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Next: XL 125
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External
Since: Feb 04, 2006
Posts: 52
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(Msg. 1) Posted: Sat Nov 11, 2006 12:09 pm
Post subject: too much oil in blackbird
Archived from groups: uk>rec>motorcycles (more info?)
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what are the consequences of doing this ? Seems like the previous owner
thought it should be at the top of the flat bit on the dipstick ( not
the upper line as per Haynes ). seems to go ok... no obvious trouble.
I've drained it out and there does not seem to be any coolant in
there...
--
Si |
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External
Since: Aug 16, 2006
Posts: 20
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(Msg. 2) Posted: Sat Nov 11, 2006 1:41 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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wessie wrote:
> "mr p" wrote in
> @b28g2000cwb.googlegroups.com:
>
> > what are the consequences of doing this ? Seems like the previous owner
> > thought it should be at the top of the flat bit on the dipstick ( not
> > the upper line as per Haynes ). seems to go ok... no obvious trouble.
> > I've drained it out and there does not seem to be any coolant in
> > there...
> >
>
> I don't know specifically about the Blackbird but on some vehicles excess
> oil can get blown into the airbox through the crankcase breather. This
> happens on boxer twins. I'd whip the air filter out for a looksee.
Oil in the induction can affect fuel anti-knock properties.
I believe that another issue in the case of wet sump
engines (and I suppose that the Blackbird is such) is that it is
possible for the cranky bits to strike the oil and cause frothing.
The frothed oil then does not provide correct lubrication.
In bikes there may be more room for a sump since the
engine crank height is determined by banked ground clearance
and there may well be considerable vertical room available.
The oil system has to be designed to cope with
ferocious forward acceleration and also braking. There may well
be room for more overfill that might be expected in a car since
in that case the engine height is critical to CG height.
I have heard that this was an issue on Mk1 BMC 1800
1965 ish and that after a number of premature engine failures
the dipstick was re-calibrated correctly. |
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External
Since: Feb 04, 2006
Posts: 52
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(Msg. 3) Posted: Sat Nov 11, 2006 2:25 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Bod43.RemoveThis@hotmail.co.uk wrote:
> wessie wrote:
> > "mr p" wrote in
> > @b28g2000cwb.googlegroups.com:
> >
> > > what are the consequences of doing this ? Seems like the previous owner
> > > thought it should be at the top of the flat bit on the dipstick ( not
> > > the upper line as per Haynes ). seems to go ok... no obvious trouble.
> > > I've drained it out and there does not seem to be any coolant in
> > > there...
> > >
> >
> > I don't know specifically about the Blackbird but on some vehicles excess
> > oil can get blown into the airbox through the crankcase breather. This
> > happens on boxer twins. I'd whip the air filter out for a looksee.
>
> Oil in the induction can affect fuel anti-knock properties.
>
> I believe that another issue in the case of wet sump
> engines (and I suppose that the Blackbird is such) is that it is
> possible for the cranky bits to strike the oil and cause frothing.
>
> The frothed oil then does not provide correct lubrication.
>
> In bikes there may be more room for a sump since the
> engine crank height is determined by banked ground clearance
> and there may well be considerable vertical room available.
> The oil system has to be designed to cope with
> ferocious forward acceleration and also braking. There may well
> be room for more overfill that might be expected in a car since
> in that case the engine height is critical to CG height.
>
> I have heard that this was an issue on Mk1 BMC 1800
> 1965 ish and that after a number of premature engine failures
> the dipstick was re-calibrated correctly.
thanks. two inteligent sounding answers from UKRM I'm well chuffed,
I'll hook the air filter out next chance I get ! >> Stay informed about: too much oil in blackbird |
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External
Since: Oct 29, 2004
Posts: 1860
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(Msg. 4) Posted: Sat Nov 11, 2006 8:54 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"mr p" wrote in
@b28g2000cwb.googlegroups.com:
> what are the consequences of doing this ? Seems like the previous owner
> thought it should be at the top of the flat bit on the dipstick ( not
> the upper line as per Haynes ). seems to go ok... no obvious trouble.
> I've drained it out and there does not seem to be any coolant in
> there...
>
I don't know specifically about the Blackbird but on some vehicles excess
oil can get blown into the airbox through the crankcase breather. This
happens on boxer twins. I'd whip the air filter out for a looksee.
--
wessie at tesco dot net
BMW R1150GS >> Stay informed about: too much oil in blackbird |
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External
Since: Feb 21, 2006
Posts: 708
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(Msg. 5) Posted: Sat Nov 11, 2006 10:37 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On 11 Nov 2006 14:25:02 -0800, "mr p" wrote:
>thanks. two inteligent sounding answers from UKRM I'm well chuffed,
>I'll hook the air filter out next chance I get !
Do that air filter thing, it certainly won't do any harm.
However - and I'm no 'Bird expert - are you /certain/ that you are
reading the dipstick correctly - and with the stick in the correct
position? Some bikes require the stick to be fully screwed in, but
some (and iirc Honda is among them) require the dipstick to be
unscrewed and resting on the edge of the hole into which it screws, to
gain an accurate guage of the level of oil in the sump.
--
Pip: B12 >> Stay informed about: too much oil in blackbird |
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External
Since: Aug 27, 2006
Posts: 5
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(Msg. 6) Posted: Sat Nov 11, 2006 11:15 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
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"Pip" wrote in message
> and iirc Honda is among them) require the dipstick to be
> unscrewed and resting on the edge of the hole
True. Also, be sure you don't measure the oil level with the bike on the
side stand 
Mark >> Stay informed about: too much oil in blackbird |
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External
Since: Sep 01, 2005
Posts: 105
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(Msg. 7) Posted: Sun Nov 12, 2006 9:32 am
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
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External
Since: Feb 04, 2006
Posts: 52
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(Msg. 8) Posted: Sun Nov 12, 2006 12:43 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
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Mitch wrote:
> Relax - the abuse engines can and do take is amazing esp. Honda: I bought a
> CB250N which rode really sluggish and made a funny noise - checked loads
> then tried oil level; the oil had been filled to the TOP of the filler hole.
> I drained out about a gallon of excess oil to correct level and it ran fine.
> Surprising it didn't explode.
>
> I also have an XX and can't decide whether I should drain the carbs as it
> wont be used before April 07 or just leave it and hope it wont gunge up the
> jets. Any ideas?
good to know I'm not the only one, I did have a look at the dip stick
before buying the bike, however it was on the side stand, and I thought
' great, golden'ish oil cant be bad '...
dude there is a tap under the tank if you want to fire her up with it
turned off it'll clear the carbs. Well recomended in my opinion,
although a good shot of redex in spring might be just as good. I bet
if she's been sat there for any length of time they are probably
already empty, mine seems to have a distinct petrolly smell like any
carb. should do . better still take advantage of this global warming
phenomina. and get out there and enjoy the balmy November weather. I
have been out cycling in my shorts today ( although I did have a hat
and gloves on ..) >> Stay informed about: too much oil in blackbird |
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External
Since: Feb 04, 2006
Posts: 52
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(Msg. 9) Posted: Sun Nov 12, 2006 12:46 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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mb wrote:
> On Sun, 12 Nov 2006 02:41:09 -0800, mr p wrote:
>
> > The XX is sorted now, fresh oil and ready to go, it's going
> > to be nice and warm tomorrow .
>
> The bike, not the weather, I assume.
no mate, it's forcast at 12 degrees... bloody tropical >> Stay informed about: too much oil in blackbird |
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External
Since: Dec 07, 2004
Posts: 447
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(Msg. 10) Posted: Sun Nov 12, 2006 2:08 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Bod43.DeleteThis@hotmail.co.uk wrote:
> wessie wrote:
> > "mr p" wrote in
> > @b28g2000cwb.googlegroups.com:
> >
> > > what are the consequences of doing this ? Seems like the previous owner
> > > thought it should be at the top of the flat bit on the dipstick ( not
> > > the upper line as per Haynes ). seems to go ok... no obvious trouble.
> > > I've drained it out and there does not seem to be any coolant in
> > > there...
> > >
> >
> > I don't know specifically about the Blackbird but on some vehicles excess
> > oil can get blown into the airbox through the crankcase breather. This
> > happens on boxer twins. I'd whip the air filter out for a looksee.
>
> Oil in the induction can affect fuel anti-knock properties.
Oil in the induction can set on fire and torch the engine whilst you're
driving into a petrol station and parking at a petrol pump.
DAMHIK, IJDOK [1]
P.
[1] Admittedly, in a cage .... >> Stay informed about: too much oil in blackbird |
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External
Since: Nov 05, 2006
Posts: 3
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(Msg. 11) Posted: Sun Nov 12, 2006 4:08 pm
Post subject: Re: too much oil in blackbird [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Relax - the abuse engines can and do take is amazing esp. Honda: I bought a
CB250N which rode really sluggish and made a funny noise - checked loads
then tried oil level; the oil had been filled to the TOP of the filler hole.
I drained out about a gallon of excess oil to correct level and it ran fine.
Surprising it didn't explode.
I also have an XX and can't decide whether I should drain the carbs as it
wont be used before April 07 or just leave it and hope it wont gunge up the
jets. Any ideas?
S
"mb" wrote in message
> On Sun, 12 Nov 2006 02:41:09 -0800, mr p wrote:
>
>> The XX is sorted now, fresh oil and ready to go, it's going
>> to be nice and warm tomorrow .
>
> The bike, not the weather, I assume.
>
> --
> Mike FJ1200 >> Stay informed about: too much oil in blackbird |
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