Hello Everyone,
I have an 8V XSi with an XU10J4Z transplanted engine .
No probs whatsoever, but some noises I keep hearing are bothering me:
- some knock / tap at startup, when cold, probably hydraulic lifters, but the sound goes away. Although not all of a sudden, because it sort of returns for a few beats now and then when the engine is still cold.
- gentle tapping / ticking from the head, even when releasing the accelerating pedal, so cannot be the injectors. Not loud, diagnosed as "typical Pug sound" by a PSA mech - still, disturbing a bit. I went ahead and checked the spark plugs to see if they are tight or not and whilst the plugs are, 2 coilpacks move rather freely, they are probably only held in place by the coverplate - could this be the root of the noise?
- pinking, I think, regardless of fuel grade, mostly under acceleration between 2-3000 RPMs, probably carbon built up in the combustion chamber? Might be that the exhaust is not sealed well?
- oil pressure gauge. When the engine temp is below 90C, everything seems fine. In most cases, when the engine temp rises above 90C, the gauge seems to go haywire, displaying all sorts of readings, even bottoming out (of course it seems to display lower levels only, never higher) - yet the main oil pressure warning light does not come on (it works, can see it at startup)
Any ideas would be welcome.

- Total 10W40 oil, level on dipstick at ~4/5, done 6000 kms, filter is OEM
- spark plugs changed ~12000kms ago, Eyquem
- injectors cleaned
- MPG is at ~28, nothing unusual
- ECU changed because of MAP failure, swapped for "brand new" one

Thanks!

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XSi 8V -> S16

Tickimg will be injectors
they still open and close when your off the throttle

Thanks Allan,
Lambda was replaced with the engine and since passed the environmental test. Knock I will test.
The sensor for pressure was infact replaced with that of the XSi, but same result. Maybe a cable issue?

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XSi 8V -> S16

Will this do mate?

82k mile s16 with full service history:

OK, so I managed to grab a vid + sound of the thing.
Be warned, sound quality did suffer - it is less metallic in real life, and not so audible.

Klikk

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XSi 8V -> S16

Conversion was done ~12000 kms ago.
Oil changed twice since.
The conversion included new belts, tensioner, water pump, and new piston bearings (colour coded).
And a new rad

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XSi 8V -> S16