Think it might be possible to remove the piston gudgeon pin and rod from inside the crankcase? (probably not a good idea though)
Half end off, turn crank so it's at the top.
Slide piston in slowly so it just shows the pin and clips, while retaining the rings in the bore compressed.
Remove clip and slide out pin and rod.
Maybe? Have to see the room inside and if the rod slides out enough to reveal the clips.
A wrist pin knock has a very unique sound. And this sound will be different depending on how many of the wrist pins are making the noise. If all the wrist pins are loose, this will sound like an overwhelming rattling inside the engine.
This sound is described as a double knock, because it will cause a noise at the top of the piston travel and when the piston changes direction it will make another noise. This noise is most notable when the engine is idling and the engine is also hot.
Last edited by brit01; 20-10-11 at 20:08.