So, perhaps the connecting rod is installed improperly? Not torqued down?
Thanks for your input.
John
On Sun, Aug 2, 2009 at 2:54 PM, Joe Curry <spitlist@cox.net> wrote:
> I'd suspect a rod knocking. Taking the plug out relieves the compression
> and resulting strain on the bearing.
>
> Joe
>
> -----Original Message-----
> From: triumphs-bounces@autox.team.net
> [mailto:triumphs-bounces@autox.team.net] On Behalf Of Lee&John Howard
> Sent: Sunday, August 02, 2009 1:49 PM
> To: triumph list list
> Subject: [TR] TR4/Webers - that banging noise
>
> Well, it doesn't sound good. I discovered that it is cylinder #3 that is
> banging. Removing that spark plug wire removes the sound and reveals an
> engine no noisier than usual.
>
> So what could be banging in there? The lash is fine. I guess I'm going to
> have to remove the head to investigate, aren't I.
>
> Any ideas?
>
> Thanks
>
> John Howard
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