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1

Omega General Help / Re: need new front discs again

« on: 10 October 2010, 10:03:59 »

If they are warping due to heat then drilled discs will fail sooner, they crack around the drilled holes with heat.

As above, never had much of an issue with genuine GM discs.

2

Omega General Help / Re: Crankshaft cant rotate to Top Dead Center,MV6

« on: 10 October 2010, 10:11:09 »

Sounds like a heads back off situation and see what's up.

Measure the thickness of the head when it's off to see it it has been over skimmed.

3

Omega General Help / Re: Tramlining Omega

« on: 10 October 2010, 10:17:37 »

Have you had all the alignment checked, camber, toe, etc?

Are the wheel standard offset?

4

Omega General Help / Re: Hunting/rocker cover gasket

« on: 10 October 2010, 10:00:10 »

Do the metal vectra camcovers work on the omega?

5

Omega General Help / Re: thermostat housing

« on: 29 July 2010, 21:53:54 »

In the past few years I've done 6 (2 mine, 4 on friends), only 1 managed to survive. The cast alloy is too weak, and it binds to strongly onto the thermostat.

My first attempt  :


Split the thermostat housing and it was still stuck on. Ended up splitting the joint straight down. The rest turned out in a similar state, or worse.

6

Omega General Help / Re: thermostat housing

« on: 29 July 2010, 10:50:06 »

I've changed a few of these. Get a new pipe, they're not expensive, you'll end up destroying it when removong it.

7

Omega General Help / Re: Looking for exploded diagram rear axle/suspension

« on: 29 July 2010, 14:31:09 »

Er, doesn't work like that :-? Dropping 40mm will put probably an unwanted degree or so of camber on. That could be taken out by a trailing arm bush with only a few mm of eccentricity.

I thought that at first, but having fitted them to another car, there just wasn't the range.

The trailing arm is a fixed unit to the hub, for the camber to remain the same then the angle of the arm also must remain the same, and the pivot point will still be at the same height relative to the ground. Or is my logic wrong there?

8

Omega General Help / Re: Looking for exploded diagram rear axle/suspension

« on: 28 July 2010, 22:01:52 »

You do get eccentric bushes for the calibra too, however, if you drop the body by say 40mm, then youd need 40mm at the pivot point to maintain the camber. That's bigger than the bush.

How does the hub part pivot?

9

Omega General Help / Re: Looking for exploded diagram rear axle/suspension

« on: 27 July 2010, 11:06:41 »

That's not so good, carlton gsi's aren't so easy to find.

Mine are both 5 stud cars.

On the omega B, there's the big adjusting bar, you're saying that will change the toe in as well as camber. Is there a pivot point on the hub itself?

Might be easier just getting a hold of one to see, I've only had a brief look under a car to see it. Difficult to see where all the bits were connected.

10

Omega General Help / Re: Looking for exploded diagram rear axle/suspension

« on: 27 July 2010, 09:22:27 »

steering rack position - that's what's going to kill the idea 

That's another on-going project  angle-grinder at the ready

I noticed the trailing arms look almost identical to the calibra, but you have camber adjustment. And the camber is a killer on lowered calibras.

11

Omega General Help / Re: Looking for exploded diagram rear axle/suspension

« on: 27 July 2010, 09:05:11 »

What are you looking to do?

Just some mad idea right now... 

12

Omega General Help / Looking for exploded diagram rear axle/suspension

« on: 26 July 2010, 22:27:28 »

As title, where can I find an exploded diagram of the rear end suspension?

Is it the same for all models? or is there some difference between early/late or 4cyl/v6?

13

Omega Gallery / Re: OMEGA ESTATE C20LET RUNNING 280BHP!!!!!!!!!!!!!!

« on: 26 July 2010, 22:01:06 »

How have achieved 280 horsepowers against stock 204?

Easily, off the shelf chips from EDS (phase kits) or Vmax (evo kits) will get you to 300bhp. Beyond 300 needs some more expensive parts.

700+ bhp is achievable 

14

Omega Gallery / Re: Lozzys Omega- The Sentinal Sound System Build

« on: 10 October 2010, 10:22:00 »

Wow, that's impressive!

15

Omega Gallery / Re: NATMAN7 my 3.0 mv6

« on: 10 October 2010, 12:50:45 »

Very clean car