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engine knocking

Posted: 13 Dec 2009, 22:15
by 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 :)

Re: engine knocking

Posted: 13 Dec 2009, 22:44
by jason k
sounds like a tappet has de pressurised. take it for a good run. it should go.

Re: engine knocking

Posted: 13 Dec 2009, 22:46
by 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

Re: engine knocking

Posted: 13 Dec 2009, 23:05
by woodys
Ah Cool :)

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

Thanks guys

Re: engine knocking

Posted: 13 Dec 2009, 23:11
by kevtherev
yes
the valve timing would be altered

Re: engine knocking

Posted: 13 Dec 2009, 23:18
by 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