Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: vauxsull on 22 July 2013, 15:30:12

Title: HBV
Post by: vauxsull on 22 July 2013, 15:30:12
Before the HBV finally gives up and dies are they prone to giving out hot air one side and cold the other from the vents ?..... Believe its gone now as steam wafting up from that area but had heat issues last few weeks
Title: Re: HBV
Post by: 05omegav6 on 22 July 2013, 16:08:03
Suspect a different problem unless it's losing coolant :-\

HBV failure is highlighted by coolant loss which increases/decreases depending on the climate settings :y
Title: Re: HBV
Post by: vauxsull on 22 July 2013, 16:15:27
Only started to lose water today and steam everywhere but as i said permanent  heat on drivers side despite set to ' low'..... Hoping may have been linked somehow..
Title: Re: HBV
Post by: 05omegav6 on 22 July 2013, 16:22:29
Had four HBVs fail on me, and not one of them resulted in steam :-\

Split hose perhaps :-\

The temperature controls are vaccum motors in the front foot wells, above the front end of the centre console. It is not unknown for the arms to become disconnected.
Title: Re: HBV
Post by: vauxsull on 22 July 2013, 16:25:41
is it an easy fix? will my cuppa tea go cold doing that job?
Title: Re: HBV
Post by: 05omegav6 on 22 July 2013, 16:31:24
Does the passenger side switch between hot and cold as expected?
Title: Re: HBV
Post by: vauxsull on 22 July 2013, 16:59:15
yes it does
Title: Re: HBV
Post by: 05omegav6 on 22 July 2013, 18:32:09
Ok, remove the trim from under the glove box, and carefully reach over the front edge of the centre console, the servo is there. Ignition on, fan on its slowest setting and turn the passenger temp from Lo to Hi and back again. You should be able to see/hear/feel the servo moving the arm :-\

Do the same thing the other side, the servo should still move, but if the arm is detached, that won't move :y
Title: Re: HBV
Post by: Entwood on 22 July 2013, 18:49:23
As Al says ^^^  or seats full back, get upside down in the seat, head in the footwells .....  you can just about see the actuators and the arms ... get someone to sit in the other seat and make the selections for you !!
Title: Re: HBV
Post by: vauxsull on 22 July 2013, 19:00:48
ok guys i shall give that a go tomorrow.... i have just changed the HBV and im covered in scratches and sweating like gary glitter in a nursery....
Title: Re: HBV
Post by: TheBoy on 22 July 2013, 19:39:06
Had four HBVs fail on me, and not one of them resulted in steam :-\
Clearly not trying hard enough, go stand in the corner
Title: Re: HBV
Post by: Andy B on 22 July 2013, 19:40:06
Had four HBVs fail on me, and  ...

I've only replaced  mine twice in over 10 yrs  ???  ;)  ;)  ;)
Title: Re: HBV
Post by: vauxsull on 22 July 2013, 19:53:42
I shall never attempt to do this again..... almost burst into tears on occasions
Title: Re: HBV
Post by: 05omegav6 on 22 July 2013, 20:08:01
Had four HBVs fail on me, and not one of them resulted in steam :-\
Clearly not trying hard enough, go stand in the corner

Sorry Dad. Yes Dad :-[

 ;D
Title: Re: HBV
Post by: Andy B on 22 July 2013, 20:17:08
I shall never attempt to do this again..... almost burst into tears on occasions

Ya soft bugger!   ;D ;D
Title: Re: HBV
Post by: TheBoy on 22 July 2013, 21:39:50
I shall never attempt to do this again..... almost burst into tears on occasions
But you suceeded? Well done :y
Title: Re: HBV
Post by: vauxsull on 23 July 2013, 20:00:11
bugger 'dangle berries'.... wasnt the HBV after all... something else leaking behind there... :-\
Title: Re: HBV
Post by: TheBoy on 24 July 2013, 18:53:46
Cooler plate, coolant bridge and the curly rubber pipe are next favourites.

Remove plenum, and join the throttle body hoses. Remove coolant cap, and blow hard into it (sealing if poss) while somebody looks for leak.
Title: Re: HBV
Post by: vauxsull on 24 July 2013, 19:09:14
Gone from bad to worse... ran car to temp and no leaks visable so assume hose clips hadnt sealed properly so happy days......... I thought.... Then noticed water dripping and spraying ( due to aux belt flicking it) from bottom of engine and traced it to behind lower half of timing belt cover.... thinking water pump losing will to live..... Jimbob recons there's a pipe behind there that could be culprit...... Timing belt needs changing though  need it done this weekend if anyone available? Dont mind travelling within reason.... Think Elite pete now lives in Tibet as he dont seem to be on here anymore...
Title: Re: HBV
Post by: 05omegav6 on 24 July 2013, 19:41:17
Worth popping the plenum off as it could be running forward and down behind the cambelt cover :-\

The only water item behind the cover is the waterpump...
Title: Re: HBV
Post by: vauxsull on 24 July 2013, 19:55:44
hmmmmm i'll look now
Title: Re: HBV
Post by: albitz on 24 July 2013, 20:03:26
Worth popping the plenum off as it could be running forward and down behind the cambelt cover :-\

The only water item behind the cover is the waterpump...

Agreed.Mine was leaking as described and it turned out to be running down from the front of the cooler plate. :y
Title: Re: HBV
Post by: vauxsull on 24 July 2013, 21:39:16
took plenium off and all dry with no sign of leaks... all back together now but have air leak somewhere and too dark to see whick air pipe i aint put back.... all fingers point to water pump i think?