My guesses?
If it's a click, not a rumbling noise, and you have oil pressure and
it still drives, then I'd guess a worn out little end and/ or a worn
out cam lobe and follower.
Best
Chris
Sent from my iPhone
On 23/04/2011, at 10:52 PM, "Patrick and Caroline Quinn" <p_cquinn@tpg.com.au
> wrote:
> G'day
>
>
>
> Here is something to get your collective minds around.
>
>
>
> Yesterday morning we were 560 kilometres from home in the BN3 having
> just
> crossed some many kilometres of featureless plains and semi dessert.
> We
> arrive in a large town looking for fuel and then suddenly an audible
> clanging sound emanates from the engine. We immediately pull over to
> investigate and despite much head scratching nothing significant can
> be
> found. I disconnect the fan belt and also eliminate a rocker hitting
> the
> rocker cover.
>
>
>
> Six and a half hours of sitting in the back seats of a tilt tray
> truck we
> arrive back home.
>
>
>
> Today I removed the rocker cover and all valves are opening
> correctly, plus
> the noise is still there. So what do we think the noise is? Oil
> pressure is
> still good, so it probably isn't a slipped big end. It is definitely
> not
> coming from the gearbox.
>
>
>
> Without taking the engine out, my guess is a broken crankshaft. What's
> yours?
>
>
>
> Hoo Roo
>
>
>
> Patrick Quinn
>
> Sydney, Australia
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