Help! Manifold Question

[Badger Audi]

On the cusp of buying a B6 S4. When I looked at the engine yesterday, I noticed the manifold seems to be melted(ing?). I have a few questions: Is this common? How problematic is this? Is it an easy fix? How much? Is this a deal breaker? Pic below. Thanks for your help!!

[IMG]IMG_2996 by M S, on Flickr[/IMG]

[chain_slappins4]

wow.. I've never seen that before... but considering that the manifold is made from plastic/composit material... I would venture a guess that , that bank may have overheated at one time, have you done a compression/ leak down test, and have you borescoped the cylinders?.. that would be the first things I would do before buying...

I could be wrong, but that's my guess... I'm sure someone who knows more will chime in...

Sent from the S4 with a Tap!!!

[jakeoboy67]

wow.. I've never seen that before... but considering that the manifold is made from plastic/composit material... I would venture a guess that , that bank may have overheated at one time, have you done a compression/ leak down test, and have you borescoped the cylinders?.. that would be the first things I would do before buying...

I could be wrong, but that's my guess... I'm sure someone who knows more will chime in...

Sent from the S4 with a Tap!!!

are you sure about that ? from what I've heard/read , the manifold is made of a certain aluminium-magnesium alloy.

my manifold looks a bit like this around the injector holes, seems like the paint/coating is becoming detached from the surface( I'll have to powdercoat it soon)

[chain_slappins4]

are you sure about that ? from what I've heard/read , the manifold is made of a certain aluminium-magnesium alloy.

my manifold looks a bit like this around the injector holes, seems like the paint/coating is becoming detached from the surface( I'll have to powdercoat it soon)

it seems way to light to be made of a metal alloy, I could be totally wrong, but I've machined magnesium and it's a bit heavier.... I hope I am wrong for the sake of the OP...

also, if you look at the bottom of the manifold, it almost looks like it's been wrapped..... but again, like I said, i hope I'm wrong

Sent from the S4 with a Tap!!!

[BCsniper]

most B6's came with a magnesium alloy intake. B7's came with plastic

[chain_slappins4]

ahhhh maybe that's why.. I've never pulled the IM on my B6, only the B7 that's being parted out.... well I did say that i.hoped I was wrong..

Sent from the S4 with a Tap!!!

[Badger Audi]

I haven't ran a compression test on the car yet - will have it done this week.. Car runs fine and doesn't overheat on temp gauges, has reg oil changes and isn't burning oil.. I know the owner re-powder coated the top of the manifold when he did the valve covers.

Is this a red flag? I could always get a new manifold to throw on the top, if it is that problematic.

[Terry.Reese]

I have 2 tops. Couple scratches on the paint. Can sand blast one if you want to get it powder coated. Pm of you want to talk more on it.

[AllroadMass]

My wife's 4.2 allroad manifold is doing something similar. I think the paint is just flaking off. Hope you snag it soon.

[Badger Audi]

I might upgrade the manifold anyways, which hopefully would happen within the first few months of owning the car. I made an offer on this thing yesterday and am hoping to be an S4 owner by the end of this week :)

[AllroadMass]

Sweet! Good luck. I've only put a little over 2k miles on it but I love it so far.

[TarlCabot]

most B6's came with a magnesium alloy intake. B7's came with plastic

B7 is same as B6 composite... its just coated with a plastic substance on the outside...

[gautam]

My intake manifold cover's paint chipped pretty badly, had to powder coat it. My valve covers are doing a similar thing so they'll be done soon. It also looks like you have a broken "V8 - 4.2" vanity piece.

[Sphawkins007]

Maybe he sprayed it with brake clean or some other harsh substance to clean it up a bit. Ate the paint away