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1

Omega Electrical and Audio Help / blanked switches

« on: 16 October 2007, 11:40:08 »

Hey guys a quick question,

I was fitting a new stereo and i removed all of the dials and switches of the front console, Now i noticed that where there were blank plastic inserts instead of actuall switches along where you turn your hazards , aitcon , inside alarm deactcvate, rear dimester, now next to them on either sides are blanks covering where you would put a switch in but there are contacts behind them with wires that go some where does anyone know (im sure lots will know) what are the extra buttons that go here what do they do? I rmoved my demister button and put in place of the blanks the light comes on to show the switch is working but I dont actually know if it does anything? can anyone help.

2

Omega General Help / how to replace piston?

« on: 26 January 2008, 14:56:29 »

Hi firstly how do i upload pics so i can show u guys what i am goin on about on secondly i need to replace a psiton its the middle piston on the right hand bank when standing in front of the engine, i kind of have an idea but not 100%
Drain oil
remove baffle plate
undo bearing cap
push piston out.
i think anyway has anyone done this and can give me some pointers and anything o watch out for.
ps i want to do this with the engine in the car still.

if you see my previous post you will know why i am doing this.

3

Omega General Help / Re: really horrible noise

« on: 25 January 2008, 16:57:27 »

Its my baby I have to fix it lol !

4

Omega General Help / Re: really horrible noise

« on: 25 January 2008, 16:51:15 »

Every other piston and valve is fine, had the valves out now 1 is bent the othr is fine the are both inlet and both the bottoms of the guides have come off , now my theoy is this engina had a cambelt go onit at some point and some has replaced it and change the head gasket and what not as it all looks clean I suspect they just changed the bent valves and not the guides. now the valve guide has after a few thousand miles has acutually broken from the damage caused in the past.

well theroy anyway as belt and tesioners are fine.

Head is now in machine shop getting the old valves out and new ones in also having the others checekd and replacing anything that needs to be. so monday get my head back now i have to find the time to fit it.!

Hw do i add images?

5

Omega General Help / Re: really horrible noise

« on: 25 January 2008, 14:50:11 »

FOUND THE EFFFIN CULPRIT
on th middle cylinder on the righ bank on the two inlet valve the ends of the valve guides have snapped off also only one valve has bent my piston has some squished metal marks NO SCORING WAHOOO
and so does the head have some squish marks.

Now heres the question how do i get the two valve guides out? and the two new ones in.?

Many Thanks Don

6

Omega General Help / Re: really horrible noise

« on: 24 January 2008, 19:04:43 »

im just trying to figure out why and what caused the problem seeing as my timing was correctly setup what would have suddenly caused the engine to break at tick over, and the engine still runs just now with a knocking noise,
The valve lenght is 92mm according to haynes and the bore stroke is only 86 mm so the valve will never actually fall into the piston chamber but it is continually ontop off the piston being pushed up and down through each and obviously when the engine is running the piston is hitting the valve up quicker than it can fall down, i think that why the noise can be heard wth the ebgine running but when you just turn the engine over with no spark plugs in it doesnt knock because the engine is still spinning slow enough for the valve to just rest on it during the stroke.

7

Omega General Help / Re: really horrible noise

« on: 24 January 2008, 17:06:28 »

ill b damned im sure ive just found half a collet in the plenum!

looks like s valve has come lose.

does anyone know where i can get a single collet?

many thanks don

8

Omega General Help / Re: really horrible noise

« on: 24 January 2008, 16:29:13 »

Right quite deserate now.

Have retimed the engine bought the laser kit which worked very well for me all the parts fitted and lined up well, put everything back and started it, now the noise was quiter but the tapping was still quite appernt and when you revved slightly just got worse and louder,

took everyhing back off again, started to take the cam covers off the right hand side when in front of the car took the sparkys out and took the fuse out for fuel pum as the plenum and intake manifold was now removed, and turned the engine over now as the engine is urning over i cant hear the noise and all the cams where moving easily and oil was comin out so i now thought ok put the spark plugs back in to put the compression back and turned the engine over again but still i couldnt hear the knocking or tapping, so im really not sure what to look for next, so shoul i remove this head and see if there is anything there or do you think i am wasting my time i would have thought if it was a bent valve i would hear the knocking even whille turning the engine over.
 i dont know some one please help me im gonna cry soon

9

Omega General Help / Re: really horrible noise

« on: 23 January 2008, 15:01:08 »

Ok had a quick look got the cover off and looking at it it looks like the right hand bank is out by Cam 3 out by 1 to 2 teeth cam 4 out by 2/3teeth,

I cant re time it yet as I dont have a locking kit,

Spoke to my local SC motor factors they have one for £65+vat has anyone ever seen these kits and no wether they are any good or not.

ManyThanks Don

10

Omega General Help / Re: really horrible noise

« on: 22 January 2008, 16:58:18 »

Also anyone near my area that has the locking kit avalible for loan I am willing to leave a deposit.

Don

11

Omega General Help / Re: really horrible noise

« on: 22 January 2008, 16:52:24 »

where can I get the v6 cambelt dovdeee from.

don

12

Omega General Help / Re: really horrible noise

« on: 22 January 2008, 16:08:54 »

car will start first time but very rough no warning lights on dash bu still knocking noise used a screewdriver to see where noise is comin from and is definatly on the right hand side near the front at the top need to take my air filter system out to check the timing. i will keep you all updated

Don

13

Omega General Help / Re: really horrible noise

« on: 22 January 2008, 15:47:34 »

thats what i was thinking as the car still runs thanks i shall checek the timing and let u no

14

Omega General Help / really horrible noise

« on: 22 January 2008, 15:38:30 »

Hi guys quick bit of advice befor i start stripping.

I was sitting at th lights waiting to turn right then all of a sudden car startst  making real horrible chugging noise and a rather large knocking noise and the engine doesnt want to stay running then died, started again and pullled up ontothe side of the road,

When i start the engine it starts fine but very rough and the knocking is straight away and very load coming from the right hand side of the engine when in fornt of it, when you rev it just gets louder and so does he knock,

Have heard this sound before when I changed the cambelt on a vectra 1.8 and didnt have it timed properly and when started made the same sort of noise.

Now guys what should I do, do you think maybe my cambelt slipped on one side and that is the problem or do you think something has physically broken inside the engine and I should remove the heads.

any help would be much apprieciated.
also I will need a cam locking kit any ideas where to buy a decent one.

Many Thanks

Don

15

Omega General Help / Re: NEED A SPLIT COLLET

« on: 24 January 2008, 19:05:18 »

im just trying to figure out why and what caused the problem seeing as my timing was correctly setup what would have suddenly caused the engine to break at tick over, and the engine still runs just now with a knocking noise,
The valve lenght is 92mm according to haynes and the bore stroke is only 86 mm so the valve will never actually fall into the piston chamber but it is continually ontop off the piston being pushed up and down through each and obviously when the engine is running the piston is hitting the valve up quicker than it can fall down, i think that why the noise can be heard wth the ebgine running but when you just turn the engine over with no spark plugs in it doesnt knock because the engine is still spinning slow enough for the valve to just rest on it during the stroke.