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Author Topic: Small Coolant Leak  (Read 4718 times)

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Tonka.

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Small Coolant Leak
« on: 17 May 2012, 20:41:54 »
Car has been loosing half a litre of coolant a fortnight for a while now. Parked up with a hot engine (85deg) and after about an hour a merry puddle had formed on the concrete beneath. Sweet smell, definitely  coolant!

Stuck my hand on the HBV and it is dry. No leaks there. A drip is coming from the rear of the engine.

I have heard mention of a "Coolant Bridge Pipe". Could this be the culprit?

If so, is it straight forward to replace and would I need any extra parts?

Is it on TC?

Thanks Guys  :y :y
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Tonka.

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Re: Small Coolant Leak
« Reply #1 on: 17 May 2012, 20:42:15 »
Excuse the double post  ::) ::)
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tunnie

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Re: Small Coolant Leak
« Reply #2 on: 17 May 2012, 20:44:42 »
Worth checking the pipes to/from the coolant bridge, pop the plenum off & the inlet manifold. Easier to check the pipe work  :y
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Tonka.

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Re: Small Coolant Leak
« Reply #3 on: 17 May 2012, 20:47:57 »
Job for tomorrow Mr T. Thanks mate  :y
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LFF64

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Re: Small Coolant Leak
« Reply #4 on: 17 May 2012, 21:02:36 »
I had a leaky HBV that was only loosing a small amount over a couple of weeks so it could still be that , it even looked ok when it was removed
 After replacing with a new one I havent had any more coolant loss  :y
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Andy B

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Re: Small Coolant Leak
« Reply #5 on: 17 May 2012, 21:24:21 »
Quote from: Tonka. on 17 May 2012, 20:41:54
....
Stuck my hand on the HBV and it is dry. No leaks there. A drip is coming from the rear of the engine.

......

Have you checked the HBV for being dry at various heat settings or air/con on or off, it can make a difference as to if it's leaking.
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Tonka.

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Re: Small Coolant Leak
« Reply #6 on: 17 May 2012, 21:50:30 »
Quote from: Andy B on 17 May 2012, 21:24:21
Quote from: Tonka. on 17 May 2012, 20:41:54
....
Stuck my hand on the HBV and it is dry. No leaks there. A drip is coming from the rear of the engine.

......

Have you checked the HBV for being dry at various heat settings or air/con on or off, it can make a difference as to if it's leaking.


No I haven't, but I will. Thanks  :y


Tonight the temp setting was at 25deg with the air/con off. Does this make a difference?
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Andy B

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Re: Small Coolant Leak
« Reply #7 on: 17 May 2012, 21:59:47 »
Quote from: Tonka. on 17 May 2012, 21:50:30
....
Tonight the temp setting was at 25deg with the air/con off. Does this make a difference?inside the

The vacuum operates a diaphragm which moves the valve up & down inside the HBV, it's the diaphragm that perishes and causes the leak. There's no set temp at which te valve might leak.  ;) ;)
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Tonka.

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Re: Small Coolant Leak
« Reply #8 on: 17 May 2012, 22:02:26 »
I see. Thanks Andy  :y
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I_want_an_Omega

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Re: Small Coolant Leak
« Reply #9 on: 17 May 2012, 22:08:35 »
As it 'appens I have a used spare that you are welcome to borrow and see if it makes a difference ...........

PM me if interested - cheers - Rob
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Tonka.

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Re: Small Coolant Leak
« Reply #10 on: 17 May 2012, 23:08:27 »
Quote from: Lincs Robert on 17 May 2012, 22:08:35
As it 'appens I have a used spare that you are welcome to borrow and see if it makes a difference ...........

PM me if interested - cheers - Rob


Incoming PM Rob  :y
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Tonka.

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Re: Small Coolant Leak
« Reply #11 on: 18 May 2012, 10:43:31 »
Investigation over....

Its not the HBV or the bridge. Its the oil cooler seal

Bugger it !!  :(
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JamesV6CDX

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Re: Small Coolant Leak
« Reply #12 on: 18 May 2012, 11:55:55 »
Quote from: Tonka. on 18 May 2012, 10:43:31
Investigation over....

Its not the HBV or the bridge. Its the oil cooler seal

Bugger it !!  :(

Good guide in maintenance section :y
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Andy B

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Re: Small Coolant Leak
« Reply #13 on: 18 May 2012, 12:00:25 »
Quote from: JamesV6CDX on 18 May 2012, 11:55:55
Quote from: Tonka. on 18 May 2012, 10:43:31
Investigation over....

Its not the HBV or the bridge. Its the oil cooler seal

Bugger it !!  :(

Good guide in maintenance section :y

http://www.omegaowners.com/forum/index.php?topic=90596.0

It's OK I suppose!  ::) ::) ::)  ;) :y  Could've done with a bit more detail.  ;D ;D
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Tonka.

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Re: Small Coolant Leak
« Reply #14 on: 18 May 2012, 14:33:47 »
Just got the plate back in. Now for the oil cooler pipes  :y

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