Originally Posted by
Provocateur
You have to check the piston to wall clearance by measuring the size of the bore and the diameter of the piston and taking the difference between the two.
The expansion of the piston depends on the silicone content. High silicone pistons expand less under heat than low silicone pistons.
You mention that the crank pulley has play in it. It shouldn't have any play in it at all. Try a new bolt and washer to see if that does anything. I had a similar problem with my crank pulley but I don't recall what it sounded like. Here is my thread about it:
https://www.honda-acura.net/forums/s...d.php?t=207874
Thanks alot for that help, it turns out the noise was a mixture of two things.
1.Crank pulley had play, due too missing a washer inbetween pulley and crank :doh:
2.Big ends are defo knocking slightly, so im going to plasti gauge them tomorrow night and order the correct bearings.
Ill keep u informed, thanks again.
Ste