Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: greenman on 21 April 2012, 15:59:46

Title: thermostat?
Post by: greenman on 21 April 2012, 15:59:46
Temp. guage seems to take forever to reach the 2nd line.Themostat?Would this effect M.P.G.
Title: Re: thermostat?
Post by: dbug on 21 April 2012, 16:01:11
Probably thermostat mate and yep low engine temperature = lower mpg
Title: Re: thermostat?
Post by: greenman on 21 April 2012, 16:20:52
Apart from thermostat and gasket ring anything else needed?
Title: Re: thermostat?
Post by: RobG on 21 April 2012, 16:37:23
Apart from thermostat and gasket ring anything else needed?
Depends on engine
Title: Re: thermostat?
Post by: greenman on 21 April 2012, 18:01:16
It,s a 2.2
Title: Re: thermostat?
Post by: tunnie on 21 April 2012, 18:36:53
Petrol, diesel?
Title: Re: thermostat?
Post by: tigers_gonads on 21 April 2012, 19:06:28
Might be worth running some coolant flush threw it first  ;)
Title: Re: thermostat?
Post by: greenman on 21 April 2012, 19:09:14
,52  2.2 petrol
Title: Re: thermostat?
Post by: rsymes2k on 21 April 2012, 19:29:24
def thermostat, good luck it's a beatch!
Title: Re: thermostat?
Post by: greenman on 21 April 2012, 19:40:19
Any pics or a How To.Above doesn,t sound too good :-\
Title: Re: thermostat?
Post by: jonny2112 on 21 April 2012, 19:51:45
There's def a guide for V6, not sure about 2.2  :-\
Someone's bound to have done it though  :y
Title: Re: thermostat?
Post by: PhilRich on 21 April 2012, 19:51:53
Thermostat renewal/replacement on a 2.2 is a doddle :y
Title: Re: thermostat?
Post by: PhilRich on 21 April 2012, 20:25:30


2.2 Thermostat Assembly....Part No. :  90501081 This is the VX Part Number for the complete assembly. 92deg C. thermostat can be purchased seperately and fitted in the existing housing if money is an issue but tbh, you are better off buying the whole gubbins :y
The Torque values for the thermostat housing to engine block are: 15Nm/11lbf ft. Hth :y


(http://i863.photobucket.com/albums/ab197/philrich1064/22thermostathousing.jpg)


(http://i863.photobucket.com/albums/ab197/philrich1064/Omega_z22xeengine.jpg)
Title: Re: thermostat?
Post by: greenman on 21 April 2012, 20:42:24
Good man.Looks a lot easier than the v6
Title: Re: thermostat?
Post by: tunnie on 21 April 2012, 20:54:34
Good man.Looks a lot easier than the v6

Just slight understatement, its 15 minute job unlike the crappy V6's which take half a friggin day to do!  ;D
Title: Re: thermostat?
Post by: jonny2112 on 21 April 2012, 21:05:19
Good man.Looks a lot easier than the v6

Just slight understatement, its 15 minute job unlike the crappy V6's which take half a friggin day to do!  ;D

 ;D ;D
Title: Re: thermostat?
Post by: greenman on 23 April 2012, 10:10:14
Best antifeeze to use?
Any idea of mix when refilling?
Title: Re: thermostat?
Post by: tunnie on 23 April 2012, 10:18:35
GM own is well priced on TC, always 50/50 mix with water  :y
Title: Re: thermostat?
Post by: jonny2112 on 23 April 2012, 13:35:38
What about the stat itself? Buypartsby sufficient?
It seems to take a long time for the gauge to move on my (poxy) V6, so may need to go down this route myself.
Title: Re: thermostat?
Post by: PhilRich on 23 April 2012, 13:50:03
What about the stat itself? Buypartsby sufficient?
It seems to take a long time for the gauge to move on my (poxy) V6, so may need to go down this route myself.






I can only speak from my own experience on this question. I followed MarksDTM's advice that my problem was a faulty 'stat and he was correct :y, but I then compounded my problems by buying a cheap 'stat from a Factors and fitting it into the original housing only to have that part repeatedly stick open ....so back to square one! :-[  So in imo, only buy a genuine GM OE stat for your V6 as they are a bloody site more involved to change than a 4 pot & you only want to be doing that job once! ;D :y
Title: Re: thermostat?
Post by: jonny2112 on 23 April 2012, 18:09:35
Anyone got a Vx price for stat and housing?
Also BPB do a kit which includes the housing. Anyone any experience of these?
All hypothetical at this stage, but worth asking  :y
Title: Re: thermostat?
Post by: martin42 on 23 April 2012, 18:32:27
Approx £45 ish,when i priced it up,but i went for thermostat only from unipart which was £9
Title: Re: thermostat?
Post by: Figureman52 on 23 April 2012, 19:09:29
Followed this advice from Elite Pete last November.

"I've fitted quite a few of these in the past and never had a problem :y"

http://www.ebay.co.uk/itm/Vauxhall-OMEGA-VECTRA-etc-V6-THERMOSTAT-HOUSING-NEW-/370148171910?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item562e8ce086#ht_1417wt_948

Got one fitted it and so far all is good. It was the thinner housing so used a washer and couple of M8 nuts as spacers. :)
Title: Re: thermostat?
Post by: rsymes2k on 23 April 2012, 19:22:50
careful on the bolts as you remove as my friend sheared his so we had a blow torch on it with some mole grips for about 2hours trying to get the bolt out.

Looks the same as the 1.8zafira I did, 10min job
Title: Re: thermostat?
Post by: Figureman52 on 23 April 2012, 19:43:41
Followed this advice from Elite Pete last November.

"I've fitted quite a few of these in the past and never had a problem :y"

http://www.ebay.co.uk/itm/Vauxhall-OMEGA-VECTRA-etc-V6-THERMOSTAT-HOUSING-NEW-/370148171910?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item562e8ce086#ht_1417wt_948

Got one fitted it and so far all is good. It was the thinner housing so used a washer and couple of M8 nuts as spacers. :)

Just realised this started out as a 2.2 query.  :-[
Title: Re: thermostat?
Post by: jonny2112 on 23 April 2012, 20:02:58
Sorry, my fault  :-[
Title: Re: thermostat?
Post by: bigdumper3 on 08 May 2016, 13:26:55
iv a problem with fitting my new thermostat, i cant get it in the housing, its doing my fingers in ,somebody explain how you do it,,thank you boys