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From: . on 19 Aug 2008 17:01
On Aug 19, 1:45�pm, "Who Me?" <hitchhi...(a)dont.panic> wrote:

> Like it or not, that's pretty much how it IS with solid lifters.
> The clearances change as the various parts heat up.

No lifters. Adjustable rocker arms follow the cams.


From: The Older Gentleman on 19 Aug 2008 17:30
seabreeze <corriequk(a)yahoo.com> wrote:

> On 19 Aug, 21:33, totallydeadmail...(a)yahoo.co.uk (The Older Gentleman)
> wrote:
> > seabreeze <corrie...(a)yahoo.com> wrote:
> > > I adjusted my tappets as they seemed a little noisy. Did it according
> > > to both Clymer and Haynes manuals to double check everything done ok.
> > > Stilll pretty noisy though bike running fine. Did the front again
> > > nearer to the smaller gap size, still the same. They are quiet when
> > > engine first starts, get noiser as it starts to warm up, then when
> > > really warm are a little quieter. I have tried listening to other
> > > viragos for comparison but it must be a subjective thing - they sound
> > > quieter - but maybe it's just me being nuerotic. What I don't like
> > > about the noise is that it sort of fades out then comes back a little
> > > and isn't completely constant.
> >
> > > The bike has done an indicated 9600 miles, and is a 1994 model.
> >
> > > Is there any way to guess or check if the level of tappet noise is
> > > normal or excessive, and if so, what might need doing?
> >
> > A slack camchain can often sound exactly like excessive tappet clearance
> > noise.
> >
> > Check the camchain(s) tension?
> >
> > --
> > BMW K1100LT Ducati 750SS Yamaha XT600E Honda CB400F
> > chateau dot murray at idnet dot com
> > "What you're proposing to do will involve a lot of time
> > and hassle for no tangible benefit."
>
> Thanks for the reply.
>
> Do you know how easy or otherwise on this bike it is to check camchain
> tension?

Find a manual. I can't remember, off-hand, whether the camchain
tensioners are fully automatic or semi-automatic or even entirely
manual.


--
BMW K1100LT Ducati 750SS Yamaha XT600E Honda CB400F
chateau dot murray at idnet dot com
"What you're proposing to do will involve a lot of time
and hassle for no tangible benefit."
From: The Older Gentleman on 19 Aug 2008 17:30
.. <RhiannonX(a)gmail.com> wrote:

> On Aug 19, 1:45?pm, "Who Me?" <hitchhi...(a)dont.panic> wrote:
>
> > Like it or not, that's pretty much how it IS with solid lifters.
> > The clearances change as the various parts heat up.
>
> No lifters. Adjustable rocker arms follow the cams.

Indeed. Conventional rockers and tappets. The engine, and the 1100, is
basically two SR500 singles tied together and sleeved as appropriate.


--
BMW K1100LT Ducati 750SS Yamaha XT600E Honda CB400F
chateau dot murray at idnet dot com
"What you're proposing to do will involve a lot of time
and hassle for no tangible benefit."
From: Who Me? on 19 Aug 2008 18:45

"." <RhiannonX(a)gmail.com> wrote

>> Like it or not, that's pretty much how it IS with solid lifters.
>> The clearances change as the various parts heat up.

> No lifters. Adjustable rocker arms follow the cams.

Point IS that whatever the part is that does the lifting, it is a solid
piece of metal.......care to give us the composition, Krusty, so we can mold
one in our own blast furnace ??
In this case, the rocker arm is also the "lifter".




From: . on 19 Aug 2008 19:59
On Aug 19, 3:45�pm, "Who Me?" <hitchhi...(a)dont.panic> wrote:

> Point IS that whatever the part is that does the lifting, it is a solid
> piece of metal.......

The term "lifter" comes from the days of flathead engines, when the
cam was in the side of the engine block and the camshift lifted an
adjustable cylindrical *tappet* to open the valve.

> In this case, the rocker arm is also the "lifter".

No, but the adjuster screw may be called a "tappet", because it
contacts the valve.

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