engine knocking

[woodys]

81 Aircooled - 2 ltr 1970cc - East Sussex

Hi Peeps !

Not been using the girl for a couple of weeks, started her up today to find a loud tapping noise, could be a sticky tappet ? but when driving at high revs, you get another noise - more noisier and faster . but this is only at high revs. Any ideas ? im also selling her on here at the moment, so your answers may help people that are interested in buying it.

Hope anyone can help?

Cheers

[jason k]

sounds like a tappet has de pressurised. take it for a good run. it should go.

[kevtherev]

your hydraulic tappet has emptied itself due to lack of use.
Sounds like hell
Take the van for a good long drive (at least 20 mins).. and it will shut itself up

An oil change would help too

[woodys]

Ah Cool

forgot to mention it was slightly lacking acceleration too - would that change what youve said?

Thanks guys

[kevtherev]

yes
the valve timing would be altered

[woodys]

Oh great ! i hope it is that , i'll take it for a good run tomorrow and think about doing an oil change (unless i sell it first) thank you very much for your help