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Author Topic: Oil leak rear end of engine, 2,6v6  (Read 2283 times)

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Petter

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Oil leak rear end of engine, 2,6v6
« on: 01 April 2014, 13:28:29 »
Hi
My omega have a leak at the rear end of the engine
The Opel garage told me that it is the rear crank seal that is gone. But I don't trust them. So is there any other plases at the rear end of the engine dere there can be a leak?
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chrisgixer

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Re: Oil leak rear end of engine, 2,6v6
« Reply #1 on: 01 April 2014, 13:59:09 »
Assuming auto...

If the bung in the bottom of the bell housing is removed and oil is found in the bell housing, then yes, rear crank seal failed.

If not it could of blown back from anywhere.
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05omegav6

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Re: Oil leak rear end of engine, 2,6v6
« Reply #2 on: 01 April 2014, 14:15:51 »
Manual have the same bung fitted :y
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Petter

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Re: Oil leak rear end of engine, 2,6v6
« Reply #3 on: 01 April 2014, 14:30:21 »
Quote from: chrisgixer on 01 April 2014, 13:59:09
Assuming auto...

If the bung in the bottom of the bell housing is removed and oil is found in the bell housing, then yes, rear crank seal failed.

If not it could of blown back from anywhere.
Yes it is auto.
The bellhouse is dry and clean.
That is the reason I don't belive it is the crank seal.
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chrisgixer

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Re: Oil leak rear end of engine, 2,6v6
« Reply #4 on: 01 April 2014, 14:32:11 »
I agree with you then, in that case.

Usually it gets blown back from the top,of the sump. Where all oil leaks collect.
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05omegav6

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Re: Oil leak rear end of engine, 2,6v6
« Reply #5 on: 01 April 2014, 17:51:44 »
If the camcover gaskets have recently been changed, then are the half moons seated correctly :-\

Don't ask, but I guarantee that they leak like a bastid if not fitted correctly :-X
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Grrrrrr

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Re: Oil leak rear end of engine, 2,6v6
« Reply #6 on: 02 April 2014, 09:41:56 »
Where is the bung exactly?
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05omegav6

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Re: Oil leak rear end of engine, 2,6v6
« Reply #7 on: 02 April 2014, 10:47:18 »
Bottom of the bellhousing oval shaped, 1" X 3" near enough :y
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Grrrrrr

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Re: Oil leak rear end of engine, 2,6v6
« Reply #8 on: 03 April 2014, 23:09:22 »
Cheers. Will have a look next time I'm under there. Just in case!
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Petter

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Re: Oil leak rear end of engine, 2,6v6
« Reply #9 on: 04 July 2015, 13:17:28 »
Hi... My car still have the leak, so I had another look at the engine today. I thought I would change the camcoversealing as I believed the oil leaking came from camcovers. After stripping down the engine to get access, I noticed that the engine is dry and clean. No trace of oil around the covers. Also had a look at the oilcooler. It's clean.
Maybe it is the crankseal after all ????  :-\
Petter
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Petter

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Re: Oil leak rear end of engine, 2,6v6
« Reply #10 on: 28 July 2015, 20:17:42 »
Hi.
I went for it and left my omega at the local opelgarage to change the crank seal at the rear of the engine. They called me back and told me that it is the crank seal in the front of the engine that leaks.
So now I'm waiting for the garage to replace it.
I'll give you an update when I get the car back.
Petter
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EMD

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Re: Oil leak rear end of engine, 2,6v6
« Reply #11 on: 28 July 2015, 20:45:05 »
Sure it wasnt the oil pressure switch  :-\
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Petter

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Re: Oil leak rear end of engine, 2,6v6
« Reply #12 on: 31 July 2015, 13:13:57 »
Hi again..
I can now confirm that it was the front crank seal.
Case solved.   :y
Petter
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jimbo125

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Re: Oil leak rear end of engine, 2,6v6
« Reply #13 on: 31 July 2015, 18:32:08 »
Good, now enjoy it back on the road :y
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2.5V6 Had it since 2002, what a beast, worth the time and effort to keep it road worthy. Vauxhall bring them back!!! Laser timing kit for OOF member hire
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