Wouldn't be the first time.... Oil rings installed upside-down!?! Or, the
fellow
lined up all the gaps (does look perdy!). Or... last but perhaps not least, one
of the seals is out in the turbo!!!
WFO
Ptegler wrote:
> 190 180 190 vs 200 200 200 is showing blowby
> 200 vs 200 is perfect.
> Your rings are simply not seated or as mentioned
> earlier...they are glazed.
>
> Paul Tegler ptegler@gouldfo.com www.teglerizer.com
>
> ----- Original Message -----
> From: "Guy Weller" <guy@weller-lakes.freeserve.co.uk>
> To: <spridgets@autox.team.net>
> Sent: Tuesday, July 10, 2001 3:46 PM
> Subject: Re: Blue smoke -sequel
>
> Hi again.
> Compression just read at
> Dry:
> 200/190/180/190
> wet:
> 200/200/200/200
>
> exhaust smoke definately bluer (i.e. no longer whitish) with PCV
> reconnected.
>
> Cleaner looking at constant 3000rpm, but may be just dispersing
> quicker.
> more on throttle blip than on shut down.
>
> Have run on standard 10W/50 throughout. Changed at 1000 miles when
> head retorqued.
>
> I didnt assemble block - it went to engineer who re-bored +40 and
> assembled craank and pistons. I brought it home and assembled the
> rest. Stood for a while before first use.
>
> When head was off last week bores looked unmarked. No apparent glaze,
> but fine criss-cross marks that were on bores have all gone.
>
> Oh, and yes the inlet valves do have those little rubber collars
> fitted!
>
> Thanks for evceryones' forbearance (now there's a word one dosn't hear
> every day!)
>
> Guy
>
> ----- Original Message -----
> From: "Chris Kotting" <ckotting@core.com>
> To: "Guy Weller" <guy@weller-lakes.freeserve.co.uk>
> Cc: <spridgets@autox.team.net>
> Sent: 10 July 2001 20:23
> Subject: Re: Blue smoke -sequel
>
> > The blue color would only be present in the exhaust, since it is a
> > result of oil being *burned*. Somehow, oil (and quite a bit of it)
> is
> > getting into the combustion chambers.
> >
> > Some thoughts:
> >
> > Take a look at the inside of the carbs and manifold. If there is an
> > oily film there, you're sucking it in through the crankcase
> breather.
> > If not, it's either getting past the rings or the valve guides.
> >
> > What kind of oil did you use during the break-in period? When did
> you
> > change it?
> >
> > How much of an overbore? Are you *sure* you've got the correct
> pistons
> > and rings to match the overbore? (I hesitate to suggest it, but as
> > someone else said, sometimes mistakes are made.)
> >
> > Run a compression test.
> >
> > Guy Weller wrote:
> > >
> > > OK, here are some more accurate checks on the problem:
> > >
> > > Steady tick over at 800rpm.
> > > Slight blue colour to exhaust. If run in garage it soon becomes
> > > uninhabitable (as does the kitchen and the whole of the rest of
> the
> > > house 'cos there is an interconnecting door which isn't fume
> proof) -
> > > not popular with "her indoors".
> > > No revs change when I remove oil filler cap. very slight, I mean
> only
> > > just detectable with the help of imagination, positive pressure at
> oil
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