Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: grifter on 26 May 2021, 07:14:36

Title: Aux belt tensioner seems loose
Post by: grifter on 26 May 2021, 07:14:36
Hi

Just recently done timing belt and new aux belt, done the re-grease of the aux belt tensioner as per video, seemed ok. Now I had a look at the other day and the little wheel seems a bit slack, and also can see a shadow of lube on one edge of it. I also noticed there is a section on the side of the new aux belt that looks like it has rubbed off a bit. might be a coincidence.

Is it maybe the little dust covers came off and grease escaped?

Thanks

G

Title: Re: Aux belt tensioner seems loose
Post by: BazaJT on 26 May 2021, 08:45:51
If unsure of it in any way at all I'd replace at least tensioner pulley[I believe they're still available separately for not much money]or if investigation shows it necessary then the whole unit,although as I understand it it's usually the pulley that lets go.
Title: Re: Aux belt tensioner seems loose
Post by: biggriffin on 26 May 2021, 09:51:58
https://www.ebay.co.uk/itm/143376270534?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item2161e444c6:g:DekAAOSwwG1dc5MD
Title: Re: Aux belt tensioner seems loose
Post by: grifter on 26 May 2021, 09:56:26
Had a look at it again this morning, didn't seem that bad as i thought yesterday, but for all it is I'll just replace it.

Cheers all
Title: Re: Aux belt tensioner seems loose
Post by: grifter on 26 May 2021, 10:01:15
https://www.ebay.co.uk/itm/143376270534?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item2161e444c6:g:DekAAOSwwG1dc5MD

Just checked that doesn't appear to be compatible with v6? Can you confirm?
Title: Re: Aux belt tensioner seems loose
Post by: Enceladus on 26 May 2021, 11:52:54
https://www.ebay.co.uk/itm/143376270534?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item2161e444c6:g:DekAAOSwwG1dc5MD

Just checked that doesn't appear to be compatible with v6? Can you confirm?
It's for a diesel which looks to be a larger diameter.
You want GM# 9157962 which is the idler roller on it's own.
Or GM# 9202550 is the tensioner assembly with roller and supersedes GM# 90528760. Either should fit.


Title: Re: Aux belt tensioner seems loose
Post by: STEMO on 26 May 2021, 11:56:37
https://www.ebay.co.uk/itm/143376270534?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item2161e444c6:g:DekAAOSwwG1dc5MD

Just checked that doesn't appear to be compatible with v6? Can you confirm?
It's for a diesel which looks to be a larger diameter.
You want GM# 9157962 which is the idler roller on it's own.
Your helpful contributions on the forum have not gone unnoticed, by me anyway. Thank you.
Title: Re: Aux belt tensioner seems loose
Post by: Enceladus on 26 May 2021, 16:40:37
Genuine GM# 9157962 available here (https://www.ebay.co.uk/itm/114154704506?hash=item1a94268e7a:g:CncAAOSwwz9edLVp) from a Vaux dealer @£20.77 delivered.
Title: Re: Aux belt tensioner seems loose
Post by: deviator on 26 May 2021, 21:29:35
It might be worth checking you've got the right length belt, if you think it's too slack. The belt part number normally tells you the length and number of ribs.
Title: Re: Aux belt tensioner seems loose
Post by: grifter on 27 May 2021, 07:45:51
It might be worth checking you've got the right length belt, if you think it's too slack. The belt part number normally tells you the length and number of ribs.

It's the same belt as the old one, the belt is tight, it was the roller I thought was a bit loose.
Title: Re: Aux belt tensioner seems loose
Post by: YZ250 on 27 May 2021, 09:30:10
https://www.ebay.co.uk/itm/143376270534?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item2161e444c6:g:DekAAOSwwG1dc5MD

Just checked that doesn't appear to be compatible with v6? Can you confirm?
It's for a diesel which looks to be a larger diameter.
You want GM# 9157962 which is the idler roller on it's own.
Your helpful contributions on the forum have not gone unnoticed, by me anyway. Thank you.

Agreed.  :y  Helpful contributions and an encyclopaedia on GM part numbers. Takes the time to research part numbers to make it easier for other members. Very helpful.  :y
Title: Re: Aux belt tensioner seems loose
Post by: biggriffin on 27 May 2021, 20:24:39
Iirc it's a 6pk2100 belt.
Title: Re: Aux belt tensioner seems loose
Post by: grifter on 28 May 2021, 08:16:33
Thanks all for part numbers and advice. Got one winging it's way to me.
Title: Re: Aux belt tensioner seems loose
Post by: Enceladus on 28 May 2021, 12:59:17
Iirc it's a 6pk2100 belt.
Would be a tad loose.
V6 with aircon compressor = 6PK2020
V6 without aircon or compressor omitted = 6PK1900
The best ones are Contitech. Some makes, eg Gates, specify belts that are slightly shorter and are therefore harder to fit.
Title: Re: Aux belt tensioner seems loose
Post by: biggriffin on 28 May 2021, 20:13:29
Iirc it's a 6pk2100 belt.
Would be a tad loose.
V6 with aircon compressor = 6PK2020
V6 without aircon or compressor omitted = 6PK1900
The best ones are Contitech. Some makes, eg Gates, specify belts that are slightly shorter and are therefore harder to fit.

 Thank you, I wasn't 100% sure