Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Rog the Dodge on 04 February 2010, 12:41:25
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Just had my system pressure tested as i was losing a bit of coolant somewhere, good news is that the head is fine, but found i am losing pressure elsewhere, found out it was comimg from the HBV ,very tiny leak,but enough to make me have to top up coolant every 100 miles!!!!.
Looks like a sod to get on it to change it, any help would be appreciated.
Also has anyone got one that they would like to pass on for a few golden nuggets!!! :) :y
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A common problem, and fiddly but not hard to do.
They break often, so I would source new to be honest.
There is a lot of slack in the coolant pipes, Ive found you can unhook the HBV and move it sideways enough to get molegrips etc on to remove the clips, then just swap and replace.
some remove the scuttle for a tiny bit more access.
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ok, thanks for that, i have taken a look, looks bloomin tight, i cant get me hands in there,also if and when i manage to get the pipes of,will i lose much coolant?
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lose a bit, not a lot.
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I successfully replaced my HBV in about 3 hours afer removing the scuttle and skinning a few knuckles and generating a few bob for the swear box ! :-)
But as a novice mechanic and tackling my first job on the Omega, I was dead chuffed I managed to swop it over ok. Definitely more room to work with when scuttle is removed. Good luck. Also I paid stealers £36 for new genuine VX HBV unit.
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Just been on the blower to my local vx, they have quoted me £34.55 plus vat???.
Not sure i want to take a chance on a aftermarket one, i see you can get one for around £19 delivered, but you pay your money you take your chance, dont want to lose more skin by doing it again quite so soon lol :-/
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Shame you're so far away Rog, I'd have done it for you. I'm getting a dab hand at them now and I can do it without taking the skuttle off :P
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I have been far away for years ,lol.
Can i ask if you have any skin on the backs of your hands left???
Mine are raw already and i havent got the thing out yet! ;D
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Yea not even a scratch, but I've got skinny arms :P
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so to recap then, you can get the clips off and the valve out without removing anything?
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so to recap then, you can get the clips off and the valve out without removing anything?
Yes,
although the 1st few I did I removed bit for better access.
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Scuttle off makes all the difference and probably adds no more than 10 minutes to the job . (But if you do it following the 'How To' guide here, and then lay it upside down out of the way, remember that the little half-turn plastic clips are not captivated! They fall out unless you take them out first!) I also whipped off the vac pipe between the plenum and the servo - again, a few seconds extra work that makes all the difference to how much knuckle and forearm skin you donate!
While I had mine off I replaced those nasty hose clips with proper Jubilee clips. Makes re-assembly SO much easier! And a bit of universal lubricant (spit!) helps the hoses slide on nicely.
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Shame you're so far away Rog, I'd have done it for you. I'm getting a dab hand at them now and I can do it without taking the skuttle off :P
You must have tiny hands or an extra joint between elbow and wrist!
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YOUR NOT KIDDING
even the dog went in to hiding when i done mine.
from the swearing and tool throwing
think i had two kuckels that still had skin on em after i was done
the other 8 were screwed
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Scuttle off makes all the difference and probably adds no more than 10 minutes to the job . (But if you do it following the 'How To' guide here, and then lay it upside down out of the way, remember that the little half-turn plastic clips are not captivated! They fall out unless you take them out first!) I also whipped off the vac pipe between the plenum and the servo - again, a few seconds extra work that makes all the difference to how much knuckle and forearm skin you donate!
While I had mine off I replaced those nasty hose clips with proper Jubilee clips. Makes re-assembly SO much easier! And a bit of universal lubricant (spit!) helps the hoses slide on nicely.
I was always taught NOT to use jubilee clips on water hoses. They do not expand as the water heats up and dig into hoses causing splits and leaks. They can also cause damage to the "pipe" the hose is on .. especially the plastic ones on a radiator.
That is why fancy spring clips are used .. to allow for expansion .... if jubilee clips were the answer .. don't you think the makers would fit them ??? :)
HTH
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correct but trouble is vx stick there ones on befor they put the engine in
and them are all way garanted to turned around with the bit you need the grips in with 3mm gap between it and that bulkhead
hence the juberly clips for next time you change
id rather risk buying a new hose that the riped up hands next time i need to change the HBV
lol
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Scuttle off makes all the difference and probably adds no more than 10 minutes to the job . (But if you do it following the 'How To' guide here, and then lay it upside down out of the way, remember that the little half-turn plastic clips are not captivated! They fall out unless you take them out first!) I also whipped off the vac pipe between the plenum and the servo - again, a few seconds extra work that makes all the difference to how much knuckle and forearm skin you donate!
While I had mine off I replaced those nasty hose clips with proper Jubilee clips. Makes re-assembly SO much easier! And a bit of universal lubricant (spit!) helps the hoses slide on nicely.
I was always taught NOT to use jubilee clips on water hoses. They do not expand as the water heats up and dig into hoses causing splits and leaks. They can also cause damage to the "pipe" the hose is on .. especially the plastic ones on a radiator.
That is why fancy spring clips are used .. to allow for expansion .... if jubilee clips were the answer .. don't you think the makers would fit them ??? :)
HTH
If VX change a HBV they use jubilee clips :-?
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Jubilee clipped mine also. :y
No way do I want to ever go through the pain and suffering as I did that day changing that poxy thing. >:(
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I did mine on a caravan site in Kent in about an hour. I wouldn't think about doing the job without taking the scuttle off, as said, it only adds 10 mins to the job - Torx screw at the driver's side, 2 wiper arms & a handfull of 1/4 turn fasteners :y :y :y
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Easy enough job... I can't really get my shovels in there without removing the scuttle but, as everyone else has stated, it's only another 10 minutes or so (assuming you can get the wipers off without cracking the screen :-[ :-[ ::))
And as for the spring clips... What's the problem... I bet it's as easy to get some mole grips in as it is to get a screwdriver in :-? :-? :-?
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to get a screwdriver in :-? :-? :-?
Heathen!!! :-?
I always use a 6 or 7 mm 1/4" drive socket on Jubilee type clips ;) ;) ;) :y
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to get a screwdriver in :-? :-? :-?
Heathen!!! :-?
I always use a 6 or 7 mm 1/4" drive socket on Jubilee type clips ;) ;) ;) :y
True... Most decent clips are the correct size for a ratchet driver without any bits in :y :y :y
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Easy enough job... I can't really get my shovels in there without removing the scuttle but, as everyone else has stated, it's only another 10 minutes or so (assuming you can get the wipers off without cracking the screen :-[ :-[ ::))
And as for the spring clips... What's the problem... I bet it's as easy to get some mole grips in as it is to get a screwdriver in :-? :-? :-?
no sping clips are positioned so the the bits that stick out you put the molegrips are against the back of engie bay
with hardly enougth roop to get a fag paper in let alone the molegrips
lol
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Scuttle off makes all the difference and probably adds no more than 10 minutes to the job . (But if you do it following the 'How To' guide here, and then lay it upside down out of the way, remember that the little half-turn plastic clips are not captivated! They fall out unless you take them out first!) I also whipped off the vac pipe between the plenum and the servo - again, a few seconds extra work that makes all the difference to how much knuckle and forearm skin you donate!
While I had mine off I replaced those nasty hose clips with proper Jubilee clips. Makes re-assembly SO much easier! And a bit of universal lubricant (spit!) helps the hoses slide on nicely.
I was always taught NOT to use jubilee clips on water hoses. They do not expand as the water heats up and dig into hoses causing splits and leaks. They can also cause damage to the "pipe" the hose is on .. especially the plastic ones on a radiator.
That is why fancy spring clips are used .. to allow for expansion .... if jubilee clips were the answer .. don't you think the makers would fit them ??? :)
HTH
If VX change a HBV they use jubilee clips :-?
Like all manufacturers Vx fit spring clips 'coz they're both quicker to fit on the production line, and they require no skill to fit properly (they can't be over- or under tightened). If a Jubilee clip is cutting into the hose or damaging the spigot it's either the wrong size, or too tight, or both.