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D2 - Engine Bay Everything under the bonnet

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Old 16th August 2019, 12:47 PM
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moltuae moltuae is offline
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Default Broken part puzzle

Clue: It's an engine bay part (D2 S8).

Anyone recognise them?

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Or are more clues needed?

I can tell you where (approximately) in the engine bay the parts came from (or rather, where they were found) but presently I have no idea what they do/did.
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Old 16th August 2019, 01:38 PM
MikkiJayne MikkiJayne is offline
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Locating pins for the inlet manifold - one on each bank. They hold the manifold gasket in place and guide the manifold itself in to place on its locating dowels.

They usually snap when the manifold comes off as its almost impossible to lift it straight up with the engine in the car, plus if you don't know about them you don't know not to slide it.

Part number is 078 103 251.
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Old 16th August 2019, 01:55 PM
tintin tintin is offline
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Quote:
Originally Posted by MikkiJayne View Post
Locating pins for the inlet manifold - one on each bank. They hold the manifold gasket in place and guide the manifold itself in to place on its locating dowels.

They usually snap when the manifold comes off as its almost impossible to lift it straight up with the engine in the car, plus if you don't know about them you don't know not to slide it.

Part number is 078 103 251.
Drat - I was just about to say that
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Old 16th August 2019, 02:23 PM
HPsauce HPsauce is offline
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And this is what they're supposed to look like, so you have some headless nylon screws in holes somewhere around your manifold.

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Old 16th August 2019, 02:27 PM
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moltuae moltuae is offline
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I knew you'd know what they were MJ!

Hmmm, so hopefully not too important then?

The story is, I had my inlet manifold replaced yesterday (I had a complete 'new old' manifold that I bought ages ago). There wasn't really anything wrong with the existing manifold but I had been plagued with an oily stink for ages, which turned out to be the valley cover gasket, so the manifold had to come off to get to it. The mechanic seems to have done a great job but he gave those parts to me afterwards, assuming they'd fallen out of the old manifold. Presumably they just 'aid' initial alignment and (since they've managed to fit the new manifold without them), they're not needed?


Quote:
Originally Posted by tintin View Post
Drat - I was just about to say that
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2002 FE S8 Ebony Black Pearl
------------------------------------------------------

------------------------------------------------------
Cars Owned:
The Tesla Era: 2020 Model S Performance Ludicrous+ (present)
(Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability)

The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present)
The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo
The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
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Old 16th August 2019, 10:59 PM
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The_Laird The_Laird is offline
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Yet another failed attempt to ask a question that MJ can’t answer! ��
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