Annoying Weird noise

[keiran]

hi
when im driving going up through the gears,i get to 3500 rpm then when you back of on the throttle ready to dip the clutch to change
that split second before you hit the clutch i get a quick rattle/pink
noise??? or if im in top just holding it about 3500 about 80-90 mph, i get same noise sort of comes and goes, but if i floor it through it , the noise disapeers and is not there at all. it just seems to do it on acceleration and holding it at set speed.it literally lasts a split second while accelerating,it dos'nt smoke or loose any power

was wondering if it was a mixture/timing setting fault

the engines a 325

appreciate any ideas as its pissing me off now
cheers keiran

[Demlotcrew]

What exhaust u got on it?

Andrew

[keiran]

just a standard one i think not changed it since i had it

[MONSPORT42]

Check prop shaft couplings/UJs for wear, they can make a 'tinkling' noise under the conditions you describe.