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: Omega coolant loss  (Read 3083 times)

0 Members and 2 Guests are viewing this topic.

davemish

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • East Anglia
  • Posts: 6
    • View Profile
Omega coolant loss
« on: 21 September 2008, 17:36:49 »
My Omega, like some others, has a coolant leak which was diagnosed as a head gasket leak and which was changed at great expense by the local Vauxhall agent. I am still getting coolant loss which is not consistant and does not seem to be external. Someone in the forum suggested that someone elses problem could be a HBV. Can someone tell me what HBV is?  :-?
Logged

dbug

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Northants
  • Posts: 14279
  • Dont knock Linux!
    • Jaguar XJ 5.0V8 Portfolio
    • View Profile
    • Dbug IT Services
Re: Omega coolant loss
« Reply #1 on: 21 September 2008, 17:47:28 »
Welcome to OOF  :y

You should post this - I was going to say in General Help & b*gger me its moved - fast work Hotel21

HBV = Heater Bypass Valve - it lives behind engine plenum at back.
« Last Edit: 21 September 2008, 17:50:40 by dbug »
Logged
1972 Ferrari Dino, 1967 Triumph TR4A, Mondeo 2.0TDCi Estate, Jaguar XJ 5.0V8 Portfolio

hotel21

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • The Kingdom of Fife
  • Posts: 13021
    • View Profile
Re: Omega coolant loss
« Reply #2 on: 21 September 2008, 17:48:07 »
Moving to gen help....

HBV is the abbreviation for the Heater Bypass Valve, which is the usual suspect for unexplained coolant loss which gives a drip/leak on the rear of the engine, drivers side of the gearbox.  There is a pic somewheres of where its located and a thread on how to change it.  Will add this shortly, when I find it!!  

welcome to the forum, by the way....   :y
« Last Edit: 21 September 2008, 17:50:29 by hotel21 »
Logged

Darth Loo-knee

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Death Star
  • Posts: 18826
  • Jammie smells of Pooh....
    • TIE Fighter
    • View Profile
Re: Omega coolant loss
« Reply #3 on: 21 September 2008, 17:58:12 »
here is a link to a picture of a HBV  :y
http://www.omegaowners.com/forum/YaBB.pl?num=1192574064
Logged
Everything to do with Omega's. Breaking, Servicing from Cambelts to Oil Changes... Please Pm me for details...

davemish

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • East Anglia
  • Posts: 6
    • View Profile
Re: Omega coolant loss
« Reply #4 on: 21 September 2008, 19:21:35 »
Thanks for info!

However the engine is inline not V6 so does that place the HBV somewhere else?
Logged

RobG

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Bristol
  • Posts: 13831
  • I might have a link, pic or part number for that
    • 16 plate Mokka. Vivaro
    • View Profile
Re: Omega coolant loss
« Reply #5 on: 21 September 2008, 19:42:14 »
No :) :)
Logged
All that is necessary for the triumph of evil is that good men do nothing.

UPVC windows/doors/fascias/soffit/gutters supplied/fitted

davemish

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • East Anglia
  • Posts: 6
    • View Profile
Re: Omega coolant loss
« Reply #6 on: 22 September 2008, 16:27:16 »
Update on Coolant loss.

The local vauxhall garage has replaced the HBV and it seems to have cured the problem, time will tell Thanks all for your interest
I hope I'll be able to report 100% success later :y
Logged

ians

  • Omega Baron
  • *****
  • Offline Offline
  • Reading
  • Posts: 3394
    • View Profile
Re: Omega coolant loss
« Reply #7 on: 22 September 2008, 16:47:26 »
Quote
Update on Coolant loss.

The local vauxhall garage has replaced the HBV and it seems to have cured the problem, time will tell Thanks all for your interest
I hope I'll be able to report 100% success later :y

was that the same one that replaced your head gaskets at great expense when all that was needed was a new HBV? ::)
Logged

Black cxd v6

  • Newbie
  • *
  • Offline Offline
  • Germany
  • Posts: 35
    • View Profile
Re: Omega coolant loss
« Reply #8 on: 22 September 2008, 17:06:22 »
How much did there charge you? I am needing the same job doing on mine.
« Last Edit: 22 September 2008, 17:06:59 by biggsa »
Logged

davemish

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • East Anglia
  • Posts: 6
    • View Profile
Re: Omega coolant loss
« Reply #9 on: 22 September 2008, 17:32:54 »
£1226 - good luck!! >:( :'(
Logged

johnnycboy

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • Colchester
  • Posts: 1259
    • View Profile
Re: Omega coolant loss
« Reply #10 on: 22 September 2008, 17:38:44 »
Quote
£1226 - good luck!! >:( :'(

Robbing barstewards >:(. makes you blood boil, hope you got some money back on the not needed HG. :question

hopefully all is well now :y
Logged

big-o-bob

  • Junior Member
  • **
  • Offline Offline
  • Gender: Male
  • Yorkshire
  • Posts: 118
    • View Profile
Re: Omega coolant loss
« Reply #11 on: 23 September 2008, 21:23:42 »
I changed what I think is the same valve myself.  I don't know much about machanics, but some how managed it myself, with the aid of a haynes manual and torque wrench.

If we are talking about the same valve, it was a plastic valve located at the back of the engine (V6), a sod to get to and I had to remove a fair bit off the top of the engine.  Even then it was tight.

Being on the heater circuit, mine was only losing coolant whilst the heater fan was switched on, which would explain the coolant loss being inconsistant in your case.

Seems a bit expensive to me, as I would have thought a competent mechanic would have had it finished before dinner time.  
Logged

Lizzie_Zoom

  • Guest
Re: Omega coolant loss
« Reply #12 on: 23 September 2008, 21:29:27 »
Quote
I changed what I think is the same valve myself.  I don't know much about machanics, but some how managed it myself, with the aid of a haynes manual and torque wrench.

If we are talking about the same valve, it was a plastic valve located at the back of the engine (V6), a sod to get to and I had to remove a fair bit off the top of the engine.  Even then it was tight.

Being on the heater circuit, mine was only losing coolant whilst the heater fan was switched on, which would explain the coolant loss being inconsistant in your case.

Seems a bit expensive to me, as I would have thought a competent mechanic would have had it finished before dinner time.  

That is indeed the HBV, it is a sod to work on. ::) ::) ::)

However, for next time, you do not have to remove anything from the top of the actual engine; you just remove the wipers and the plastic tray running beneath them to gain (still very difficult) access to the HBV. :y :y
Logged

HerefordElite

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • Hereford
  • Posts: 1724
  • Welcome to the Shire
    • View Profile
Re: Omega coolant loss
« Reply #13 on: 24 September 2008, 00:01:41 »
Quote
£1226 - good luck!! >:( :'(


ouch  :o

if the dealer diagnosed coolant loss as HG then i'd be kicking their arse for a hefty compensation claim

thieving barstewards  >:(
Logged
Nova SR, MKII Cav Sri130, MKII Astra GTE16v, Omega 3.0V6 Elite, Silver Cross Sleepover Classic

Entwood

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • North Wiltshire
  • Posts: 19566
  • My Old 3.2 V6 Elite (LPG)
    • Audi A6 Allroad 3.0 DTI
    • View Profile
Re: Omega coolant loss
« Reply #14 on: 24 September 2008, 00:04:38 »
Quote
£1226 - good luck!! >:( :'(

That must be the rip-off of the century !!  They are charging for their own incorrect diagnosis ??   I'd be phoning Trading Standards and the Citizens Advice people very soon .. :(
Logged
Pages: [1] 2  All   Go Up
« previous next »
 

Page created in 0.014 seconds with 17 queries.