Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Cav9_4 on 19 May 2008, 19:32:12

Title: 2.5 V6 Cylinder Head Query
Post by: Cav9_4 on 19 May 2008, 19:32:12

Hi,need to remove and replace the drivers side head as it's damaged,question is are all heads the same (mines a 1997) and when i replace the head will i have to use the cams and bearings from the replacement head too,...many thanks..Wayne

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Martin_1962 on 19 May 2008, 20:05:47

Bearing are matched with heads, do not mix as they are line bored

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Cav9_4 on 19 May 2008, 21:19:36

Thanks for reply,so i can still use original cams then?...Wayne

Title: Re: 2.5 V6 Cylinder Head Query
Post by: markey mark on 19 May 2008, 21:24:41

cams will be fine wayne bud !! :y

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Cav9_4 on 19 May 2008, 21:34:05

Thanks Mark!, don't suppose you have a driver's side head for sale!...going to ring local scrappy tomorrow,it's for my Dads Omega and he's supposed to be off on his holidays friday,are all 2.5 V6 heads the same?

Title: Re: 2.5 V6 Cylinder Head Query
Post by: markey mark on 19 May 2008, 21:35:50

Quote

Thanks Mark!, don't suppose you have a driver's side head for sale!...going to ring local scrappy tomorrow,it's for my Dads Omega and he's supposed to be off on his holidays friday,are all 2.5 V6 heads the same?

near enough wayne yes mate !! i may have a spare head fella will let you know tommorrow afternoon  :y

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Cav9_4 on 19 May 2008, 21:44:20

Thanks Mark.... :y

Title: Re: 2.5 V6 Cylinder Head Query
Post by: JamesV6CDX on 20 May 2008, 00:06:01

I have a pair of 3.0 heads here but the squish are is different - compression lower, on a 2.5.

use the cam shells to match the head, or the engine won't last long!

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Kevin Wood on 20 May 2008, 10:09:11

The cams can be interchanged but make sure you keep the cam bearing caps with the head, as already mentioned. It is critical that these are not only kept with the head but also refitted in the same location and the same orientation as they were originally.

Kevin

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Cav9_4 on 20 May 2008, 10:20:15

Thanks for reply Kevin,going to have a go hopefully today/tomorrow if i can get cam locking tool and all parts required,not looking forward to it as iv'e not done any work on the Vauxhall v6 heads before,trying to get it up and running again so my Dad can get on his holidays this weekend....Wayne

Title: Re: 2.5 V6 Cylinder Head Query
Post by: Kevin Wood on 20 May 2008, 13:49:01

Just be methodical, take plenty of photos so you know where everything was. The cam bearing caps are numbered from front to back on one side of the cap, so just remember where the markings were and you can't go wrong. I normally try to store them on a tray in the same sequence that they were on the engine so it's easy.

Kevin