Leak from inlet manifold gaskets while pressure testing...

2.7 V6 30v biturbo - 380 bhp
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neckarsulm
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Leak from inlet manifold gaskets while pressure testing...

Post by neckarsulm » Mon Jun 01, 2009 5:20 pm

I guess this can't be normal, has anyone else come across it?
The only reason I noticed was because water was sitting there from testing the seals on my injectors to which I have now fitted new o-rings and I could see and hear air loss.

It's only slight, do I need to replace the manifold gaskets?

Both sides do it...

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p.binks
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Post by p.binks » Tue Jun 02, 2009 11:27 am

I had the same thing on my RS when pressure tested,big leak on injector seals which are cheap to get and also suspected the inlet manifold gaskets so changed them too,about £3.50 to £4 each from tps,they are pressed metal gaskets.

Good luck

Cheers "Bingo"
2002 Noggy RS4,AP 6 pots,Revo,H&R big arb's,milltek.

neckarsulm
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Post by neckarsulm » Tue Jun 02, 2009 8:00 pm

Thanks Bingo.
Did you do it yourself?
If so how much more work once the fuel rail removed is it?
Are all the bolts easy to get to.
Did you replace the throttle body gasket too or did you not touch it?
Thanks
PS Car feels quicker with just injector seals done (and ambient air temp is much higher than when I last drove it)
[youtube]https://youtu.be/-I1Ok9LTn6o[/youtube]

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p.binks
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Post by p.binks » Tue Jun 02, 2009 9:47 pm

Yes did them myself,easy job once the fuel rail is out of the way but Idid remove the throttle body and pipes from the intercoolers and replaced all the o'ring seals and used "loctite" high temp silicon sealant on the i/c and throttle body seals,put the manifold gaskets on dry without sealant.
All will become clear when you start if you are of a mechanical nature and you might also find some bad vacuum pipes etc at the back of the engine once you get it apart."Bolts" are easy to get to use a 5mm allen key/bit to undo manifold cap head screws and when its off inspect how clean your inlet valves are but try not to drop anything into the ports.

Cheers "Bingo" :nogarors4: :rocker:
2002 Noggy RS4,AP 6 pots,Revo,H&R big arb's,milltek.

neckarsulm
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Post by neckarsulm » Tue Jun 02, 2009 10:04 pm

Excellent, thank you :beerchug:
This forum's been a bit short on good advice recently :|
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UKS4APR1
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Post by UKS4APR1 » Tue Jun 02, 2009 11:05 pm

Whilst you are at it, good idea to do the after-run pump and spider hose, both ready to fail and easy to do when you've got the manifold off.

neckarsulm
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Post by neckarsulm » Wed Jun 03, 2009 7:37 am

Whilst you are at it, good idea to do the after-run pump and spider hose, both ready to fail and easy to do when you've got the manifold off.
Good idea 8)
[youtube]https://youtu.be/-I1Ok9LTn6o[/youtube]

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