The Older Gentleman

Mungo "Two Sheds" Toadfoot <eastREMOVEkent@gmail.com> wrote:

> the rings weren't installed properly and it's been burning
> a bit of oil as a consequence. The picture of the left piston shows the ring
> gaps all lined up together.

Exactly what I was thinking. You want 120 degree spacing of the ring
gaps.


--
K1100LT 955i 750SS CB400F CD250 CM200 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60
The bells, the bells.....

sweller

The Older Gentleman wrote:

> > the rings weren't installed properly and it's been burning
> > a bit of oil as a consequence. The picture of the left piston shows
> > the ring gaps all lined up together.
>
> Exactly what I was thinking. You want 120 degree spacing of the ring
> gaps.

Four strokes don't have their rings pegged (in the same way as a two
stroke) and the rings jiggle round quite happily.

Whether they're 120 degrees spaced or not the scoring wasn't caused by
blow by. If it was it's convenient that it's so accurately spaced around
the piston.

--
Simon

Mungo \Two Sheds\ Toadfoot

sweller wrote:
> The Older Gentleman wrote:
>
>>> the rings weren't installed properly and it's been burning
>>> a bit of oil as a consequence. The picture of the left piston shows
>>> the ring gaps all lined up together.
>>
>> Exactly what I was thinking. You want 120 degree spacing of the ring
>> gaps.
>
> Four strokes don't have their rings pegged (in the same way as a two
> stroke) and the rings jiggle round quite happily.
>
> Whether they're 120 degrees spaced or not the scoring wasn't caused by
> blow by. If it was it's convenient that it's so accurately spaced
> around the piston.

Having looked further into piston rings, their spacing and end gaps, rather
than just taking the word of Wiseco, it appears I was talking, and
believing, bollocks and neither spacing *or* end gaps are to blame for your
engine's problems as they are both largely irrelevant!

As you were then!

--
Si - XV535

Steve Parry

In news:xn0f9fywxrmcr6003@news.individual.net,
sweller <sweller@mztech.fsnet.co.uk> wibbled
> The Older Gentleman wrote:
>
>>> the rings weren't installed properly and it's been burning
>>> a bit of oil as a consequence. The picture of the left piston shows
>>> the ring gaps all lined up together.
>>
>> Exactly what I was thinking. You want 120 degree spacing of the ring
>> gaps.
>
> Four strokes don't have their rings pegged (in the same way as a two
> stroke) and the rings jiggle round quite happily.
>
mine are ...

<snip>

--
Steve Parry
K100RS SE & F650
and a 520i SE Touring for comfort
www.gwynfryn.co.uk

Pip Luscher

On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
<k100rs_1990removethis@hotmail.com> wrote:

>In news:xn0f9fywxrmcr6003@news.individual.net,
>sweller <sweller@mztech.fsnet.co.uk> wibbled
>> Four strokes don't have their rings pegged (in the same way as a two
>> stroke) and the rings jiggle round quite happily.
>>
>mine are ...

One of the later K100s, presumably.

--
-Pip

deadmail@burnt.org.uk

Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote in
message <k144b3pe6dbhmo4nm938n3e42j0uqihk5l@4ax.com>:

>On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
><k100rs_1990removethis@hotmail.com> wrote:
>
>>In news:xn0f9fywxrmcr6003@news.individual.net,
>>sweller <sweller@mztech.fsnet.co.uk> wibbled
>>> Four strokes don't have their rings pegged (in the same way as a two
>>> stroke) and the rings jiggle round quite happily.
>>>
>>mine are ...
>
>One of the later K100s, presumably.

I wasn't aware any of the K100s were pegged.

You learn something new every day.
--
K75RT, K1100LT, ZXR750H1, 5TA.

I know I aint doing much,
doing nothing means a lot to me.

Pip Luscher

On Thu, 02 Aug 2007 18:58:58 +0100, deadmail@burnt.org.uk wrote:

> Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote in
>message <k144b3pe6dbhmo4nm938n3e42j0uqihk5l@4ax.com>:
>
>>On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
>><k100rs_1990removethis@hotmail.com> wrote:
>>
>>>In news:xn0f9fywxrmcr6003@news.individual.net,
>>>sweller <sweller@mztech.fsnet.co.uk> wibbled
>>>> Four strokes don't have their rings pegged (in the same way as a two
>>>> stroke) and the rings jiggle round quite happily.
>>>>
>>>mine are ...
>>
>>One of the later K100s, presumably.
>
>I wasn't aware any of the K100s were pegged.
>
>You learn something new every day.

It was to stop the infamous smokescreen when they were left on the
sidestand, I believe.

--
-Pip

Pip Luscher

On Thu, 02 Aug 2007 19:17:24 GMT, Pip Luscher
<pips.computer@spammers.foad.ntlworld.co.uk> wrote:

>On Thu, 02 Aug 2007 18:58:58 +0100, deadmail@burnt.org.uk wrote:
>
>> Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote in
>>message <k144b3pe6dbhmo4nm938n3e42j0uqihk5l@4ax.com>:
>>
>>>On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
>>><k100rs_1990removethis@hotmail.com> wrote:
>>>
>>>>In news:xn0f9fywxrmcr6003@news.individual.net,
>>>>sweller <sweller@mztech.fsnet.co.uk> wibbled
>>>>> Four strokes don't have their rings pegged (in the same way as a two
>>>>> stroke) and the rings jiggle round quite happily.
>>>>>
>>>>mine are ...
>>>
>>>One of the later K100s, presumably.
>>
>>I wasn't aware any of the K100s were pegged.
>>
>>You learn something new every day.
>
>It was to stop the infamous smokescreen when they were left on the
>sidestand, I believe.

Oh, bad form, etc.

You're saying they didn't peg rings until the 1100?

--
-Pip

The Older Gentleman

Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote:

> On Thu, 02 Aug 2007 18:58:58 +0100, deadmail@burnt.org.uk wrote:
>
> > Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote in
> >message <k144b3pe6dbhmo4nm938n3e42j0uqihk5l@4ax.com>:
> >
> >>On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
> >><k100rs_1990removethis@hotmail.com> wrote:
> >>
> >>>In news:xn0f9fywxrmcr6003@news.individual.net,
> >>>sweller <sweller@mztech.fsnet.co.uk> wibbled
> >>>> Four strokes don't have their rings pegged (in the same way as a two
> >>>> stroke) and the rings jiggle round quite happily.
> >>>>
> >>>mine are ...
> >>
> >>One of the later K100s, presumably.
> >
> >I wasn't aware any of the K100s were pegged.
> >
> >You learn something new every day.
>
> It was to stop the infamous smokescreen when they were left on the
> sidestand, I believe.

I thought that was simply a matter of valve stem seals that didn't leak.


--
K1100LT 955i 750SS CB400F CD250 CM200 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60
The bells, the bells.....

Timo Geusch

The Older Gentleman wrote:

> Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote:
>
> > On Thu, 02 Aug 2007 18:58:58 +0100, deadmail@burnt.org.uk wrote:
> >
> > > Pip Luscher <pips.computer@spammers.foad.ntlworld.co.uk> wrote in
> > > message <k144b3pe6dbhmo4nm938n3e42j0uqihk5l@4ax.com>:
> > >
> > > > On Thu, 2 Aug 2007 07:47:42 +0300, "Steve Parry"
> > >><k100rs_1990removethis@hotmail.com> wrote:
> > > >
> > > > > In news:xn0f9fywxrmcr6003@news.individual.net,
> > >>>sweller <sweller@mztech.fsnet.co.uk> wibbled
> > >>>> Four strokes don't have their rings pegged (in the same way as
> > a two >>>> stroke) and the rings jiggle round quite happily.
> > > > > >
> > > > > mine are ...
> > > >
> > > > One of the later K100s, presumably.
> > >
> > > I wasn't aware any of the K100s were pegged.
> > >
> > > You learn something new every day.
> >
> > It was to stop the infamous smokescreen when they were left on the
> > sidestand, I believe.
>
> I thought that was simply a matter of valve stem seals that didn't
> leak.

Nope, you're thinking of their car engines. Oil seeps past the rings,
hence the cloud at startup.

--
Morini Corsaro 125 | CB450K4 | XL250 Motosport x2 | 900SSD
Triumph T-Bird chop | K1100LT BOTAFOF #33 TWA#10
The UKRM FAQ: http://www.ukrm.net/faq/index.html
"Je profite du paysage" - Joe Bar

The Older Gentleman

Timo Geusch <tnewsSPAMMENOT@unixconsult.co.uk> wrote:

> > > > I wasn't aware any of the K100s were pegged.
> > > >
> > > > You learn something new every day.
> > >
> > > It was to stop the infamous smokescreen when they were left on the
> > > sidestand, I believe.
> >
> > I thought that was simply a matter of valve stem seals that didn't
> > leak.
>
> Nope, you're thinking of their car engines. Oil seeps past the rings,
> hence the cloud at startup.

Cor, isn't ukrm educational? I always thought it seeped past the valve
seals.


--
K1100LT 955i 750SS CB400F CD250 CM200 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60
The bells, the bells.....

Hog

The Older Gentleman wrote:
> Timo Geusch <tnewsSPAMMENOT@unixconsult.co.uk> wrote:
>
>>>>> I wasn't aware any of the K100s were pegged.
>>>>>
>>>>> You learn something new every day.
>>>>
>>>> It was to stop the infamous smokescreen when they were left on the
>>>> sidestand, I believe.
>>>
>>> I thought that was simply a matter of valve stem seals that didn't
>>> leak.
>>
>> Nope, you're thinking of their car engines. Oil seeps past the rings,
>> hence the cloud at startup.
>
> Cor, isn't ukrm educational? I always thought it seeped past the valve
> seals.

Think about it man!
Valve seals are made to hold back oil in long term immersion.
Piston rings are made to hold back spontaneous pressure.
Even with pegged rings if you upend an engine full of oil it will eventually
all percolate out.

People are talking bollocks about the K however.
What side are the cylinders on?
What side is the sidestand on?

No I don't know why they sometimes smoke when left on the sidestand either!
not all do and not all do every time.

--
Hog
'03 ST4S '96 Bastard12 '89 R100RS '81 XS650 '78 RD400

The Older Gentleman

Hog <hogSPAM@freenetCHIPS.co.uk> wrote:

> People are talking bollocks about the K however.
> What side are the cylinders on?

Erm, the left-hand side.

> What side is the sidestand on?

Erm, the left-hand side.

YTC

--
K1100LT 955i 750SS CB400F CD250 CM200 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60
The bells, the bells.....

Hog

The Older Gentleman wrote:
> Hog <hogSPAM@freenetCHIPS.co.uk> wrote:
>
>> People are talking bollocks about the K however.
>> What side are the cylinders on?
>
> Erm, the left-hand side.
>
>> What side is the sidestand on?
>
> Erm, the left-hand side.
>
> YTC

*snort*

I thought I would try it on with YTC's seeing as it's Friday

<curses, rumbled>

Yes it percolates through the rings and they all do it Sir.

TBF the old dogs do it more, not because the bores wear, the rings do. I
don't know what special Nikasil process they use on K bores but if you run
up 50,000 miles then strip the engine the *very* light and fine diamond
honing marks are still perfect. Throw in new rings, run them in, new engine
time.

--
Hog
'03 ST4S '96 Bastard12 '89 R100RS '81 XS650 '78 RD400