Knocking noise

Novataken

8v on Bike carbs ;)
Jul 30, 2008
160
0
Scunthorpe
:confused:Been for a drive tonight and about 20 minutes before i got home, when i let of the accelerator some thing started knocking. It only did this when i let of the accelorator but when i pressed it again or the brake it stopped knocking.

The knock itself wasn't very loud but it was quite a fast knock.
My car is a Ibiza S 1.4 and it sounded like its coming from the driver side front end.

It was doing this all the way home, then i went out again for 15-20 minutes to try hear where it was coming from but now it has stopped.

The car drove fine before/during/after the knock so do you have any idea what it could be?
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)