I suspect I have a bent valve !

[TonyFromWestOz]

I had an alcohol misting nozzle in the air cleaner, which I found later has a metal insert in a plastic body. Somehow this nozzle has been ingested into the engine. Needless to say, the engine has developed a new sound.
It sounds like it has a bad tappet rattle (OK, cam follower rattle).
I have removed the inlet manifold and the missing nozzle is not to be found.

I believe the ingestion happened while ascending a steep road near my home.
The engine suddenly started to have the tappet rattle.
I re-checked my valve clearances but found them to be within spec.

Is my diagnosis a probable scenario?

I will download the relevant sections od the FSM from the skinnerbox site tonight.

Looks like I will need to buy a top overhaul kit.