Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Shackeng on 21 November 2011, 15:47:05

Title: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 15:47:05
As the TD temp sensors are suspect, I'm using the 3.2 Elite this week, and...b****r...the temp doesn't go above 80'. I guess its the 'stat?
Title: Re: And another thing....3.2 Temp.
Post by: aaronjb on 21 November 2011, 16:17:58
On a motorway run in winter mine doesn't go much about 80 either.. 85 around town, just over 90ish in traffic and then the fans cut in.

I thought it was the stat, then convinced myself (well, KevinW did, in replies to my posts) that it was all fine really.. now I'm not so sure again  ;D
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 16:25:14
I thought the perceived wisdom on here was that it should sit midway? ??? ??? ???
Title: Re: And another thing....3.2 Temp.
Post by: Kevin Wood on 21 November 2011, 16:39:47
They do appear to have a failure mode that causes them to run a little cool. Mine did the same, yet would still warm up reasonably quickly.

In the end I decided to change the thermostat as it was all coming apart anyway. With the new thermostat it warms up quickly to 85 indicated and stays between there and just over 90 under all conditions.
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 16:43:17
Having just read the maintenance guide, I'm not looking forward to changing it! :( :( :(
Title: Re: And another thing....3.2 Temp.
Post by: aaronjb on 21 November 2011, 16:43:48
Damn, maybe I do need to do mine, then..

Ditto Shackeng - not a job I'm looking forward to!
Title: Re: And another thing....3.2 Temp.
Post by: albitz on 21 November 2011, 16:45:28
Mine also seems to sit at around 80 most of the time,which I think is a little cool.I think I will live with it until next summer and then probably change the stat when I reinstall the front end of the LPG.
Title: Re: And another thing....3.2 Temp.
Post by: tunnie on 21 November 2011, 16:47:24
Yup, sounds like a stat issue. Mines at 85 within just a few mins  :)
Title: Re: And another thing....3.2 Temp.
Post by: Kevin Wood on 21 November 2011, 16:48:33
It wasn't as bad a job as I'd imagined it might be. The trick is to loosen the seal between the transfer pipe and thermostat housing before undoing the bastard bolt (which also wan't too bad).

Doing it with a cam belt change is a good plan, because you get much better access to the thermostat housing once the tensioner backplate is out of the way, and it's much easier to clean up the mating face of the engine block.
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 17:01:54
Point taken Kevin, I would like to do my cam-belt anyway, but it will have to wait a while as I have a kitchen to fit. :y
Title: Re: And another thing....3.2 Temp.
Post by: TheBoy on 21 November 2011, 17:08:26
Indeed, fairly common with the DBW 3.2.  Not sure why that stat should be more prone than 2.5/3.0, seeing as same part...

...maybe its because the DBW ones are all coming to 8/9yrs old, so tired stats, and all the 2.5/3.0 have already been changed a few years back?
Title: Re: And another thing....3.2 Temp.
Post by: kcl on 21 November 2011, 18:31:19
Indeed, fairly common with the DBW 3.2.  Not sure why that stat should be more prone than 2.5/3.0, seeing as same part...

...maybe its because the DBW ones are all coming to 8/9yrs old, so tired stats, and all the 2.5/3.0 have already been changed a few years back?

Late engines have different stat, at least the housing is different, hence the seal also which is a "real" seal instead of "normal" with the o-ring type seal. Newer housing is alot "sturdier", more robust design, don't know why they changed it because the "older" type is interchangeable and quite reliable...
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 18:33:15
Is it advised to replace the housing on the 3.2 with a stat change? I know some cars require it due corrosion etc.
Title: Re: And another thing....3.2 Temp.
Post by: kcl on 21 November 2011, 18:39:06
Is it advised to replace the housing on the 3.2 with a stat change? I know some cars require it due corrosion etc.

Most commonly available as a "kit", e.g. housing WITH stat, IIRC welded together. Only separate parts are stat seal/oring, transfer pipe and its two o-rings.
Title: Re: And another thing....3.2 Temp.
Post by: TheBoy on 21 November 2011, 18:41:35
Is it advised to replace the housing on the 3.2 with a stat change? I know some cars require it due corrosion etc.
Genuine stat only available with housing :y
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 21 November 2011, 19:01:38
 :y :y :y
Title: Re: And another thing....3.2 Temp.
Post by: fiend61 on 21 November 2011, 19:18:42
just thinking out loud------but isnt there 2 types of stat a standard one and a run cool version  :-\
Title: Re: And another thing....3.2 Temp.
Post by: Kevin Wood on 21 November 2011, 20:26:26
Is it advised to replace the housing on the 3.2 with a stat change? I know some cars require it due corrosion etc.
Genuine stat only available with housing :y

Yep, and in my case the earlier housing was supplied which required the mounting bolts to be shortened. It is possible to remove the stat from the housing so I'm guessing it could have been swapped into the old housing.

The seal you need depends on the housing too, as said.

Best to tell AndyC what you're doing and get him to send you a kit of bits to cover all eventualities.

I reckon mine was knackered when I bought the car @ 40k/4 years old. It's certainly never run much above 80-85 all the time I've had it.
Title: Re: And another thing....3.2 Temp.
Post by: feeutfo on 22 November 2011, 09:22:47
Just to mention, the bastward bolt is a torx, with no way of getting a halfords set ratchet on it, which is the only torx most of us have.
 Ideally you want the correct size torx spanner, because there have been instances where the torx bolt has been stubborn and rounded off when resorting to a hex spanner, which sort of fits and does the job in most instances but "may" slip.

If the torx bolt rounds off with a hex, a torx spanner won't fit too well, and given poor access as the bolt is concealed by the transfer pipe removing a rounded bolt is...a challenge, shall we say!

To be belt and braces it may be worth acquiring the correct size torx spanner first? Or at the very least crack that bolt loose first, then you know you can at least finish the job, provided the transfer pipe comes off of course. :)
Title: Re: And another thing....3.2 Temp.
Post by: aaronjb on 22 November 2011, 10:21:55
I don't know if any of these are the right size, but, I bought a set of these from Halfords: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_177477_langId_-1_categoryId_165572
Title: Re: And another thing....3.2 Temp.
Post by: Kevin Wood on 22 November 2011, 11:52:42
I don't know if any of these are the right size, but, I bought a set of these from Halfords: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_177477_langId_-1_categoryId_165572

Yep, that'll do it. E10 or E12 would be my guess.

I'm trying to recall how I got mine off. I think I got a socket on it, TBH.
Title: Re: And another thing....3.2 Temp.
Post by: TheBoy on 22 November 2011, 18:23:39
I don't know if any of these are the right size, but, I bought a set of these from Halfords: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_177477_langId_-1_categoryId_165572

Yep, that'll do it. E10 or E12 would be my guess.

I'm trying to recall how I got mine off. I think I got a socket on it, TBH.
On non DBW engines, you can push the PAS pipe down out of the way to get socket on.  Not sure on DBW V6...
Title: Re: And another thing....3.2 Temp.
Post by: Shackeng on 30 November 2011, 17:41:01
Just back from Dubai, thanks for all the advice chaps. :y :y :y
Title: Re: And another thing....3.2 Temp.
Post by: Ken T on 30 November 2011, 19:23:16
I don't know if any of these are the right size, but, I bought a set of these from Halfords: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_177477_langId_-1_categoryId_165572

Yep, that'll do it. E10 or E12 would be my guess.

I'm trying to recall how I got mine off. I think I got a socket on it, TBH.
On non DBW engines, you can push the PAS pipe down out of the way to get socket on.  Not sure on DBW V6...

Yes you can push the PAS pipe out the way, it jambs forward nicely.



Remember to release it if you want power assistance to your steering  ;D

Ken