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My 1995 Laguna has a curious water loss problem, every couple of weeks (sometimes longer) it will go from the maximum mark to the minimum in a couple of days, yet at other times it will stay at the max mark for two weeks or more. I can find no visable leakage, it seems to be running ok, apart from a bit of rough running that I think is down to it needing new dist. cap and rotor arm (which me being lazy I have a new set in the boot, just need to get round to fitting them) Any ides on the water problem????
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flakey cap on the expansion box ?
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I would check the head gasket. This could also account for the rough running, especially when the engine is cold.
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But the oil is fine, not a hint of white stuff, so would tend to think it was not the head gasket (hope not anyway!!!)
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Water does not necessarily get into the oil. Depends on how gasket has blown - it might be going straight into the cylinder.
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But would it manifest as an intermittent water loss? I would have thought that a HG failure would mean constant water loss. I have sort of thought it may be the water pump seal weeping when stopped in a certain position!!
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But would it manifest as an intermittent water loss? I would have thought that a HG failure would mean constant water loss. I have sort of thought it may be the water pump seal weeping when stopped in a certain position!!
Yes, I agree - would expect it to be constant. Can't believe waterpump theory though. Try pressure-testing the system.
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dont these goonas have dicky radiators and dicky heater matrixes? (half metal half plastic)
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TourVanMan < yes its RF reborn >
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I have heard of Laguna MK1's suffering from heater matrix failure but I've not come across failing radiators over and above the rate one would expect.
When my VW developed a blown head gasket, the water loss was not constant, some weeks I would need to put about a pint in, other weeks nothing. In this case the oil was definitely getting contaminated with water, the evidence was clear on the oil filler cap.
I would check the heater matrix (is there any damp in the cabin?) and then get the head gasket looked at. A gas analysis of the coolant should indicate if anything's wrong.
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