katok or knocking

[logbook]

1. what are the possible causes?

2. what is actually happening? (looking for a relatively technical answer)

3. what is the recommended solution to fix it?

[Ungas]

One answer, tuffet adjustments.

Valve seats not properly seated can and could cause to make some knocking sound. Valve clearance needs re-adjustment after some period.

[artpogi]

Bossing Logbook,

This might answer your questions

http://zhome.com/ZCMnL/PICS/detonation/detonation.html

[vinj]

When i experience detonation, is usually check the following:
- fuel (switch to higher octane or another brand)
- ignition timing (check and retard by around 2deg)
- spark plugs (switch to one heat range colder)

These are the usual culprits that can be singled out first before going on to other possibilities.

[DeltaBravo]

i agree with vinj....

Also, try to change oil (and oil filter). Thanks

[logbook]

salamat po! :D