After flushing, ALWAYS use distilled water with or without antifreeze.
Mineral deposits are usually caused by the use of tap water in cooling
systems.
Danny V.
'58 MGA
'79 MGB V-6
----- Original Message -----
From: "Max Heim" <max_heim@sbcglobal.net>
To: "MG List" <mgs@autox.team.net>
Sent: Sunday, March 08, 2009 2:27 PM
Subject: Re: [Mgs] Flushing the cooling system?
> The rest of the system has a constant flow of coolant. The heater only
> gets
> flow if the valve is open. If it is seldom opened, it can become clogged
> (as
> you know).
>
> So, yeah, there is probably some muck, but it is unlikely anything is
> actually blocked (or you'd know about it).
>
> I have flushed systems with water from the hose (after draining the
> coolant,
> of course). You can buy an inexpensive flush-and-fill kit that includes a
> fitting that splices into a heater hose, that has the garden hose thread.
> You have to remove the thermostat and replace the housing in order to get
> a
> thorough flush. You also have to leave a drain open, possibly the radiator
> stopcock.
>
>
> on 3/7/09 11:03 PM, Simon Matthews at simon.d.matthews@gmail.com wrote:
>
>> On investigating why my MGA heater was not functioning, I discovered
>> that the heater control valve was completely full of scale. I do mean
>> completely.
>>
>> This made me wonder what the rest of the cooling system might be like.
>> Does anyone have any recommendations? Don't worry about it? Flush with
>> something? If so, what?
>>
>> Regards,
>> Simon
>
>
> --
>
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the primer red one with chrome wires
>
>
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