P-1prodrive

please can anyone help.i have a knock on my sti8 on startup.the car has only done 34k.the noise is pretty heavy,sounds like crank possible.but the noise is literally there only for about 1-2 seconds when it starts then instantly goes.rev it to 2-2.5 k and quiet as a mouse. literally it is just on startup.have found the smallest bits of glitter on the dipstick tho. any ideas, or is it the inevitable!.

merlin24

iTrader: (1)

If the noise is there until the oil pressure warning light goes out, then it sounds like a big end bearing has started to pick up unfortunately.
Piston slap tends to last a bit longer until the engine temp comes up.
The timing belt tensioner can also give a mechanical type knock when worn.

Hope it's nothing too serious.

Mick

P-1prodrive

sounds like the worst to be honest mate.only reason i wasnt 100% sure,was that soo many people have said i should hear noise around 2-2.5k, n its quiet as a mouse,just on startup.

P-1prodrive

any ideas welcome,anything else that could make this noise?

scoobydoo_86blue

I GOT A 2004 STI8 MY DID 31K THEN THAT KNOCK STARTED IT SOUNDED LIKE A LOUD RATTLE WEN YOU REV IT. IT WAS THE BIG END SHELLS I JUST HAD IT REBUILT WITH STRONGER CRANK ON IT ETC COST ME AROUND 3000 SO BAD LUCK MATE IF IT IS I WAS GUTTED WEN MY WENT MATE

P-1prodrive

thanks for your advise scoobydoo,im gona change my oil thursday,n c if theres any glitter in the oil,im hoping not, but to b honest,im expecting the worst.