From: The Older Gentleman on
zymurgy <zymurgy(a)technologist.com> wrote:

> On Mar 29, 1:30 pm, "TOG(a)Toil" <totallydeadmail...(a)yahoo.co.uk> wrote:
> > On 29 Mar, 12:25, "Lozzo" <lo...(a)lozzo.org.uk> wrote:
> >
> > > The Older Gentleman wrote:
> > > > Andy Bonwick <nos...(a)bonwick.me.uk> wrote:
> >
> > > > > On 28 Mar 2010 18:35:04 GMT, "Lozzo" <lo...(a)lozzo.org.uk> wrote:
> >
> > > > > > The Older Gentleman wrote:
> >
> > Yup. Except you absolutely have to lock the crank up when you've got
> > the camchain slackened off and are removing or replacing the valve
> > shims. With the 120 degree crank, it *will* try to "roll on" and the
> > camchain *will* try to jump the lower sprocket (and succeed). Happened
> > when we were doing Niall's T'bird. Luckily, there's enough slack in
> > the camchain, with the tensioner off, just to hook it back on
> > correctly, as long as one of you has a death-grip on the nut you use
> > to turn the engine over.
>
> Sounds awful.
>
> But don't you hoick the shim out whilst depressing the follower / cam
> bucket with the cam lobe pointing outwards ?
>
> Why would you loosen the cam chain ?
>
Ah, good question! I remember now. We had a Truimph valve shim tool -
the thing for depressing the bucket - but it was the wrong type and
didn't fit, so we just removed the cams (which is often a quicker way of
doing it anyway).


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