Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: nixoro on 21 November 2008, 08:20:41

Title: Exhaust Manifold Woes
Post by: nixoro on 21 November 2008, 08:20:41
I was traveling up a hill with speed humps the other week and had to dodge some idiot coming the opposite way who was speeding forcing me to bounce awkwardly on a speed hump, before asked I was doing around 15mph if that and had to go to the centre of the road as cars were parked to the left of me.

My car now drives like a crap and I discovered yesterday the manifold is ticking when cold >:(

What are the chances of more damage having occurred.

I am going to be removing the manifold tomorrow to get a better look.

More work  :(

Title: Re: Exhaust Manifold Woes
Post by: Marks DTM Calib on 21 November 2008, 08:23:19
First question has to be.....did the car actualy ground out?
Title: Re: Exhaust Manifold Woes
Post by: nixoro on 21 November 2008, 08:25:29
I think it did cos there was an almighty thud >:( at the time I stopped and had a brief look under the car but had to continue as was late for work.

The car though once warmed up drives nice.
Title: Re: Exhaust Manifold Woes
Post by: nixoro on 21 November 2008, 17:19:00
Any other Ideas on this would be greatly appreciated as its been a while since doing any major work on my car, just thinking their maybe more damage than 1st thought you never know.
Title: Re: Exhaust Manifold Woes
Post by: markey mark on 21 November 2008, 17:27:08
could you have crushed a cat bud ??  :-/
Title: Re: Exhaust Manifold Woes
Post by: nixoro on 21 November 2008, 17:31:42
Quote
could you have crushed a cat bud ??  :-/

That was a thought of mine but shall be giving good look over tomorrow so should be the moment of truth, shall be posting up with my findings.
Title: Re: Exhaust Manifold Woes
Post by: nixoro on 22 November 2008, 19:48:26
Well I had a look at the exhaust today and the manifold, the exhaust still looks solid and I checked all the joins and they look to be leak free. Damn it was cold  :(

The Manifold however I found a loose bolt in the top row and missing  2 bolts in the lower row which annoyed me fortunately no snapped studs.

I had to fit a new bolt in the one which was loose, used my tap & die tool to clean and check the thread in the head, bolt tightened in spot on.

There were 2 lower bolts which i managed to put new bolts in as they were loose but I dont hold much hope for them at the moment as I had a garage do some work on the car a while back when they did the HG and I think they may have mucked the threads up good and proper.

Still moment of truth will be in the morning with a cold start.

My plans for the future are to totally remove the manifold and retap all the threads and fit a new set of bolts.
Title: Re: Exhaust Manifold Woes
Post by: SheWhoMustNotBeOUTBID on 22 November 2008, 20:19:37
My other half has been known to do this a couple of times.  Its a bit of a pain but perfectly doable.  Good luck
Title: Re: Exhaust Manifold Woes
Post by: nixoro on 22 November 2008, 20:25:22
Quote
My other half has been known to do this a couple of times.  Its a bit of a pain but perfectly doable.  Good luck

Cheers  :y its annoying as I have done the manifold a few times now what with failing gaskets and bolts, I had it spot on before taking to a garage and knocking the underside of the car.

Last time I removed the manaifold it was refitted and was spot on all torqued correctly, now regretting letting a garage get there mits on my omega and going near the speed humps always the way a short can cause problems ::).

Just need to find a good dry, warm day and crack on with it.
Title: Re: Exhaust Manifold Woes
Post by: bighed on 22 November 2008, 21:34:09
Not sure if there is a how to on replacing manifold gasket on here for the V6  :-/ (correct me if Im wrong) but would you mind doing one as i got to do my drivers side at some point.  :y Sounds crap when cold dont it  ;D ;D ;D