Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: tport on 05 March 2012, 20:55:30

Title: 3.2 water pump / thermostat
Post by: tport on 05 March 2012, 20:55:30
After just 14,000 miles my no-name water pump has started to make nasty graunching noises so will need replacing this weekend.  I believe the Vauxhall prices are now very expensive, even with trade club, can anyone recommend the best alternative?

The coolant gauge is also running very cool (less than 80 on a long run last night) & I suspect the thermostat is stuck open so will also attempt to change this at the same time.  Can anybody recommend the best place to buy a replacement and the transfer pipe which I also believe may also need replacement at the same time?

Title: Re: 3.2 water pump / thermostat
Post by: Andy B on 05 March 2012, 21:11:45
I'd suggest that the 'best' place is Vauxhall, that way you're only likely to be doing the job once. So far your 'cheap' water pump has cost you twice (plus fitting if you didn't fit it  ;))
Title: Re: 3.2 water pump / thermostat
Post by: symes on 05 March 2012, 21:13:43
sadly thats quite true mate mines cost a fortune But thats it done for years  :y
Title: Re: 3.2 water pump / thermostat
Post by: tport on 05 March 2012, 21:28:31
Does anybody know the latest TC prices for V6 water pumps, thermostats and housings?
Title: Re: 3.2 water pump / thermostat
Post by: Marks DTM Calib on 05 March 2012, 21:34:26
65.33 + vat which is a disgrace.

Hunt out a good skf, cintitech one or a brand from the factors.

As for stat, one of these is the same as a Vx one:

http://www.ebay.co.uk/itm/Vauxhall-SIGNUM-SINTRA-etc-V6-THERMOSTAT-HOUSING-NEW-/370313791387?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item56386c079b

Do get a new bridge pipe from Vx for around a tenner which comes with the required O rings for the above
Title: Re: 3.2 water pump / thermostat
Post by: JamesV6CDX on 05 March 2012, 21:41:28
The pumps from buypartsby are excellent, and seem to be built to GM quality, visually. £27.

Stat - as per MDTM's link.

If you break yours and get really stuck for a transfer pipe, I have one here..

You shouldn't break it though, as long as you're careful and wiggle it out ;)

Am not far away if you get stuck :y
Title: Re: 3.2 water pump / thermostat
Post by: amba on 06 March 2012, 08:48:00
Found the same part and seller as advised by Mark DTM,but couple of £,s cheaper and identical part.
 370148171910.

Unsure if any reason why  ?
Title: Re: 3.2 water pump / thermostat
Post by: tport on 07 March 2012, 18:43:23
I have been down to BPB in Nottingham and picked up a new water pump manufactured by .................... Comline!  Looking at previous posts I don't think that this is going to be much better than the one that is already fitted.  Looks like I am going to be going to the main dealer for the real thing - or is this just going to be another far eastern clone?
Title: Re: 3.2 water pump / thermostat
Post by: dbug on 07 March 2012, 20:24:00
Most motor factors sell QH ones - these appear to last ok :y
Title: Re: 3.2 water pump / thermostat
Post by: JamesV6CDX on 07 March 2012, 20:32:28
I have been down to BPB in Nottingham and picked up a new water pump manufactured by .................... Comline!  Looking at previous posts I don't think that this is going to be much better than the one that is already fitted.  Looks like I am going to be going to the main dealer for the real thing - or is this just going to be another far eastern clone?

Very odd, the ones I've had from BpB certainly haven't been comline that I remember.

I know Elite Pete has also had good results with BPB pumps, from memory... Pete? :) :y
Title: Re: 3.2 water pump / thermostat
Post by: tport on 18 March 2012, 17:37:47
Spent the afternoon getting the old themostat out and fitting the new one.  Not too many problems getting the old one separated from the transfer pipe however the new housing is far thinner and I needed new shorter bolts to secure it.  The fit into the transfer pipe also seemed very smooth so I am a bit worried this may leak.
Title: Re: 3.2 water pump / thermostat
Post by: martin42 on 18 March 2012, 17:42:09
i used the original housing and got replacement thermostat,havnt had any problems,and was cheaper that way  :y
Title: Re: 3.2 water pump / thermostat
Post by: tport on 18 March 2012, 19:08:43
I thought about using the original housing as it came away undamaged however the new themostat wouldn't attach.  The central shaft is sealed in the new thermostat with just a small locating pin to hold it in place where the old thermostat had the whole piston remain attached to the thermostat housing.