Technical What’s this in my intake manifold?

[Jamie KC]

Decided to remove the throttle body to create easier access for my arm and hand to get to the EGR bolts. Throttle body fairly funky, and then there is this super gunked up part sticking out of the intake, see pic below. It’s not pictured on ePER it seems. What is it? Been more of a petrol person until now, so am unsure…

 

[jackwhoo]

It is not a part , it is a mixture of soot from exhaust fumes via the exhaust gas recirculation valve and oil fumes from the crankcase breather system.

 

[Jamie KC]

Well that’s what the gunge is, but what is the part it has gunged over? There’s a solid probe/part of some sort under the gunge.

Basically wanna know what it looks like/what it is that I’m trying to expose, so I know how to treat/scrape it in the cleaning.

 

[jackwhoo]

Not in the parts diagram ....looks very much like just gunge to me not stuck on anything.

 

[Jamie KC]

Scraped it off carefully. Fairly solid metal item underneath, it’s a pipe that’s crimped flat at the end and has 4 ports around it. 2 of them were fully sealed over with crud.

Initially thought it’s perhaps some sort of air flow sensor, pressure sensor etc. But no filament inside the holes. No obvious associated wiring either.

Looking at ePER again and it’s some sort of nozzle for EGR flow through the inlet. This bugger…

 

[The Panda Nut]

Decided to remove the throttle body to create easier access for my arm and hand to get to the EGR bolts. Throttle body fairly funky, and then there is this super gunked up part sticking out of the intake, see pic below. It’s not pictured on ePER it seems. What is it? Been more of a petrol person until now, so am unsure…
View attachment 436499

View attachment 436500

OMG i think I saw a film about that thing when it tried to take over the world...

 

[Eltezz]

Good luck with getting the EGR out. Where you are now is as far as I got when I tried to remove it for cleaning. I couldn’t get any further, simply couldn’t reach the bolts as there is zero room for access at the back of the engine. Gave up in the end and just put it all back together…

 

[Jamie KC]

Good luck with getting the EGR out. Where you are now is as far as I got when I tried to remove it for cleaning. I couldn’t get any further, simply couldn’t reach the bolts as there is zero room for access at the back of the engine. Gave up in the end and just put it all back together…

It came out. Could just see top of it to ID I was on the right part but all bolts had to come out by feel, made a right mess of the back of my hands as they were nestled into a tight gap rubbing against a plastic hose union for so long.

Now, putting it back once I’d cleaned it, that was when I was really regretting it…

 

[Eltezz]

Yup, always the danger when removing stuff by feel, much harder replacing it. Well done though!

 

[the green vanper]

Scraped it off carefully. Fairly solid metal item underneath, it’s a pipe that’s crimped flat at the end and has 4 ports around it. 2 of them were fully sealed over with crud.

Initially thought it’s perhaps some sort of air flow sensor, pressure sensor etc. But no filament inside the holes. No obvious associated wiring either.

Looking at ePER again and it’s some sort of nozzle for EGR flow through the inlet. This bugger…


View attachment 436534

I'd like to see a photo how the alien looks like out of the factory Can you post the part number, please?

 

[KPat]

It's rat poo.

 

[The Panda Nut]

It's rat poo.

Bloody big rat! I thought it must have been a rag but that would surely have got sucked into the engine. It does show cleaning out the manifold periodically is worthwhile.