Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: amba on 11 January 2011, 09:53:41
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When weather improves will be tackling my o/s exhaust manifold gasket as getting really p***ed with the clicking on cold starts...n/s done before christmas so 1 down /1 to go.
Reading several posts coolant transfer pipe needs removing to allow acces to studs and understand limited access are rear of heads,but does this pipe require any gasket seal when replacing or is it tube sealant ?
Also has any one got a good close up picture of the fittings at the rear of the head as would be usefull to see bolt location on number of .
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The coolant transfer pipe has a small O ring and its secured to the block by 2 torx bolts. I remove the coolant bridge which makes access so much easier.
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Thanks Pete....anyone got a picture of this part fitted to head ?
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A bit of grey sealant to hold the O ring in place in the transfer pipe will help too. . ;)
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Thanks Pete....anyone got a picture of this part fitted to head ?
It fits to the block just below the centre of the V ;)
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Pete, remind me, just how annoying is it to find the o-ring on the floor in a puddle of coolant after reassembly after 2 hard days work ;D ;D ;D
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Pete, remind me, just how annoying is it to find the o-ring on the floor in a puddle of coolant after reassembly after 2 hard days work ;D ;D ;D
;D ;D I still have nightmares ;D
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Pete, remind me, just how annoying is it to find the o-ring on the floor in a puddle of coolant after reassembly after 2 hard days work ;D ;D ;D
;D ;D I still have nightmares ;D
It was at Timbuks I realised I talk too much as well. It took a day and a half to do it the first time and it was the very first exhaust manifold gasket I ever did. Then when I realised when I was topping up the coolant that the O ring had fallen out during reassembly, after a little swearing fit, the bits were removed and reassembled in a couple of hours. Why didn't I keep my mouth shut and do that the first time ;D
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was a good few days :y
ahhh memories, ill never forget that look on your face ;D
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was a good few days :y
ahhh memories, ill never forget that look on your face ;D
Thats why I remove the coolant bridge now, its so much easier to see what your doing ;)
It was a brilliant few days, cars to tinker with, good company and a few beers and a meal afterwards :y
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Ive got a pic of this, I'll post it up in a bit
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Here is the pic of where the coolant pipe meets back of head.
As you can see, removal of the coolant bridge is required. It would also be easier to fully remove the oil cooler pipes, I only slackened the top conections which made it a little awkward.
There are two bolts, diagnolly opposed on the flange. I can't remember which way though.
It might also be a good idea to get the new seals for the bolts for the oil cooler, as mine weren't so hot. I didn't have them at tthe time, but have them now and will do them when I replace oil cooler.
(http://i832.photobucket.com/albums/zz249/geoffr70/Car%20pics/PICT0075.jpg)
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Here are some other pictures if they are of any help. You will need to remove the c/c box aswell if you have it. Only 2 or 3 bolts though.
(http://i832.photobucket.com/albums/zz249/geoffr70/Car%20pics/PICT0074.jpg)
(http://i832.photobucket.com/albums/zz249/geoffr70/Car%20pics/PICT0071.jpg)
(http://i832.photobucket.com/albums/zz249/geoffr70/Car%20pics/PICT0072.jpg)
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Does the coolant transfer pipe need to removed completely or is sufficient space created just by pushing it away from the rear of the head v.
I can see why it is suggetsed to remove the coolant bridge assembly and take advise re oil cooler washers .
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Transfer pipe needs to come out completely. It is tight and you have to bend it round all different ways but it does come out.
It is not possible to take the manifold off, or even get access to the lower studs if coolant transfer pipe is left in place, and pushng it back won't work as there isn't the clearance to get it far enough.
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When i did my gasket, I didn't actually need to. Make sure your SAI pipe isn't breached, like mine was:
(http://i832.photobucket.com/albums/zz249/geoffr70/Car%20pics/PICT0073.jpg)
This has happened to a few other people, and what they thought was there gasket blowing, turned out to be this, which is an easy 10 minute fix.
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Thanks geoffr70..its definitley the exhaust manifold gasket leaking.
When n/s was removed gasket was just like a piece of single gauge paper stuff but did have a genuine gm number on it,so expect the original from build.
Surprised it lasted that long so fair bet the o/s is the same quality hence the blow or tick/tick .
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Does this help at all?
(http://homepages.nildram.co.uk/~aholter/rear-v6.jpg)
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Many Thanks,Andy H.
Very helpfull picture and now explains exactly what I neede to understand.