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From: F Murtz on 21 Mar 2010 03:17
Is there any other restriction in the system other than the thermostat?
With the thermostat out I disconnected the top hose and held it facing
up at the same level as the top of the radiator and with the engine
running the level in the hose and the level in the radiator stayed the
same. I would have thought the level in one would drop and the other
would overflow.I put a new pump in a few weeks ago so I can not figure
it out unless something between the pump and thermostat housing is
stopping flow.
From: Hachiroku ハチロク on 21 Mar 2010 11:39
On Sun, 21 Mar 2010 18:17:56 +1100, F Murtz wrote:

> Is there any other restriction in the system other than the thermostat?
> With the thermostat out I disconnected the top hose and held it facing up
> at the same level as the top of the radiator and with the engine running
> the level in the hose and the level in the radiator stayed the same. I
> would have thought the level in one would drop and the other would
> overflow.I put a new pump in a few weeks ago so I can not figure it out
> unless something between the pump and thermostat housing is stopping flow.


Did you wait until the engine got warm enough to open the thermostat?

Also, there could be a blockage in the radiator itself; and did you have
the heater set to hot or cold?


From: Ray O on 21 Mar 2010 13:49

"F Murtz" <haggisz(a)hotmail.com> wrote in message
news:4ba5c81e$1(a)dnews.tpgi.com.au...
> Is there any other restriction in the system other than the thermostat?
> With the thermostat out I disconnected the top hose and held it facing up
> at the same level as the top of the radiator and with the engine running
> the level in the hose and the level in the radiator stayed the same. I
> would have thought the level in one would drop and the other would
> overflow.I put a new pump in a few weeks ago so I can not figure it out
> unless something between the pump and thermostat housing is stopping flow.

With the thermostat removed, the coolant should circulate all the time.
Either the pump is not working or as Hachiroku suggested, the radiator is
clogged, or there is an obstruction elsewhere in the coolant circulation
system.
--

Ray O
(correct punctuation to reply)


From: F Murtz on 21 Mar 2010 21:04
Ray O wrote:
> "F Murtz"<haggisz(a)hotmail.com> wrote in message
> news:4ba5c81e$1(a)dnews.tpgi.com.au...
>> Is there any other restriction in the system other than the thermostat?
>> With the thermostat out I disconnected the top hose and held it facing up
>> at the same level as the top of the radiator and with the engine running
>> the level in the hose and the level in the radiator stayed the same. I
>> would have thought the level in one would drop and the other would
>> overflow.I put a new pump in a few weeks ago so I can not figure it out
>> unless something between the pump and thermostat housing is stopping flow.
>
> With the thermostat removed, the coolant should circulate all the time.
> Either the pump is not working or as Hachiroku suggested, the radiator is
> clogged, or there is an obstruction elsewhere in the coolant circulation
> system.


That is my problem, the radiator is not blocked, there is no thermostat.
I think it has to be the pump,(although it is new) Inexplicable,I will
just have to pull it to bits again.
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