Bol D'Or - New Project

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hugomez
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Re: Bol D'Or - New Project

Post by hugomez » Tue Jan 10, 2017 3:55 pm

I see you guys also like it as much as to me. I would say with this the Bol D'Or is finally completed. :D
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Lasse
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Re: Bol D'Or - New Project

Post by Lasse » Wed Jan 11, 2017 1:33 pm

Hm. - not completely finished...
Dont make me wrong - the new seats position is much better than before!

But why not take the last tiny final steps?
Because the seat is not parallel with the ground now.
It should be lowered approx. 3-4 cm. at the front - and in the back, the white painted metal bracket sticking down, from underneath the seat, should be painted Gold.
Nitpicking? - maybe...

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Re: Bol D'Or - New Project

Post by hugomez » Wed Jan 11, 2017 2:38 pm

HI Lasse, thanks for your suggestion. I see you can be even more picky than me :lol: :lol:

The front part only can be move horizontally, but there is no way to lower the seat at the front part to hide the white metal. Even moving the seat more to the front (or back) the metal you see follow it.

I see your point about painting the metal gold instead white, but it is part of the seat assembling, so under my point of view it should follow the color of the seat. If the seat would be black, I would have those metals black. I understand that at this point this is a matter of taste, I think white is fine.

Nevertheless, the scooter as you know is very small, if you are standing near it you do not see those metal, you really have to bend down to be able to see the metal coming out. When I took the photos I was on my knees, taking it from a very low angle.

Under my point of view, the Bol D'Or is finished :D

Thanks
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Re: Bol D'Or - New Project

Post by Lasse » Wed Jan 11, 2017 6:20 pm

I see your point about paint, Hugo.
But what I also ment, was just to LOWER the front part of the seat slightly, to make it perfectly horisontal (which it isnt now...)

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Re: Bol D'Or - New Project

Post by hugomez » Wed Jan 11, 2017 9:43 pm

Hi Lasse,

I understand your point. However it is not possible to low the seat from the front of it, and the rear part of the seat is not at the higher possible position. I could move it lower, the adjustment white metal part allow me to do it, but them it would be even less horizontal.

In the next three images I have draw lines following the design "lines" of the scooter, so we can compare the seat position following that lines.

Following them we can see that no one would be totally correct with the "lines" of the scooter

01: Lines following the front section of the body:
As we can see following these lines, the back part of the seat is lower than the front, so is not following the lines. To make it correct with this lines the rear of the seat should be slightly higher, or the front of the seat slightly lower (as you suggested), then it would be straight and align with the front body section.
Blue-lines-front-section-reference.jpg
Blue-lines-front-section-reference.jpg (86.47 KiB) Viewed 11950 times
02: Lines following the rear section of the body:
As we can see here, if the seat would follow the scooter lines of the rear section, the rear of the seat should be slightly lower, however, even if it would match with the "scooter rear body lines", it would not be correct because is not logical to have the rear part of the seat too low vs the front, so lowering the rear of the seat more to match that would not be good idea.
Red-lines-rear-section-reference.jpg
Red-lines-rear-section-reference.jpg (88.16 KiB) Viewed 11950 times
03: Lines following the complete scooter design line:
These lines show the design line of the scooter from front to back. The seat do not match the lines either, but as we can see from the front to the back the lines goes down, for that reason the seat doesn't look bad (under my point of view) if the rear is slightly lower that the front of it, as the lines of the complete scooter does.
For that reason I am fine with the seat in that position, it is somehow following the lines of the scooter from front to back.
Another thing to have in consideration is that the seat has two "bumps" that shape the butt. If I am sitting "relax" using the front of the seat, it has this little shape that make the feeling that you are not falling back. And if I am in a racing position, "lie down", my butt would rest at the back of the seat, and still have the feeling I am not falling back because the second "bump"the seat has on it.
Long story short, at the end of the day I like the new position, I think is kind of in line with the complete scooter.
Green-lines-all-scooter-reference.jpg
Green-lines-all-scooter-reference.jpg (86.95 KiB) Viewed 11950 times
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Lasse
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Re: Bol D'Or - New Project

Post by Lasse » Wed Jan 11, 2017 10:43 pm

Hugo, I would personally prefer your suggestion no. 1.
As I, (as you know) have a acquired taste - ha hem, I would only be satisfied, if the front end of the seat, could be lowered a couple of centimeters - to be almost horisontal to the footboards!
The footboards, to my eye, defines the basics of "the line of the scooter".

But, I admit, its almost hopeless to "blend" a "twinseat" into the lines of this RUMI model scooter, because originally it was constructed to be visually pleasing, mounted with two single seats...
Dont be angry.

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Re: Bol D'Or - New Project

Post by hugomez » Wed Jan 11, 2017 11:00 pm

I absolutely respect your point of view Lasse, and of course I am not angry, I do not know what I could be, you are just giving me your opinion that in many cases I respect and helped me to improve or solve problems I had in the past.

Believe me that if I would not be completely happy with the seat position, I would change it until I would be completely satisfied, however I really like the position now, I think visually fit and at the same time would keep me on the scooter properly either if I am sitting in front, or if I am lie down resting my "butt" in the back.

I had a look online of different Rumi scooters with buddy seat, the majority has the seat either with the rear higher or all the way horizontal, but I found several of them in the same way as mine as well.

At this point is just a matter of taste.

I love it :D
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Re: Bol D'Or - New Project

Post by Lasse » Thu Jan 12, 2017 9:39 am

That I must give you, because I never saw the vehicle "in the flesh".
Obviously, things would look differently, as you said, when looking at the scooter, standing near to it!
I am sure I would change my mind, standing at the side, or over the vehicle.

I guess the winter months must feel "endless to you" - since you never really got to drive the thing, following your perfect "re-creation" of it, not to speak of your lenghty struggle to get the tuned motor to run properly.
I wish you many happy moments with your rare Bol´Dor!

Your humble servant,
Lasse.

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Re: Bol D'Or - New Project

Post by hugomez » Thu Jan 12, 2017 10:51 am

Your humble servant???, I think that is too much Lasse :lol: :lol: :lol:

Indeed looking forward to be able to ride it properly around. The winter will pass very fast, so in a blink of eyes I will enjoying it.
My little Formichino here: http://www.formichino.com/pictures1.html

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Re: Bol D'Or - New Project

Post by hugomez » Sun Apr 02, 2017 7:14 pm

Hi,

Finally today I tested the Bol D'Or properly. I made around 35/40 kilometres with it and very happy. The carburation is fine, the engine is going nice and smooth. The position to ride it is not very comfortable, actually it is quite uncomfortable for a person as tall as me (1 m 93cm), however I enjoyed the ride very much.
During the ride I could feel pain in my left wrist, because grabbing the clutch lever is such an uncomfortable position, now that I am at home the pain is gone.

Here one photo of todays ride :D
Moto-Rumi-Bol-D'Or-Amsterdam-01.jpg
Moto-Rumi-Bol-D'Or-Amsterdam-01.jpg (292.32 KiB) Viewed 8505 times
Moto-Rumi-Bol-D'Or-Amsterdam-02.jpg
Moto-Rumi-Bol-D'Or-Amsterdam-02.jpg (211.17 KiB) Viewed 8488 times

When I was testing the bike during the last winter trying to fix the cylinder problem, I found out that the previous clutch and brake levers (that are hollow at the interior side (not visible at these photos) pinch my hand against the grip when I grab it, so I got a another pair that are completely round (not hollow at the interior side), and now the pinch problem is solved. Also now look much nicer, the clamp with the screw now is attached nicer than the old ones (inside the blue cycles in the photo), so I got two improvements in one :)

Here the OLD levers:
Moto-Rumi-Bol-D'Or-OLD-clutch-brake-lever.jpg
Moto-Rumi-Bol-D'Or-OLD-clutch-brake-lever.jpg (100.17 KiB) Viewed 8505 times

And here the NEW once:
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-01.jpg
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-01.jpg (59.25 KiB) Viewed 8505 times
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-02.jpg
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-02.jpg (49.84 KiB) Viewed 8505 times
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-03.jpg
Moto-Rumi-Bol-D'Or-New-clutch-brake-lever-03.jpg (58.91 KiB) Viewed 8505 times
Very happy day finally riding it properly.
My little Formichino here: http://www.formichino.com/pictures1.html

RUMISTI
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Re: Bol D'Or - New Project

Post by RUMISTI » Tue Apr 04, 2017 6:09 pm

Hi Hugo,
I am glad to read that your RUMI now works well. Wish lots of fun with it.
Rudolf

hugomez
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Re: Bol D'Or - New Project

Post by hugomez » Thu Apr 06, 2017 10:24 am

RUMISTI wrote:Hi Hugo,
I am glad to read that your RUMI now works well. Wish lots of fun with it.
Rudolf
Thank you Rudolf, it was definitely time to finally be able to enjoy the scooter.

:D
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Rumi's
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Re: Bol D'Or - New Project

Post by Rumi's » Thu Apr 06, 2017 2:05 pm

Hello Hugo
Great news!!!!!!!!!!!!
Congratulations!
To enjoy!!!!
Regards,

Juan Nizio
from Argentina

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Re: Bol D'Or - New Project

Post by hugomez » Mon Sep 17, 2018 12:15 pm

Hi,

The Bol D'Or is still (and will be for some time) in running-in period, so I am going easy with it, keeping the revs low, however the few times I gave a little bit more throttle in first gear, I have noticed that the clutch slip.

This only happen in first gear and in high revs.

I must say that the performances of this engine is much better that in any other Rumi I have, I mean, I notice much more power on this engine than in the rest.

During winter I will replace the clutch disks to a brand new set, and I wonder if somebody can recommend me where to find a bit stronger clutch springs, that will help to get rid of the slipping problem at high revs in first gear.

Thanks in advance.
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Re: Bol D'Or - New Project

Post by hugomez » Thu Oct 18, 2018 7:13 pm

Hi,

Luckily I received already a set of 6 brand new reinforced springs for Moto Rumi. They are slightly thicker, larger and stronger as the standard once.

Not in a hurry to assemble them in the Bol D'Or, the winter is long, for sure I will find a good moment in a rainy day to do it. :D

Hopefully them will fix the slipping clutch at the first gear.
New-Clutch-spring-reinforced-for-Moto-Rumi-.jpg
New-Clutch-spring-reinforced-for-Moto-Rumi-.jpg (56.96 KiB) Viewed 5037 times
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Re: Bol D'Or - New Project

Post by hugomez » Thu Sep 26, 2019 10:57 am

Hi All,

There is something that was bothering me long time ago, and now that I had time, I am going to try to solve it.

The engine of the Bol D'Or drop a bit of oil, I would say around one drop a days. Under my point of view, that is a lot, so I have to be removing the oil of the floor every now and then.

Today I remove the ignition system and the covers of the three bearings because I suspect it is coming from that area, keeping in mind from where I see the oil was dropping to the floor, however maybe I am wrong.

Last time I closed the engine, I used at the cover behind the sprocket, the non hardening compound "Wellseal". I also used that same compound at the middle bearing, of course using the paper gasket too. At the cover of the bearing at the ignition, I used a much stronger compound, "ThreeBond 1104 Neo" that became a hard rubber once is dry, it is specific for places that have been a bit worn, sealing it properly.

Honestly after removing all the parts (Sprocket, ignition system and covers), now I am not that sure that the oil was able to come out from there, however I wonder if any of you know if is possible the oil to come out by the bolt that I highlight in the red circle at the second photo below.

Have you ever seen oil coming out from there?

Last thing I would like to mention is that in case the oil was coming out from the covers of the bearings, is it good idea to make myself the gasket papers using thicker gasket paper instead using the standard once I have? (see last photo)

Any advise is more than welcome :)

Moto-Rumi-Bol-D'Or-engine-coverr-bearings-01.jpg
Moto-Rumi-Bol-D'Or-engine-coverr-bearings-01.jpg (83.66 KiB) Viewed 616 times
Moto-Rumi-Bol-D'Or-engine-coverr-bearings-02.jpg
Moto-Rumi-Bol-D'Or-engine-coverr-bearings-02.jpg (63.57 KiB) Viewed 616 times
Moto-Rumi-paper-gasket-bearing-covers.jpg
Moto-Rumi-paper-gasket-bearing-covers.jpg (41.4 KiB) Viewed 616 times
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greasy-fingers
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Re: Bol D'Or - New Project

Post by greasy-fingers » Thu Sep 26, 2019 12:22 pm

Hi Hugo, I have not had oil leak from that position on any of my engines, the usual places if not from the 3 ignition side plates you have sltesdy looked at are 1 the clutch arm, 2 the gear change lever, 3 the kickstart lever, 4 the oil level screw. Also be carefully not to use gaskets that are very thick on the, ignition side plates as the two rear ones can affect gear shaft position/selection. Graham.

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Re: Bol D'Or - New Project

Post by hugomez » Thu Sep 26, 2019 4:30 pm

Hi Graham,

Thanks for your reply.

This engine don't drop oil from "Clutch arm", "Gear change lever", "Kickstart lever" or "Oil lever screw". Because of the place where it was falling at the floor, and because of the area where I could see some remaining oil on the scooter, I suspected that the place should be around the 3 ignition side plate, but once removed the cover and the rest of the elements, I was not able to see exactly what could be.

As you can see in my previous reply, I removed all three plates and clean well the area.

I had a call with Ian and he asked me to put the place at the crankshaft/ignition to see if there was a gap between the plate and the engine caused by the plate touching the bearing. With a gauge I could confirm that yes, there was a gap that should not be if the bearing would have been located slightly more inside the engine. After some measurements we decided to use a paper gasket of 0.80 to make the new gasket, instead using the 0.35 thickness gasket I have from the set available for Rumi engines.

I am not sure if the cause of the leak was that, but certainly was a gap that maybe the previous gasket compound i used was not able to hold the oil.

Now is everything close again and the scooter sitting in the living room, so in a few days max I should now if the problem is solved or not.

You mentioned that adding a thicker gasket to that plate can be a problem because can affect the gear shaft position, however I do not understand the relation because that plate at the crankshaft/ignition and the gear shaft that is way back in the engine. Of course if you say so is because in one way or another must be a relation, but at this moment I can not see it, please help me to understand.

Greets,
Hugo
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greasy-fingers
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Re: Bol D'Or - New Project

Post by greasy-fingers » Thu Sep 26, 2019 6:53 pm

Hi Hugo, what I mean is that the input and output gear shafts rely on the end plates and the large ring to locate the bearing on the ignition end, without the end plates in position the gearshafts rely on the grip of the casing halves to stop the shafts from moving towards the ignition side, ideally the endplates will push the bearings up against the bearing retaining rings to stop this from happening, many older rumi engines jump out of gear especially first, so it is important that the selecting dogs between gears locate as closely as practical whilst still allowing selection, the end plates come with various depth intrusions to allow perfect bearing location. Graham.

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Re: Bol D'Or - New Project

Post by RF125 » Thu Sep 26, 2019 6:59 pm

Hi Hugo, i agree with Graham, but not at all, because by the three ignition holes, can't leak, but yes it can do it, by the hole with stopper like your highlighted picture. Look there.....
Attachments
Moto-Rumi-Bol-D'Or-engine-coverr-bearings-02.jpg
Moto-Rumi-Bol-D'Or-engine-coverr-bearings-02.jpg (63.39 KiB) Viewed 588 times

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Re: Bol D'Or - New Project

Post by hugomez » Thu Sep 26, 2019 8:16 pm

Hi Graham and Claudio,

Graham, I was confused before thinking that you were talking about the cover plate between the bearing of the crankshaft and the ignition plate, because in my mind that was the only one where I was going to add (and I did) a thicker gasket paper, I could not understand why that gasket paper could affect the gear shaft position/selector. :D

Now I understand that you were talking about not adding a thicker paper at the plate that is between the shaft of the gear selector and the sprocket. In that place and also at the middle plate I add new gasket but the once that are coming with the typical Rumi gasket sets, so no problem, the thicker gasket have been added only in the very front plate.

Claudio, good to know (and bad at the same time), that is possible to get a leak from there as i originally suspected. If in a few days I get oil dropping of the engine, all my suspicious will be to that place, hopefully the problem was not that and now everything is solved, time will say.

Thanks you both ;)
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Re: Bol D'Or - New Project

Post by hugomez » Tue Oct 08, 2019 3:24 pm

Hi,

10 days since I did the fix and not a single drop of oil at the floor or at the bottom of the engine, so I would say the problem is now solved :D

Greets,
Hugo
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Re: Bol D'Or - New Project

Post by RF125 » Tue Oct 08, 2019 4:47 pm

Congratulations, but, what was the problem???

Regards;

Claudio...

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Re: Bol D'Or - New Project

Post by hugomez » Tue Oct 08, 2019 4:52 pm

RF125 wrote:
Tue Oct 08, 2019 4:47 pm
Congratulations, but, what was the problem???

Regards;

Claudio...
Hi Claudio,

The problem was the little oil leak I had since long time ago (I explained it on Thu Sep 26, 2019 10:57 am, and you replied about it). I was annoyed with that little leak and now is solved.
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Re: Bol D'Or - New Project

Post by RF125 » Tue Oct 08, 2019 7:17 pm

Yes Hugo, I expressed myself wrong, the question was not, what was the problem? It must had been, what was the reason for the leak?

Regards

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Re: Bol D'Or - New Project

Post by hugomez » Tue Oct 08, 2019 10:50 pm

RF125 wrote:
Tue Oct 08, 2019 7:17 pm
Yes Hugo, I expressed myself wrong, the question was not, what was the problem? It must had been, what was the reason for the leak?
Regards
Ian mentioned to me that perhaps the problem was caused by the cover touching the bearing between the crankshaft and the ignition plate. The standard paper gasket was not thick enough to avoid an oil leak by there.

I removed the three covers (just in case the leak was from any of the others too) and add new gasket papers at the three of them. Only the one at the ignition was thicker than usual, the other two were standard paper gasket thickness. Now no oil is coming out anymore.

At this moment I can't 100% confirm which one of the three was causing the problem, but I can confirm that while I was checking all, Ian was right about the gap at the cover between the bearing and the ignition plate, so I suspect that this was actually the source of the problem.
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