Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: amba on 13 April 2008, 13:07:01

Title: Cam shaft upgrades for 2.5
Post by: amba on 13 April 2008, 13:07:01

Is it necessary to replace the cam shaft clamps from those matching the new shafts, when upgrading the camshafts on a 2.5 with those from a 3.0 ,or is it ok to use the existing ?Is there any other parts that should be exchanged other than all the obvious gaskets/seals with new.

Title: Re: Cam shaft upgrades for 2.5
Post by: TheBoy on 13 April 2008, 13:08:03

Quote

Is it necessary to replace the cam shaft clamps from those matching the new shafts, when upgrading the camshafts on a 2.5 with those from a 3.0 ,or is it ok to use the existing ?Is there any other parts that should be exchanged other than all the obvious gaskets/seals with new.

Dont quote me, but I thought the camshaft shells should remain original from that head due to way they are manufactured

Title: Re: Cam shaft upgrades for 2.5
Post by: cem_devecioglu on 13 April 2008, 13:09:30

Yep..same question here .. As I plan to do the same change..

Are other parts necessary ?

Title: Re: Cam shaft upgrades for 2.5
Post by: Marks DTM Calib on 13 April 2008, 13:09:40

You only swap the cams.....the shells are line bore to the head and cant be replaced so must remain with the head they are manufactured with.

When taking the cams out I always flush the followers out.....

Title: Re: Cam shaft upgrades for 2.5
Post by: amba on 13 April 2008, 13:10:36

Thought I had read that before,but just wanted to clariffy as planning change over next week(weather permitting)

Title: Re: Cam shaft upgrades for 2.5
Post by: cem_devecioglu on 13 April 2008, 13:13:01

Thanks for the replies :y

Title: Re: Cam shaft upgrades for 2.5
Post by: amba on 13 April 2008, 13:13:23

Seems odd when you see them come up on Fleabay they nearly always show pictures of clamps/shells,so really just waste of postage weight then .

Title: Re: Cam shaft upgrades for 2.5
Post by: ffcgary1 on 13 April 2008, 13:30:21

I did contact a seller with regards to this thread, and had a snotty reply back telling me that i knew nothing about the build process and he had sold many sets of cams with the cam caps, and anyway was not bothered about any problems the buyer may have after fitting them. :o

Thats one seller i will steer well clear of.

Title: Re: Cam shaft upgrades for 2.5
Post by: Kevin Wood on 13 April 2008, 13:43:47

Nasty things happen when you mix cam caps from different heads, as a mate of mine found out (camshaft ended up in 3 pieces while he was torquing up the caps). :o

Make sure they are refitted the same way round and in the same locations too (have a look where the markings are before you disassemble).

Kevin

Title: Re: Cam shaft upgrades for 2.5
Post by: amba on 13 April 2008, 14:26:16

Thanks for advise ,guys.I will only change the camshafts and ditch the caps/shells supplied.Just as a incidental,is it only worth exchanging the "G",s or as I have the 4 from the 3.0lt should they just be all swopped ?

Title: Re: Cam shaft upgrades for 2.5
Post by: cem_devecioglu on 13 April 2008, 14:50:41

as far as I know all 4 must be changed..

Title: Re: Cam shaft upgrades for 2.5
Post by: MutantCav on 13 April 2008, 15:09:27

Cant see why you would need to change the A's...doesnt seem to make sense at all...I would just do the G's...

By the way anyone need a pair of G cams I have some, one a fully working and nicely running 98 3.0 v6 which I'm about to strip...£100 plus postage or can be collected...