Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: mijfife on 11 September 2006, 18:15:27
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Hi guys, I decided to delve a bit deeper into my supposedly knackered 2lt engine from the 1999 GLS that I bought the other week. The story was that they thought it had been run low on oil with lots off knocking noises and a blown head gasket. I whipped the balance shafts off and inspected all the crank bearings and conrod bearings. All looked to be in good condition in keeping with a 98k mile engine. definitely not starved of oil then :) The piston bores are also excellent and there is no piston slap either. Then I turned my attention to the cylinder head. have a look at this pic!
http://i96.photobucket.com/albums/l193/mijfife/head003.jpg
I can only assume that the gasket had gone and the car has been driven for quite a while as I've never seen a breach like this before! Id also assume that this was the cause of the knocking noises??
So the dilema is, do I go with my original block, and source another head? I assume a cylinder head from an earlier 2ltr will fit okay? The Haynes manual says to renew the big end cap bolts and cylinder head bolts, do they stretch when fitted?
I'd be interested in what you think.
Cheers Jim
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I'd go for a replacement head. And I'd renew the suggested bolts, could be a quick easy fix.
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That is so bad as to almost make two cylinders into one! I'm trying to work out how it ran at all. One cylinder must have been trying to compress and chucking it all out of the exhaust on the adjacent one. Jeez :o
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That is so bad as to almost make two cylinders into one! I'm trying to work out how it ran at all. One cylinder must have been trying to compress and chucking it all out of the exhaust on the adjacent one. Jeez :o
That what I thought, no wonder the poor thing was making lots of knocking noises :o
cheers Jim
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Head I'd say - or weld and grind that one
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i nearly bought this before you did mate - i think lol is it a facelift?
engine in boot?
Sounds like you should go top end first and see if the cheapr easier option cures the problem, maybe no bottom end "issues" after all?
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Hi Markiec, yes it's a facelift, came from Alloa, does it sound familiar :)
Cheers Jim
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Hi Markiec, yes it's a facelift, came from Alloa, does it sound familiar :)
Cheers Jim
ha ha yes mate its the very one
good luck with it!
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New head imo good luck with the repair may have to do the same with mine, keep us updated. :)
Wonder what caused it.
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yes do keep us informed as i nearly had an intrest in this would be good to see more piccies :)
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I'll keep you all informed as to progress. I did a major phone around all the local breakers yards and the 2ltr ecotech with balancer shafts seems to be like the proverbial hens teeth! One place "might have one" but at £275 I think they can keep it :o I think I'll bite the bullet and go get a cylinder head tomorrow. At least by taking it off myself, I'll be able to work out what goes where a bit easier and it should be a much cheaper fix.
I did make a bit of progress today, I fixed the broken glove box catch. Well start small and work my way up towards the big hole at the front ;D
Cheers Jim
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......I think I'll bite the bullet and go get a cylinder head tomorrow. ........
How about this? ------> brand new head (http://cgi.ebay.co.uk/Ecotech-cylinder-head-Vectra-Astra-Omega_W0QQitemZ140027966552QQihZ004QQcategoryZ10404QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)
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I'll keep you all informed as to progress. I did a major phone around all the local breakers yards and the 2ltr ecotech with balancer shafts seems to be like the proverbial hens teeth! One place "might have one" but at £275 I think they can keep it :o I think I'll bite the bullet and go get a cylinder head tomorrow. At least by taking it off myself, I'll be able to work out what goes where a bit easier and it should be a much cheaper fix.
I did make a bit of progress today, I fixed the broken glove box catch. Well start small and work my way up towards the big hole at the front ;D
Cheers Jim
Are you looking to get a new new head as i would be interested to know much it will cost.
Cheers Roy :)
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go on - go for the real challenge and do what i was gonna do - sink a 2.5 into it - mind you easier as i have one spare ( its just sitll in the car ;D )
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Thanks for pointing that one out broocie, I'm just gonna stick a second hand one on tho, save grinding in valves etc and there's a fair bit of surface rust on the cams.
Markiec, a 2.5 would be a damn sight easier to get than the ecotech!!! The lpg is set up for the 2ltr so I'll stick with that............for now at least ;) did you go to see my Omega then? It looks a lot better after a good wash, still got the interior to clean up a bit but I'll get it running first!
Cheers Jim
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hi i have a 2l ecotec for sale
if interested
my no is 07947300733
thanx
chris
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Thanks for pointing that one out broocie, I'm just gonna stick a second hand one on tho, save grinding in valves etc and there's a fair bit of surface rust on the cams.
Markiec, a 2.5 would be a damn sight easier to get than the ecotech!!! The lpg is set up for the 2ltr so I'll stick with that............for now at least ;) did you go to see my Omega then? It looks a lot better after a good wash, still got the interior to clean up a bit but I'll get it running first!
Cheers Jim
no didnt get to see it, one of a number i have enquired after ( got 4 vehicles just now) and that wat too low.....
would love to see some pics on here - sure we all would mate ;)