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#Post#: 137--------------------------------------------------
Inlet valve oil line
By: nick949 Date: November 18, 2014, 5:00 pm
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Hi Folks,
Shortly after getting my NF I bought and installed a Teo
Lamers oil line to help with the inlet valve oiling issue.
After its recent top end rebuild my bike is all back together,
but I have a nagging doubt about whether I installed the oil
line the right way around.
Can anyone remember whether the metering valve (looks like a
main jet to me) goes at the oil supply side (ie. right side of
the engine), or at the junction directly above the inlet valve?
Duh....
Nick
#Post#: 138--------------------------------------------------
Re: Inlet valve oil line
By: banquo Date: November 19, 2014, 3:10 am
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There's a photo on here Nick? You have to click on it to select
the right one - it's not the one that shows on the page.
HTML http://www.tlm.nl/webshop/en/oil-pipe-modified-falcone-nf-101536010010-moto-guzzi
HTML http://www.tlm.nl/webshop/en/oil-pipe-modified-falcone-nf-101536010010-moto-guzzi
And one of Paul Friday's pix from the archive site: extra
plumbing for an oil filter (?) but does that help at all?
[URL=
HTML http://s21.photobucket.com/user/bancquo/media/Classic%20Bikes/Falcone%20Forum%20Stuff/Paul%20Friday%20uploads/oilline_zps16dcb388.jpg.html][IMG]http://i21.photobucket.com/albums/b298/bancquo/Classic%20Bikes/Falcone%20Forum%20Stuff/Paul%20Friday%20uploads/oilline_zps16dcb388.jpg[/img][/URL]
#Post#: 170--------------------------------------------------
Re: Inlet valve oil line
By: nick949 Date: November 19, 2014, 6:25 am
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Thanks Jake. The routing isn't the problem, it's which end of
the extra pipe gets the nozzle. Fortunately, my son used logic
to figure it out, so now I'm happy. Now all I need is a day
with ice free roads to properly test it out. Perhaps by
April............... ::(
Nick
#Post#: 241--------------------------------------------------
Re: Inlet valve oil line
By: Jacks the lad Date: December 2, 2014, 9:19 am
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I made my own, if anyone is interested I will post how I did it.
#Post#: 242--------------------------------------------------
Re: Inlet valve oil line
By: nick949 Date: December 2, 2014, 9:31 am
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jack - the one I got from Teo Lamers had some kind of metering
valve (actually it looks like a carb main jet) in the line. I
assume it's there so that only a limited amount of oil is
allowed to go to the inlet valve. I suppose the thinking is
that if it's an open pipe, it may redirect too much of the oil
supply and diminish the supply to the exhaust valve and rockers.
Yours looks like a great job - just as slick as the Teo Lamers
one.
Nick
#Post#: 243--------------------------------------------------
Re: Inlet valve oil line
By: Jacks the lad Date: December 2, 2014, 9:45 am
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Yes Nick you are right, it's a Dell'Orto carburettor number 60
jet. and you are also right in thinking that it's there to
prevent too much oil going to the top of the engine. photo shows
it in the top banjo bolt.
#Post#: 244--------------------------------------------------
Re: Inlet valve oil line
By: nick949 Date: December 2, 2014, 10:00 am
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So it's in the top banjo joint above the inlet valve? Darn, now
I have to take mine off to check I got it the right way around
as I mixed up the ends while my top-end was in for repairs. Oh
well, I have to do the valve lash again anyway after re-torquing
the head.
#Post#: 245--------------------------------------------------
Re: Inlet valve oil line
By: Jacks the lad Date: December 2, 2014, 10:27 am
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You have got me wondering now, but I'm fairly suer that's the
right place ( if someone knows better I will stand corrected,
but it seems the right place to me ). By the way my banjos are
12mm at one end and 8mm at the other so I at least can't mix
them up.
#Post#: 246--------------------------------------------------
Re: Inlet valve oil line
By: banquo Date: December 2, 2014, 10:51 am
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Maybe I'm being dumb here (and thanks for the photos JtL and
yes, please let us know how you made it) but if the restrictor
is anywhere in the pipe, it will restrict the flow by same
amount, so it shouldn't matter if it's at the end or the start
of the pipe? The pressure drop, and hence the flow across the
restrictor, will be the same whether it's at the start the
middle or at the end, ignoring pressure drop in the large pipe,
which we can afford to do, as it's so much larger than the
jet...
If I've picked this up wrong, feel free to slap me about the
face with a wet fish... ;D
#Post#: 247--------------------------------------------------
Re: Inlet valve oil line
By: Jacks the lad Date: December 2, 2014, 1:09 pm
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Having asked about an extra oil feed for the valve gear, and
then seeing that a ready made-up version was going to cost 101
Euro. I decided to make my own. Here’s how I did it, and the
mistakes I made (so that you won't make them as well).
First I acquired a 8mm and a12mm single ended banjo union and
matching bolt. These I took to my local hydraulic pipe service
to have about 250mm
wire braided oil line crimped on. Next remove the 16mm blanking
plug from the rocker box, drill and tap this to suit the 8mm
banjo bolt. Note: the normal 8mm bolt has a pitch of 1.25mm,
whereas the banjo was 1mm, so the 8mm tap that you might buy at
your local hardware shop is probably not going to do. Luckily I
had a 8 x 1 to hand. However to prevent too much oil being
delivered to the top of the engine some form of restriction
needs to be fitted to the system. In the professional made
version this is achieved by fitting a number 60 Dell'Orto
jet. These have a 6mm x 1 thread and happily this is a standard
size, so the 8mm banjo bolt was tapped this size and the jet
screwed into it's end. The OD of the jet was somewhat larger
than 8mm so once fitted in the bolt it was skimmed down to size.
On the right hand side of the engine there is a “U” shaped pipe
held on with 2 “Acorn” 12mm nuts. Remove the top one of these
and replace with a short adaptor made from 19mm hexagon, about
30mm long, drilled and tapped to suit. Now this is where I went
wrong, so pay attention. The banjo bolt as supplied was 12 x 1.5
(standard bolts are 1.75 pitch) As I had a 1.5 tap I thought all
would be well, it wasn't. The engine turned out to be 12 x 1.25.
So I had to make a new adaptor and banjo bolt. To do this I
purchased a tap and die set off E-bay at a cost a less than
£7.00, possibly not the best quality, but for what was probably
going to be a single use I didn't think it mattered much. With
the new adaptor in place the pipe was fitted, not forgetting new
sealing washers and the job was done. The photos my previous
posts show the completed set up.
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