Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please check the Forum Guidelines at the top of the Newbie section

Pages: [1] 2  All   Go Down

Author Topic: Steam from under bonnet and coolant loss...  (Read 2959 times)

0 Members and 1 Guest are viewing this topic.

f3nt0n

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Hampton, Middlesex
  • Posts: 49
    • 3.0i Elite 2000W Auto
    • View Profile
Steam from under bonnet and coolant loss...
« on: 23 September 2012, 15:16:47 »

Gah. Been losing coolant at an increased rate in the last few days - now steam is evident rising from the bonnet.

Popped the bonnet and the steam is coming from behind the plenum at the back, to the left side (as you are standing in front of the car)  :-[

here's a pic (though you cant see the steam but it is drifting out)

http://www.fent.pwp.blueyonder.co.uk/steam.jpg
(The arrow points to area behind the plenum the steam is coming from...)

Any ideas?

Thanks in advance, guys...
Logged

YZ250

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Oxford/Bucks border
  • Posts: 4636
    • Black 3.2 Elite Estate
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #1 on: 23 September 2012, 15:23:24 »

Heater bypass valve is directly below that so definitely first place to check.  :y
Logged
My fun car is a 2020 Bmw F32 430d M Sport with indicators.
My cruiser is an Audi A6 Avant S Line Black Edition with indicators.

dbug

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Northants
  • Posts: 14279
  • Dont knock Linux!
    • Jaguar XJ 5.0V8 Portfolio
    • View Profile
    • Dbug IT Services
Re: Steam from under bonnet and coolant loss...
« Reply #2 on: 23 September 2012, 15:38:49 »

Would also go with HBV leaking, although could be pinholed pipe from coolant bridge.
Logged
1972 Ferrari Dino, 1967 Triumph TR4A, Mondeo 2.0TDCi Estate, Jaguar XJ 5.0V8 Portfolio

OmegaGav

  • Intermediate Member
  • ***
  • Offline Offline
  • Gender: Male
  • Hemel Hempstead
  • Posts: 334
  • For god sake doooo something !!!!!
    • 08' Vectra 3.0 V6 Cdti
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #3 on: 23 September 2012, 16:26:05 »

Any water dripping/pouring down below ?
Logged


Yes it's my M&S goulash cannon. Ready Aim Fire...!!!

OmegaGav

  • Intermediate Member
  • ***
  • Offline Offline
  • Gender: Male
  • Hemel Hempstead
  • Posts: 334
  • For god sake doooo something !!!!!
    • 08' Vectra 3.0 V6 Cdti
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #4 on: 23 September 2012, 16:48:30 »

P.s Things seem to be not in the right place.......i.e that screw hole on the plenum should have a bracket for 2 coolant hoses on it .....With the hoses in it  :o
Logged


Yes it's my M&S goulash cannon. Ready Aim Fire...!!!

The Red Baron

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • burton on trent.staffs
  • Posts: 6178
  • 3.0mv6 sal/3.0elite lpg/2.2dti estate
    • 2000 chipped mv6 3.0l
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #5 on: 23 September 2012, 16:57:58 »

i would go for hbv, 1st post of call. check associated hoses aswell.  :y
Logged

vauxhall & halfords trade cards.v6 cam locking kit.<local only.

amba

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Medway towns
  • Posts: 4827
    • German V6
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #6 on: 23 September 2012, 17:18:20 »

All main heater and coolant pipework run behind the plenum.

Agree with first check being the HBV  :y then all pipework and spring clips.
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107026
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #7 on: 23 September 2012, 17:53:35 »

As others have said, given the location, check HBV, but could also be a split hose
Logged
Grumpy old man

f3nt0n

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Hampton, Middlesex
  • Posts: 49
    • 3.0i Elite 2000W Auto
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #8 on: 23 September 2012, 22:44:28 »

Thanks guys, I'll start taking it apart tomorrow.... :y
Logged

omega3000

  • Guest
Re: Steam from under bonnet and coolant loss...
« Reply #9 on: 24 September 2012, 09:40:52 »

Nip out for a steady supply of plasters before you start  ;)
Logged

f3nt0n

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Hampton, Middlesex
  • Posts: 49
    • 3.0i Elite 2000W Auto
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #10 on: 24 September 2012, 18:20:45 »

I just ran the car stationary for about 15 mins, got it up to temp, fans came on - nowt. No water loss (that was visible anyway).

Got in the car, turned on the heating (it was off).

Voila! -steady stream of water poured from the general area of the HBV.

It has to be that...right?  :y

Cheers.
Logged

YZ250

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Oxford/Bucks border
  • Posts: 4636
    • Black 3.2 Elite Estate
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #11 on: 24 September 2012, 18:53:38 »

I just ran the car stationary for about 15 mins, got it up to temp, fans came on - nowt. No water loss (that was visible anyway).

Got in the car, turned on the heating (it was off).

Voila! -steady stream of water poured from the general area of the HBV.

It has to be that...right:y

Cheers.

Yep, classic symptom of HBV.  :y
Logged
My fun car is a 2020 Bmw F32 430d M Sport with indicators.
My cruiser is an Audi A6 Avant S Line Black Edition with indicators.

f3nt0n

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Hampton, Middlesex
  • Posts: 49
    • 3.0i Elite 2000W Auto
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #12 on: 28 September 2012, 18:52:09 »

HBV replaced with new VX unit and running lovely. However, while I was digging around at the back, I found the tube (shown in the pic) not connected to anything at one end. It originates lower down at the back of the engine. Anyone got any ideas?
http://www.fent.pwp.blueyonder.co.uk/a.jpg
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39777
    • ML350 TDM SmartRoadster
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #13 on: 28 September 2012, 18:53:56 »

HBV replaced with new VX unit and running lovely. However, while I was digging around at the back, I found the tube (shown in the pic) not connected to anything at one end. It originates lower down at the back of the engine. Anyone got any ideas?
http://www.fent.pwp.blueyonder.co.uk/a.jpg

Gearbox breather by the looks of it.  ;)
Logged

YZ250

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Oxford/Bucks border
  • Posts: 4636
    • Black 3.2 Elite Estate
    • View Profile
Re: Steam from under bonnet and coolant loss...
« Reply #14 on: 28 September 2012, 18:57:38 »

HBV replaced with new VX unit and running lovely. However, while I was digging around at the back, I found the tube (shown in the pic) not connected to anything at one end. It originates lower down at the back of the engine. Anyone got any ideas?
http://www.fent.pwp.blueyonder.co.uk/a.jpg

Gearbox breather by the looks of it.  ;)

Agree with above.  :y
It's not meant to be attached to anything, just needs to be higher than the gearbox.  :y
Logged
My fun car is a 2020 Bmw F32 430d M Sport with indicators.
My cruiser is an Audi A6 Avant S Line Black Edition with indicators.
Pages: [1] 2  All   Go Up
 

Page created in 0.016 seconds with 17 queries.