VS Commodore coolant replacement

[Ext User(Cam)]

Hi NG,

I've just replaced the water pump in my Series I VS V6 and am now replacing
the coolant. I've got the ridgy-didge Holden stuff and the pellets all mixed
and am having trouble getting all the coolant ('sposed to be around 12
litres) into the system.

I've noticed a thumbscrew on the top of the radiator outlet on the block.
I'm guessing that this can be undone to allow air to escape when replacing
the coolant.

Could someone please confirm this. I'd hate to inadvertently adjust
something ...

I do have a Gregory's for this model but I've left it at work and can't get
to it.

Cheers,

Cam

[Ext User(Casper)]

"Cam" <dummyregister@hotmail.com> wrote in message
news:4310438e@duster.adelaide.on.net...
> Hi NG,
>
> I've just replaced the water pump in my Series I VS V6 and am now
> replacing
> the coolant. I've got the ridgy-didge Holden stuff and the pellets all
> mixed
> and am having trouble getting all the coolant ('sposed to be around 12
> litres) into the system.
>
> I've noticed a thumbscrew on the top of the radiator outlet on the block.
> I'm guessing that this can be undone to allow air to escape when replacing
> the coolant.
>
> Could someone please confirm this. I'd hate to inadvertently adjust
> something ...
>
> I do have a Gregory's for this model but I've left it at work and can't
> get
> to it.
>
> Cheers,
>
> Cam

Unless you remove the knock sensors (not recomended that you attempt!) ,
there remains about 3litres of coolant in the block.

Yes, the screw is an airbleeder, but should not be necessary to use this...

>
>

[Ext User(zonie)]

You will need to open the bleeder screw on the outlet. It it there to bleed
the air as you fill the cooling system. May also need to open it as the
engine warms up for the first start after coolant drain. Scott

[Ext User(Clockmeister)]

"Casper" <someone@microsoft.com.au> wrote in message
news:43104a15$0$22099$afc38c87@news.optusnet.com.a u...
>
> "Cam" <dummyregister@hotmail.com> wrote in message
> news:4310438e@duster.adelaide.on.net...
> > Hi NG,
> >
> > I've just replaced the water pump in my Series I VS V6 and am now
> > replacing
> > the coolant. I've got the ridgy-didge Holden stuff and the pellets all
> > mixed
> > and am having trouble getting all the coolant ('sposed to be around 12
> > litres) into the system.
> >
> > I've noticed a thumbscrew on the top of the radiator outlet on the
block.
> > I'm guessing that this can be undone to allow air to escape when
replacing
> > the coolant.
> >
> > Could someone please confirm this. I'd hate to inadvertently adjust
> > something ...
> >
> > I do have a Gregory's for this model but I've left it at work and can't
> > get
> > to it.
> >
> > Cheers,
> >
> > Cam
>
> Unless you remove the knock sensors (not recomended that you attempt!) ,
> there remains about 3litres of coolant in the block.
>
> Yes, the screw is an airbleeder, but should not be necessary to use
this...
>

Wrong advice.

It is very necessary to get the air out of the system. The best way to do
that is to open the bleeder by loosening the screw a few turns with a
flathead screwdriver whilst at the same time topping up the coolant in the
radiator. You will need to use something to raise the radiator neck to allow
gravity to do it's thing, so an old radiator hose or similar stuffed into
the radiator filler hole will do the trick.

Don't run the engine whilst you are doing it, and once a steady stream comes
out of the bleeder close it off and you are done.

[Ext User(Waughy)]

Cam wrote:
> Hi NG,
>
> I've just replaced the water pump in my Series I VS V6 and am now replacing
> the coolant. I've got the ridgy-didge Holden stuff and the pellets all mixed
> and am having trouble getting all the coolant ('sposed to be around 12
> litres) into the system.
>
> I've noticed a thumbscrew on the top of the radiator outlet on the block.
> I'm guessing that this can be undone to allow air to escape when replacing
> the coolant.
>
> Could someone please confirm this. I'd hate to inadvertently adjust
> something ...
>
> I do have a Gregory's for this model but I've left it at work and can't get
> to it.
>
> Cheers,
>
> Cam
>
>


Along with Clockies tips, have the heater control set to hot, which
should have been done for the drain anyway.

[Ext User(Clockmeister)]

"Waughy" <NA@noaddress.net> wrote in message
news:431100a1$0$23738$afc38c87@news.optusnet.com.a u...
> Cam wrote:
> > Hi NG,
> >
> > I've just replaced the water pump in my Series I VS V6 and am now
replacing
> > the coolant. I've got the ridgy-didge Holden stuff and the pellets all
mixed
> > and am having trouble getting all the coolant ('sposed to be around 12
> > litres) into the system.
> >
> > I've noticed a thumbscrew on the top of the radiator outlet on the
block.
> > I'm guessing that this can be undone to allow air to escape when
replacing
> > the coolant.
> >
> > Could someone please confirm this. I'd hate to inadvertently adjust
> > something ...
> >
> > I do have a Gregory's for this model but I've left it at work and can't
get
> > to it.
> >
> > Cheers,
> >
> > Cam
> >
> >
>
>
> Along with Clockies tips, have the heater control set to hot, which
> should have been done for the drain anyway.

Good point, forgot to add :-)

[Ext User(Casper)]

"Clockmeister"
> "Casper"
>> "Cam"
>> > Hi NG,
>> >
>> > I've just replaced the water pump in my Series I VS V6 and am now
>> > the coolant. I've got the ridgy-didge Holden stuff and the pellets all
>> > and am having trouble getting all the coolant ('sposed to be around 12
>> > litres) into the system.

>> > I've noticed a thumbscrew on the top of the radiator outlet on the
>> > I'm guessing that this can be undone to allow air to escape when
>> >
>> > Could someone please confirm this. I'd hate to inadvertently adjust
>> > something ...
>> > I do have a Gregory's for this model but I've left it at work and can't
>> > Cheers,
>> > Cam

>> Unless you remove the knock sensors (not recomended that you attempt!) ,
>> there remains about 3litres of coolant in the block.

>> Yes, the screw is an airbleeder, but should not be necessary to use
> this...

> Wrong advice.

oops my bad - came straight from gregories...

"This engine is equipped with an air bleeder valve on the thermostat cover.
The valve is used when refilling coolant using the manufacturers special
tool AU425. It is not necessary to open the valve when refilling the
cooling system using the procedure below"

and thus follows a simple drain/refill procedure, ending with ...

"start and run the engine for 20minutes to purge any air that may be trapped
in the cylinder heads."

> It is very necessary to get the air out of the system. The best way to do
> that is to open the bleeder by loosening the screw a few turns with a
> flathead screwdriver whilst at the same time topping up the coolant in the
> radiator. You will need to use something to raise the radiator neck to
> allow
> gravity to do it's thing, so an old radiator hose or similar stuffed into
> the radiator filler hole will do the trick.

I usually upend a 2L coke bottle full of water straight down the radiator
whilst bleeding...

> Don't run the engine whilst you are doing it, and once a steady stream
> comes
> out of the bleeder close it off and you are done.

[Ext User(moon)]

Another way to do it is a method Holden released for VL which works just as
good. get an old radiator cap and cut off the valve and spring, leaving just
the outer seal. Fill system as much as you can then fit modified cap. Remove
bleed screw and push garden hose over overflow pipe (from bottle) Fill
cooling system through overflow hose until water comes out of bleed hole.
Refit screw and good cap. This does just the same job as the extension on
the filler neck but heaps faster.