Author Topic: Bruce Macbeth Engine, European Version  (Read 29506 times)

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #375 on: January 05, 2021, 03:29:22 PM »
Hi Kirk, thanks for popping in.


The electricians have been here for a short visit.
The switch panel is done, color is missing only.
 
Kind Regards
Achim

Offline Roger B

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Re: Bruce Macbeth Engine, European Version
« Reply #376 on: January 05, 2021, 08:32:21 PM »
Excellent progress  :praise2:  :praise2:  :wine1: I have found I can run my engines off load with just the radiator but if I start loading them I need the fan.
Best regards

Roger

Offline Admiral_dk

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Re: Bruce Macbeth Engine, European Version
« Reply #377 on: January 05, 2021, 08:44:29 PM »
Quote
I have found I can run my engines off load with just the radiator but if I start loading them I need the fan.

Excellent point Roger - and I forgot that on full size plants there are also many factors that decide how simple of complex all this need to be - like height difference between radiator and cylinder heads, natural airflow, etc.

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #378 on: January 06, 2021, 06:52:11 AM »
Excellent progress  :praise2: :praise2: :wine1: I have found I can run my engines off load with just the radiator but if I start loading them I need the fan.


Hi Roger, thanks for watching.
Currently there are no plans to drive anything with the BME, just watching it idle, if it will run ever.
Kind Regards
Achim

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #379 on: January 14, 2021, 01:20:07 PM »
Hi everybody, the next attempt was done to solder the covers into the cylinder heads properly.
This time a bit more solder was given to the parts.
Preheating as always with a Chinese outdoor cooker and later an additional flame from a torch.
The result was fine for me.
The final pressure test with all 4 heads was also fine so far.
Kind Regards
Achim

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #380 on: February 11, 2021, 11:37:19 AM »
Hi everybody, retirement is not easy. Still much more projects than time.


The progress with the cylinder heads made some time ago already.
I am happy with the soldering now.
Some holes for water, inlet, outlet and fixation has been made by the computer.
My extra cylinder, the #0 aka set up part, has been very helpful for this job as a fixture.
« Last Edit: February 11, 2021, 11:43:10 AM by fumopuc »
Kind Regards
Achim

Offline Admiral_dk

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Re: Bruce Macbeth Engine, European Version
« Reply #381 on: February 11, 2021, 04:43:58 PM »
Nice to see you back here Achim  :cheers:

I can't say I'm surprised about your lack of free time after retirement - it has happened to all I know ....  ;)

Offline Don1966

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Re: Bruce Macbeth Engine, European Version
« Reply #382 on: February 11, 2021, 08:04:23 PM »
Every update is an archivement and Enhances the finished engine love the progress achim..... :Love:


 :cheers:
Don

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #383 on: February 12, 2021, 03:13:22 PM »
Per, Don thanks for popping in again.
Go to know that you are still following along.


As mentioned in the previous post, the hole pattern was predrilled by the CNC but the final drilling was done by me.
The computer did a perfect job with out any failure, me not.
A boo-boo, one hole was drilled wrong size, so a bush was made and fixed with Loctite 348.
Next thing that did not work very well.
It is no good idea to do a manual drilling with short VHM drill bits, specially made for CNC usage.
There has never been a problem to "ram" a 1,6 mm drill bit by CNC into the material, but if you drill manually and there is a hint of a side force you will need immediately a new one.
So the remaining 1,6 mm holes has been done with a conventional drill bit again.
Kind Regards
Achim

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #384 on: February 13, 2021, 08:40:15 AM »
Hi everybody,
the necessary plugs in the not necessary part of the bore for coolant are in now.
The plotter has been busy to cut all gaskets around the cylinder heads.
Kind Regards
Achim

Offline Dave Otto

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Re: Bruce Macbeth Engine, European Version
« Reply #385 on: February 13, 2021, 06:02:52 PM »
Great progress Achim!
I'm still following along here.

Dave

Offline crueby

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Re: Bruce Macbeth Engine, European Version
« Reply #386 on: February 13, 2021, 06:51:49 PM »
What do you use for the gaskets? Looks like Viton sheet?

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #387 on: February 13, 2021, 08:15:11 PM »
What do you use for the gaskets? Looks like Viton sheet?


Hi Chris, it is called ABIL N from Elring
https://www.elring.com/en/products/gasket-materials/
Kind Regards
Achim

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #388 on: February 14, 2021, 07:16:54 AM »
Great progress Achim!
I'm still following along here.

Dave


Hi Dave, good to know that you are still there.
Kind Regards
Achim

Offline fumopuc

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Re: Bruce Macbeth Engine, European Version
« Reply #389 on: February 14, 2021, 02:35:44 PM »
Hi everybody,
the inlet manifold was the next part to make.
By luck I have found a very long drill bit in my toolbox.
Hole pattern again drilled by the computer.
A 2 mm pin should help to fix the carb adapter for soft soldering.
Kind Regards
Achim