evaporating from hose or thermostat housing i think it has been happening for quite a while as noticed expansion tank level going down a couple of mm per 500 miles

[paulhipw]

Have you changed the thermostat recently or is it the original?

I have just changed mine but used some Blue Hylomar Universal Gasket Jointing Compound on the sealing face and have had no leaks.

[monkeydave]

Have you changed the thermostat recently or is it the original?

I have just changed mine but used some Blue Hylomar Universal Gasket Jointing Compound on the sealing face and have had no leaks.

it is all origional i want to change top and bottom hose and all 4 clamps with the thermostat and gasket and maybe even the radiator cap too as it is nearly at coolant change time at 8 years even with only 41k on the clock

[aphybrid]

Not sure of the configuration in your car but on some engines there used to be a weep hole in this are to indicate when water pump seal was starting to leak. check where pump is and maybe prepare to change?

[Lord Voltermore]

When I were a lad I think the  consensus among amateur mechanics ,if not professionals , was that the sprung double wire type hose clips typically fitted by manufacturers were prone to cutting into the hose  and leaking , and best replaced with worm drive 'jubilee' type clips.

However the internet (which must be right ,eh?) says double sprung wire clips are  a better choice  for radiator hoses as they give a more consistent  clamping force   (not just cheaper and quicker to fit on the production line  )

If replacing clips you might want to research  the pros and cons of which type to use.

I think you are already aware of the tip to look for white stains (from escaped coolant evaporating ) not just wetness .