Bruce Macbeth Engine, European Version

[Vixen]

Per,

We can only hope that our politicians will grow up and act with responsibility, once again. Perhaps, one day?

Mike

[crueby]

Per,

We can only hope that our politicians will grow up and act with responsibility, once again. Perhaps, one day?

Mike

Hope, maybe.  Expect? Nah.

[Craig DeShong]

 
Don

I’m with Don, ‘pretty work’ as a mentor of mine used to say.

[fumopuc]

Unfortunately the fallout from Brexit had made importing stuff from Germany much more expensive. Suddenly many suppliers and their shipping companies are adding special surcharges and then there can be import duty and more VAT taxes to pay.

That also goes the other way Mike. I had to order some tools for my big bike from the UK, and I had to pay for two shipments, even though the British company promises that everything on the same order goes out on one shipment charge and in one package .... it was shipped a in two parcels with minutes in between  .... and just to make it worse - I had to pay Customs handling fees twice for that reason  .... and all that meant several weeks delay in Customs 
So absolutely NO reason to EVER buy British again .... Shame as I had good experiences before Brexit ....

Thank you for your reply Achim - I do understand your argument.

Unfortunately I have made a similar experience.
Lead time, extra freight coast and custom charges have completely stopped any purchase in the U.K. now.
It´s a pity.

[fumopuc]

Hi everybody, distributor is one of my next challenges.
I have purchased a so called SATRA 4 cylinder distributor from Roy at S/S Ignition, cap and base.
Some time ago a CAD model was done to the see the proportions in the assembly.
In my eyes it looks horrible.
So a design for an other base was created, similar to that what Doug and Jeff did with their models.
This design gives now the spec for the right hand shaft side of the cam shaft also.

[Roger B]

Achim, an interesting distributor build    What materials are you using?

Mike, if you can follow this website I can probably order some for you.

https://holzapfeldampf.ch/product/muttern-modellbau-stahl-schwarz/

Switzerland is also not in the EU so it may be easier     

[Vixen]

Mike, if you can follow this website I can probably order some for you.

https://holzapfeldampf.ch/product/muttern-modellbau-stahl-schwarz/

Roger, Thanks for your generous offer.

The small nut sizes from your Holzapfeldampf site offer different nut proportions of height and width to those from Achim's Knupfner site. I will have to decide which would suit the Mercedes engine best.

It will be some time before I actually need them, so maybe the politicians will have stopped quarreling among themselves by then and start to act with reason and logic. Otherwise everyone will be the looser.

Thanks

Mike

[fumopuc]

Achim, an interesting distributor build  What materials are you using?

Mike, if you can follow this website I can probably order some for you.

https://holzapfeldampf.ch/product/muttern-modellbau-stahl-schwarz/

Switzerland is also not in the EU so it may be easier 

Hi Roger,
there is a piece of black POM under the bench, I will try this first.

[fumopuc]

Hi everybody,
after the final definition of the cam shaft and distributor has been more clear, no excuses any more to do the finish around the cylinder heads now.
First there was a finishing job at the cam shaft brackets to do.
A small corner radius which I have made by conventional milling.
Another bracket was missing, the upper bearing of the upright shaft.
Also done by a CNC milling operation, followed by some conventional machining/reaming.

[fumopuc]

The cam shaft gear is not prepared yet to fit to the shaft, so I made a quick and dirty dummy to check any clearance to the bracket.
I have been happy with the result, so I could make an appointment with the Anodizing Company in the next village for all these so far made brackets.

[fumopuc]

Hi everybody, the next typical CNC required part has been attacked.
Rockers, 8 for the engine, 2 for the set up cylinder head and another 2 in spare was my calculation.
There was the possibility to cut them all out of a plate by CNC or to do a conventional preparation with a kind of pre machined raw part.
My decision was to use the last option, with my small band saw easy to do.
First picture the CAD model, parts will be made by aluminium AW 7075.
The preparation of the 12 small pieces was easily done in a very short time with the band saw.
The set up on the conventional mill could mostly clamp 2 pieces for one go and the cuboid has had already the final dimensions of the rocker.
Than the start of the CNC operation, first drilling the holes, second the pockets on one side followed by a flip over and the other side pocket was done also.

[fumopuc]

Hi everybody, rockers the next step.
Reaming of all holes with the conventional mill.
An available fixture was modified to suite for the next CNC machining, the outer contour of all 12 pieces.
The same fixture could be used for the roller slot at each side of the rocker.
The dark part was an attempt with the barrel stone machine, but the compound has given a very dark coated surface and I am not sure if the anodizing company will like it.
So a manual deburing with the Dremel was used to get the last finish.

[fumopuc]

Hi everybody
the rockers are out for a black anodizing.
A good point to make the roller and other accessories for the valve train.
And a replacement for a #1 M 1,6 mm tap will be necessary.

[fumopuc]

...and some more pictures.
The cam shaft bracket are back from black anodizing already.

[Vixen]

Hello Achim,

Those bold, contrasting, colours will make your engine outstanding 

Mike