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Author Topic: Using Coolant  (Read 5263 times)

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Bo Bo

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Using Coolant
« on: 24 June 2007, 20:40:49 »
I'm sure this has been a hundred times before but........

I'm using a lot of coolant every so often. Did two trips across town yesterday & the expansion tank was almost empty, similar trip today & haven't used any.

No obvious signs of a leak & it's running at normal temp?
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JamesV6CDX

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Re: Using Coolant
« Reply #1 on: 24 June 2007, 20:42:19 »
Quote
I'm sure this has been a hundred times before but........

I'm using a lot of coolant every so often. Did two trips across town yesterday & the expansion tank was almost empty, similar trip today & haven't used any.

No obvious signs of a leak & it's running at normal temp?

check usual suspect - HBV. And get under the car, and look for leaks / drips down the passenger side of the bellhousing.

Can you fit your hands in the HBV area?  ::)  ::)  ;D
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Re: Using Coolant
« Reply #2 on: 24 June 2007, 20:58:16 »
Quote
Can you fit your hands in the HBV area?  ::)  ::)  ;D
Hhmm, I'll give it a try.

I've looked under the car from the front with the engine running (& not) & have seen one drop from the passenger side near the wheel but with all the rain recently I've not been able to see anything more.....
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Admin

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Re: Using Coolant
« Reply #3 on: 24 June 2007, 21:04:08 »
Mysterious loss of coolant is most likely to be oil cooler plate seal.

Take plenum and inlet bridge off, exect to see signs of coolant.
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Re: Using Coolant
« Reply #4 on: 24 June 2007, 21:25:01 »
I think the Oil Cooler Plate was the problem with mine, when I had got everything stripped off i could see water around the edge of the plate, not as much to be honest as i thought there would be, suppose it evaporates.. but then you need to remove the Plate from the Cooler in order to get out the Plate... so do you fit a new oil cooler whilst your there?? even though the old cooler didn't look to bad I did change it was £95 from Vauxhall without TC.. Also the coolant bridge seals are only pence :y
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Re: Using Coolant
« Reply #5 on: 24 June 2007, 21:45:02 »
Intermittent, but large amounts of coolant loss, in my experience, is HBV (drivers side Bo Bo ;)).  Leaking stats and cooler plates tend to be far from intermittent.....
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Bo Bo

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Re: Using Coolant
« Reply #6 on: 24 June 2007, 21:51:54 »
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Intermittent, but large amounts of coolant loss, in my experience, is HBV (drivers side Bo Bo ;)).
Would this be more obvious with the engine running or not and/or heating on/off?
« Last Edit: 24 June 2007, 21:52:31 by paulmccristall »
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hotel21

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Re: Using Coolant
« Reply #7 on: 24 June 2007, 22:04:11 »
No direct experience but, from memory of posts on here, yes to whether the heater is on/off.....
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Re: Using Coolant
« Reply #8 on: 24 June 2007, 22:04:17 »
I would say HBV as its intermittent so will depend on what the climate is trying to do with the bypass valve.
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Re: Using Coolant
« Reply #9 on: 24 June 2007, 22:09:41 »
Quote
Quote
Intermittent, but large amounts of coolant loss, in my experience, is HBV (drivers side Bo Bo ;)).
Would this be more obvious with the engine running or not and/or heating on/off?
Sometimes they seem to leak when set to HI, others seem to fail when set to LO, so try both settings...
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Cav9_4

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Re: Using Coolant
« Reply #10 on: 24 June 2007, 23:35:43 »
Hi,my dad had a similar problem with his Omega v6,what i found was the pipe from the HBV to coolant bridge had perished and got a small hole in...also worth a look....HTH....regards...Wayne
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Re: Using Coolant
« Reply #11 on: 25 June 2007, 16:59:44 »
Well I drove to work this morning with no dramas. Driving back I pulled up at some traffic lights & there was what looked like faint smoke coming from the driver’s side of the bonnet at the top  :o
I thought maybe the cam cover was leaking again (but JamesV6CDX changed that a few weeks ago so I thought it can’t be) anyway I pulled over & popped the bonnet, there was no smell of oil so it must have been steam & there was coolant pishing from the HBV.
So I took a detour via Vx & picked up a "Starship Enterprise" & 5ltrs of coolant & the "nice parts man" gave me 2ltrs of water to get me home!  :-?

Now I've had a look & can see the little darling but I'm gonna struggle getting to it  ::)
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Re: Using Coolant
« Reply #12 on: 25 June 2007, 17:04:16 »
You need that famous Omega service tool.



A Tunnie.  ;D
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Andy B

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Re: Using Coolant
« Reply #13 on: 25 June 2007, 17:09:55 »
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.....

Now I've had a look & can see the little darling but I'm gonna struggle getting to it  ::)

Remove the wipers & plastic scuttle and you have more room to work in.
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Re: Using Coolant
« Reply #14 on: 25 June 2007, 17:13:28 »
I'd lend you the apprentice but he's off school with flu, he changed mine.
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