Omega Owners Forum
Chat Area => General Car Chat => Topic started by: Ken T on 27 May 2010, 21:46:13
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I recently changed my head gasket, and ended up working at around midnight to finish it, so maybe wasn't paying enough attention. The result, the car started but died straight away. Further attempts to start produced that "no compression" sound. And the damage :
(http://i159.photobucket.com/albums/t155/lapbits/PICT3333.jpg)
(http://i159.photobucket.com/albums/t155/lapbits/PICT3334.jpg)
And this is what caused it. Somehow this got stuck to the camshaft sprocket, and caused the belt to jump 3 or 4 teeth.
(http://i159.photobucket.com/albums/t155/lapbits/PICT3336.jpg)
This is going to cost a lot, A/ to get new valves fitted and B/ time off work. As I haven't transport I cant buy stuff.
Interesting enough it looks as if the exhaust valves which are further back in the head are undamaged, just the inlet ones.
Ken
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:-/ what is it? :-/
(http://i159.photobucket.com/albums/t155/lapbits/PICT3336.jpg)
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i share your pain mate, my belt let go today. :'(
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I don't know, the big piece is about 10*8*3mm, of a black plastic, the type used in car electrical fittings, but none appear to be missing or broken. I can't work out how something fell down there, it would have to have been up at the front of the engine to drop down there. The central mount on my cambelt cover has broken, but that plastic is too thin.
Ken
Ken
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i share your pain mate, my belt let go today. :'(
Sorry to hear that. Its not terminal. Its a pain to get the head off, but it can be done, plus there is a guy on fleabay selling a 2.2 head for £150 or offers, offer him £100, then you only need to get gaskets and bolts.
The worst thing for me is the loss of earnings. All in this will cost about £450 in total :'( :'( :'(
Ken
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I know that sinking feeling, when after fitting new heads, and new belt, it let go after 2-3 miles destroying a weekends work :'(
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A very big ouch!! :'( :'( :'( :'(
Feel very sorry for you :( :(
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Very bad luck indeed Ken :( :( Hope you can get it sorted out in the most inexpensive way possible :y :y
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Valves are often on ebay quite cheaply, same size for all ecotec engines.
If you recon your head, check the nose of the valve guides very carefully, the guides can be cracked by the bent valve stem. If the broken bit drops out later it does lots of damage. Your valves dont look too badly bent so you might be OK.
Shine a bright light on the exhaust valve heads and look for signs of light in the ports.....a valve head bent by a few thou is not obvious to see but will cause poor running.
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Thanks for all your comments and help. I dropped the head off at a Wigan engine place, they have just called to say the guides need replacing as well, so hopefully that will be it, good as new. I had thought about doing it myself, but time is the enemy here. If I can just source new head bolts and gasket, I can get it fixed over the weekend. I will of course double check nothing near the cambelt !.
Ken
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I dropped the head off at a Wigan engine place, ......
That's a long way to go :-?. Isn't there anywhere local? :-/
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What state are the pistons in?
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I dropped the head off at a Wigan engine place, ......
That's a long way to go :-?. Isn't there anywhere local? :-/
Thing is I drive past there in the morning, along the A580, so the plan was a quick detour on Fri morn, drop it off and a pickup after work, back home, get a few bits, like new stretch bolts, new head gasket and get it fitted.
Wrong !. it took an hour to get out of Wigan back onto the A580, got held up with holiday traffic so parts place was shut. Fortunately Autovaux was open on Sat morn, so managed to get most of the bits then. Got home to find that the original gasket set was for a different model of 2.2, and the gaskets for the wigit at the rear of the head doesn't fit. I'm going to try a Kellogs gasket to get moving, so I can get a new gasket on Tues.
Ken
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What state are the pistons in?
Small round marks about 100deg of the valve imprint. Not deep, would probably polish out.
Ken
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it took an hour to get out of Wigan ....
I reckon Wigin must have half the country's sets of triffic lights which is why it takes sooooo long to get through the place. I work at Kitt Green and go the 'back roads' through Haigh & Aspull to get to the M61 for a junction to Bolton (jct 5)
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Success, eventually !. First some pics :
(http://i159.photobucket.com/albums/t155/lapbits/PICT3342.jpg)
I was initially sceptical when the engine place phoned up and said I needed new guides, but they gave me the old guides and you can see the cracks. They said they hadn't skimmed it because it didn't need it, but would poss do this for the same price. Bill for this was £210, but it had been cleaned and looked good.
(http://i159.photobucket.com/albums/t155/lapbits/PICT3345.jpg)
new gasket in place ready for the head. You can see the valve marks, they aren't deep its just they have gone thro the carbon to the metal below. Hopefully they haven't damaged the pistons.
(http://i159.photobucket.com/albums/t155/lapbits/PICT3343.jpg)
What is this bit ?. I still need to get a gasket for it, but Mr Kellogs is holding up so far.
I got it all together last night, checked twice nothing loose anywhere near the cambelt, and started up. She was running on 3 pots, very rough, but it was late, and I wasn't going to risk damaging anything by making mistakes. :P
This morning, I checked the cam followers were all moving and rechecked the cambelt timing and tension. All seemed OK, its worrying how the tension varies depending on how far round you are, eg when at TDC, the tensioner is on the new belt mark, however a bit further round and the belt is loose and can be twisted easily.
I started up again, now running on 4 pots, but the clatter from the head :o It quietened down to just one or two tapping near the oil filler, but after 5mins ticking over all were quiet. :y A gentle test drive and she sounds quiet and feels smooth, so sounds like success.
Just got to get a proper gasket for that wigit, and there is still evidence of mayo in the oil getting pumped to the camshafts so I recon a couple of oil changes to get any debris out are in order. :y
Ken