Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: coldanconversions on 21 May 2008, 14:09:31

Title: How do I tell?
Post by: coldanconversions on 21 May 2008, 14:09:31
Hello all, new boy here!  :)

... and straight away I'm on the take from you all.  I'm hopefully picking up a '99 MV6 this weekend, but before I part with my hard earned, is there an easy way to tell that it's an X30XE engine fitted and not just an X25XE.

Is there somewhere on the block that says it in plain english, or do I have to cross reference it's engine number (underneath, to the rear right of the engine if I remember rightly!).

The log book has it as a 3.0l, but I just wanna make sure.

Cheers,

Col.
Title: Re: How do I tell?
Post by: FRE07962128 on 21 May 2008, 14:19:02
Hello and a warm welcome to you! :y

Apart from the log book that should indicate the cc's, the stamping on the engine, another way to tell is 3 ltrs have a twin piped exhaust back box.

I am sure our engine experts on this site will also give you further more technical pointers of the differences between the two engines :y

All the best.
Title: Re: How do I tell?
Post by: Darth Loo-knee on 21 May 2008, 14:21:49
Quote
Hello all, new boy here!  :)

... and straight away I'm on the take from you all.  I'm hopefully picking up a '99 MV6 this weekend, but before I part with my hard earned, is there an easy way to tell that it's an X30XE engine fitted and not just an X25XE.

Is there somewhere on the block that says it in plain english, or do I have to cross reference it's engine number (underneath, to the rear right of the engine if I remember rightly!).

The log book has it as a 3.0l, but I just wanna make sure.

Cheers,

Col.

If its a 1999 3.0 it will have a longer Plenum on :y
2.5's plenums finish about level with the Cambelt Cover, 3.0's hang around 3 inches over :y
Title: Re: How do I tell?
Post by: Elite Pete on 21 May 2008, 14:24:55
All 99 MV6 are 3.0 unless you suspect its had and engine transplant.
Title: Re: How do I tell?
Post by: bob.dent on 21 May 2008, 14:51:49
Hi Col and welcome to OOF. :) The engine cubic capacity will be stated in the V5C Registration Certificate. :y
Title: Re: How do I tell?
Post by: psnimv6 on 21 May 2008, 15:12:10
if you look where the engine number is as you said under the engine beside oil filter it will say x30xe or x25xe right beside engine number  :y
Title: Re: How do I tell?
Post by: tmx on 21 May 2008, 16:38:37
3.0 has longer plenums as stated but also the gearbox number is R28 but there is a way to tell the Engine type from the MID setup there is a guide on the forum asto what the MID config equates to if you hold the two buttons on the end of the wiper stalk this will display the ecu config
Title: Re: How do I tell?
Post by: Jay w on 21 May 2008, 16:49:29
the only true way to establish what you have fitted currently is to find the engine number......

Technically it would be possible to fit a 2.5 where a 3.0 has been, however if you do not believe the engine has been changed then i would go with the log book or some of the other identifiers that have been mentioned


Title: Re: How do I tell?
Post by: coldanconversions on 21 May 2008, 18:13:28
Cheers everyone...

I've done an RAC check on it and I've got the engine number, so I'll check it against it when I go this weekend.

Everything seems to tie up, but it's an ex cop car, with suspected head gasket failure (header tank looks clean, so I don't think it'll turn out to be the oil cooler), has steel wheels and trims on at the minute, no badges on it for clues, and the interior looks a pretty low key affair.

It is a manual though  :)

From what's been said already though, the plenum looks to be that of a 3.0l... here's a picture of it;

(http://img.photobucket.com/albums/v15/thejudderman/3174_1.jpg)



Title: Re: How do I tell?
Post by: MutantCav on 21 May 2008, 18:17:20
Yeah mate thats the extended plenum only found on later model 3.0's...seems a fair bet...the low key interior will be because its ex cop...and as said all MV6's are 3.0 by default unless the engine has been swapped since...
Title: Re: How do I tell?
Post by: coldanconversions on 21 May 2008, 18:27:29
Marvelous!

I thought most of it would be down to the 'ex cop' thing, but you never know if somebody's badged it up as an MV6 or what...

...Either that, or I'm just too cynical!  ;D
Title: Re: How do I tell?
Post by: markey mark on 21 May 2008, 19:01:08
it wont have any mv6 badges fella just 3.0 v6 on boot lid !! from the piccy its deffo 3.0 matey !! :y