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1

Omega General Help / Re: Suspect it's the head gasket, but .......

« on: 27 July 2010, 18:09:48 »

Im suspecting my head gaskets have gone also. I stripped the inlet right down to the coolant bridge as i have water around the back of both heads and was told maybe its leaking from there, but its dry as a bone, looks like its coming straight from the heads. Im slowly loosing coolant but i dont get any of the other side effect of mayo etc...

2

Omega General Help / Re: Replacing o/s exhaust manifold gasket

« on: 27 July 2010, 18:17:37 »

Forgive me, but why do you need parts for the coolant bridge when doing exhaust manifold gaskets?

3

Omega General Help / Re: exhaust manifold gasket replacement

« on: 27 July 2010, 12:27:08 »

I'm thinking about having ago at this on my Astra (one at front one behind) other than the gaskets what's best to buy just incase? Never had a problem on the old 1.6 engines, straight off straight on job!

4

Omega General Help / Re: (V6 Idle) When engine cold...

« on: 24 July 2010, 11:41:28 »

Not sure on the X30XE. Normally about 12-14kg/h on the 3.2 when idling hot. Not sure if it's displayed as kg/h or just a voltage though?

Is live data showing coolant temperature correctly?

Does it show the fuel trim / block learn values? If so are these straying far from their nominal value (128)?

Kevin

It has a reading for both kg and volt. From memory this morning it was 19kg/h i think, cts is working correctly.

One thing i did notice was the dsesired idle air was way high, in the 50's kg/h! Cant remember what the block learn value was of the actual MAF, that is what you were asking right as i see block learn for O2 sensors & idle, didnt catch one for maf mind.

And you are correct as to the fact it idles ok soon as the O2 sensors go to closed loop.

5

Omega General Help / Re: (V6 Idle) When engine cold...

« on: 23 July 2010, 21:33:37 »

Its the early X30XE. No faults using "My Naff Code Reader" coming from the MAF, what kind of figure should i see from the reading from it?

Coolant temp sensor is new also.

6

Omega General Help / Re: (V6 Idle) When engine cold...

« on: 23 July 2010, 17:58:31 »

Ahhhh thanks kevin! So i need to be looking weither its not putting more fuel in when cold! Does pop violently down the exhaust when cold which usually means leaning out right?

7

Omega General Help / (V6 Idle) When engine cold...

« on: 23 July 2010, 17:23:42 »

..what should it be trying to do differently than when warm as to idle?

Dont want to go into problems (again) as i want to go to war tomorrow with it and see what i can see. Just wonder what is involved with idle at cold thats different to when warm.

8

Omega General Help / Re: Can you still buy plenium top (black plastic)

« on: 24 July 2010, 11:34:45 »

is it just me or is the complete inlet on backwards?

Sideways actually!  The engine's in an Astra 

You can still get that part from vxm but you'll be better off finding s good second hand one, trade price is £54.00 + VAT ....

 

Its sideways and then the inlet is also backwards!

Dont think it would be wise to drill out the plastic, why what are you thinking?

How much do you want for it mate? Only difference i see with the thing is on most its got a cover and the screw is undernearth, mine is all just one piece

9

Omega General Help / Re: Can you still buy plenium top (black plastic)

« on: 23 July 2010, 21:25:05 »

I've got one - but the 4 pipes look longer than in your picture

No thats right, on mine there were chopped thats what i want to get around eventually making custom breather pipes

10

Omega General Help / Can you still buy plenium top (black plastic)

« on: 23 July 2010, 18:59:02 »

Not a good picture but i need a short, early black plastic plenium top like this:



as i want to try to get the breather pipes set back up, any ideas where you can get them?

11

Omega General Help / Re: Crank Sensor??

« on: 23 July 2010, 17:12:32 »

Is there anypoint to giving the cable any extra protection from heat sources? If so what should i use? With the engine being in the astra the crank sensor is close to the rad, nothing majour but my engine eats crank sensors for fun anything is worth a try!

12

Omega General Help / Re: 3.0l v6 idle speed

« on: 25 June 2010, 07:46:55 »

There is an adjustment to the idle just under the throttle bodies.

I have the same kind of problem when I have it on full lock it can die. I was reading somewhere about the ability to idle low for USA regs etc... and that the big nasty flywheel plays a part in this (think it was Courtney where I saw this) I have a f20 gearbox on with a lighter flywheel so im thinking it would be best my idle being adjusted up a touch?

13

Omega General Help / Re: Wont idle when warm

« on: 25 June 2010, 12:44:49 »

Or in this case, the TB's not closing fully

Hehe! The tb's are fully closed just resting on the screw and not the cast. As to changing the icv I have tried a different one but then it doesn't idle when cold! It's only just started doing this, straight after a service!

14

Omega General Help / Re: Wont idle when warm

« on: 25 June 2010, 07:40:35 »

Wouldn't this happen when cold also if it was one of those?

15

Omega General Help / Wont idle when warm

« on: 24 June 2010, 21:55:13 »

For some reason the car has become a pain... even after i service it tut! Car idles fine when started from cold but if i fire her up when warm it wont idle for 2-3mins then will be ok but at random can have a nasty hesitation. No fault codes had it plugged into "My Naff Code Reader"m and i cannot see anything thats off (then again i plugged it in when i got home not when the problems are actually happening). What could be causing this?