Ken
I have run all the checks you said and they are all O.K.
The radiator is at max so I am not losing any water.
The only other thing I can think is thee is some for of partial block in the
matrix restricting the flow.
I now notice that the gurgling is only if I reve the engine up.
"Ken Phillips" <ken-demungneptune.DeleteThis@supanet.com> wrote in message
news:8LPod.462$%c7.13@newsfe1-gui.ntli.net...
>
> "noreply@invalid" <noreply.DeleteThis@ntlworld.invalid> wrote in message
> news:gNOod.1868$tU6.1576@newsfe6-win.ntli.net...
> > 1988 740.
> >
> > I can hear the water in the matrix gurgling as I drive along.
> > The gurgling last only a few seconds and happens about every 20 seconds
or
> > so.
> > Any ideas what happening with it.
> >
> >
> Air or vapour in the cooling circuit, probably caused by low coolant level
> or headgasket failure, undo the coolant filler cap after a running the
> engine for a little while (be carefull, there might be pressure in there)
> smell inside the reservoir, If it smells exhausty, or petrolly, then the
> headgasket has breached, otherwise check the inside of the oil filler cap,
> the presence of quantities of white gunk indicate possible head gasket
> breach, otherwise you have a normal coolant leak somewhere, the rad cap
> isn't sealing properly, or it just hasn't been topped up or checked for
> ages.
>
> Top up the coolant now!!! If the coolant is low enough for vapour/air to
be
> being pumped through the heater matrix, then the level is critically low,
> and you are risking overheating your engine.
>
> Ken Phillips
>
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