Citroën id20 cabrio rims refurbishing

I balanced my rims myself last time on my balancing machine.

The reason is, that I can’t find a company in the neighborhood where that is still done.

Almost all tire companies now only work with rims that have a standard central hole in them for tensioning the rim.

I bought a new tire machine a few years ago, and with it the appropriate tensioning plates for both my ID20 and my Traction Avant 11BN.

When balancing, I found that on both the Traction and the ID, the rims are not all round and certainly not flat.

With the Traction I had quite a few available rims, so I chose the best ones and put new Michelin originals around them.

For the DS I have to do this again and that is scheduled for the 2022 refurbishment.

I had The Traction rims powder coated in cream white, the same color as the original rim color.  Except the spare, as shown above…

FLSTCI Harley-Davidson Heritage softail 2004

My 2004 fuel-injected HD Heritage is all original, except for the tyres. I decided to get Michelin’s instead of the HD whitewall ones, to get better grip during the rainy days..

The Heritage as I drive it presently

And- Next to the original saddle bags, I added an original Road King top case, also full leather.  Top case and saddle bags are easily detachable with original HD detach kits.  I added locks to all 3 cases.

The exhausts are also HD, but not as it came from the factory.  Due to noise regulations in Europe, I installed extra baffles, full-length in both pipes.

And- the original primary front sprocket has been changed to a bit larger one, so I can drive on the highway with less rev’s.

To get better front braking I exchanged the front brake disc for a larger one.

The lights all around are original HD LED.

Original toolbox was also an aftermarket add-on I installed.

I also exchanged the floorboards for a bit less wide ones, due to scraping the originals over the street now and then.  We have quite a lot of roundabouts in The Netherlands and the softail design in combination with my drive style caused unexpected contact between the floorboards and the concrete.  I did get the softail dampers (this 2004 version has 2 in parallel)  at the highest possible position so the rear swing is a lot stiffer and this gave some additional much needed height…

The bike now has 52.000 Km’s on it, and I wil be driving it a bit more the coming years.

Who am I

This website combines my previously created content into 1 website.

My name is Jan Griffioen.

Professionally, I deliver support to mid-sized and large companies on contractual- and ICT issues with my company


Due to my technical background I also develop, design, build and sell all kinds of technical solutions and products, primarily for individuals and small/mid-sized businesses.  This varies from special LED controller projects for restaurants to designing and producing hundreds of 3d-printed special coupling tubes for a goat milk farm.

This  site shows my technically based activities. Cheers!

Heraldic griffin. Coat of arms isolated on white background - 15500864

Griffin icon. Vector logo design template.


Indymill CNC with Estlcam and Arduino Mega

The Estlcam software is a very well working all-in one solution for CNC machines.

The software has the capability to work with many hardware providers of driver boards like f.i. a simple Arduino mega.

BUT- working with add-ons is limited.  The Ramps shield configuration is supported but not with individually homing of any axes.  However, if you let Estlcam program the firmware of the Arduino Mega, everything works out of the box.  BUT-you will need to connect all the wiring directly to the Mega.

In my search for the best working and most simple solution for driving the Indymill, this Estlcam configuration will be tested as well.

I am still searching for a shield that -in combination with Estlcam and an Arduino Mega or Due- will do everything I want/need like inclusion of 6-7 TMC2209 drivers on 24-48 Volts, dual axes  on X and Y,  dual endstops (high and low), mist/flood switches, LED WS2812 steering, emergency switches/power cuts, spindle RPM and on/off control, et cetera.

The MPCNC shield looks promising but there are others available, also.

The Tillboard shield is also nice,  however I am missing some driver positions for my needs.

One of the nice things of Estlcam is that it will also work with all of the parallel and USB CNC boards that are available like all Chinese clones.  I have some laying around and tried these, they all work well providing you will set it up correctly within Estlcam.

I recently (2021-11) bought an OpenCNC h/w kit from Timo Altholtmann (Germany)  that runs on 2 Arduino Mega mini’s  and is controlled by a.o.Estlcam.


Vialle D4 LPG evaporator exchanged with Lovato RGV090 evaporator

Due to some diificulty in getting the Vialle D4 evaporator to work properly with the Citroën ID20 and due to the fact that the Lovato RGV090 is made especially for carburetted cars like the ID20, I decided to put the Lovato in the car, and get the Vialle out.

I had previously already overhauled the Vialle D4 with a so-called ‘kit’.  In this kit, all diapragms, the needle and the rubbers were provided.  But, after the overhaul, it never really worked well.

The reason for not working well has to do with a number of things after a lot of research.  First of all, the evaporator is actually far too big for the required power of the engine.  The engine produces a maximum of 90 hp and the Vialle evaporator is then actually still in the lower range.  The result is that everything works but that picking up based on the demand for LPG doesn’t work smoothly.  You notice that with careful acceleration.  You have to push the throttle quite a lot to have effect.

No problem on the motorway, but it is difficult when driving quietly in the city or off the highway.


The Vialle D4 does not have a vacuum connection, but shuts off and on with an electric coil. (the one top-right of the above phote) The D4 can therefore also be used for ‘single point injection systems’.

But, I only want the LPG installation to be used as old school self-suctioned carburetted LPG installation.

So, end of February 2020 I put in a factory new Lovato RGV090 which basically is a vacuum controlled evaporator with an electric choke coil.


Lovato RGV090


On the Lovato evaporator only 1 setting is possible, and that is about the point where the evaporator starts giving LPG on command (and how much, given a specific suction).  The big plastic screw that does this presses on a spring that makes the diaphragm in the evaporator move more difficult when the screw is turned in (clockwise) and makes the diaphragm move easier on the suction of the air inlet when turned out.  This basically means that more LPG goes to the engine when the screw gets turned out more.

This is the setting that you should set to 1.5 % CO at 800-1000 RPM, the so-called stationary setting.

If you set this, the  2nd setting you must make is the throughput screw that is placed anywhere in the path between the carburettor and the evaporator.  Set this screw midway when you are setting the CO to 1.5 at stationary RPM.

After the stationary setting is done, try how the engine reacts to pushing the throttle.  If it does not react fast and firm enough, turn the throughput screw a bit out until the reaction at pushing the throttle is comparable to the situation on petrol.

Then, test drive the car and turn the throughput screw back a little every time until you lose power at full throttle. Then , turn this screw 0,25 to 0,5 turn open and you’re done!

PS: The one screw on the evaporator is NOT a stationary screw.  Although it does affect stationary RPM due to more/less LPG, you can only set it right when you use a CO meter,  Otherwise, you can ruïn your car due to too lean settings.

If you want to do it completely correct, the CO at 3000 RPM should be checked and set to 2.5- max 4 %.  The balance between stationary RPM and RPM 3000 is a difficult one, but make sure that you will NEVER get below the minimum values of 1.5% CO at stationary and 2.5 % CO at 3000 RPM!  And- make sure you use both the screws in adjusting the CO%’s.  Especially at 3000 RPM, you must adjust the screw that is in the LPG line.

If you want a better installation, get a system that utilizes a CO plug that reads the exhaust values of CO to regulate the quantity of supplied LPG.  Such systems are available from Lovato and Vialle, both with injected AND carburetted LPG systems.  It does require some additions to your car’s exhaust but that is all very well possible, should you want it.



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