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Project: Break in Dutch machine

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Project: Break in Dutch machine

Old 04-21-2016, 07:32 AM
  #61  
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Great workmanship as always!

And on track results?
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Old 04-21-2016, 08:11 AM
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Thanks!

I have not been on the track yet. I hope to do it this or the next weekend because within 14 days the 1st national is there. Richard has allready written in his topic about his and some other experiences and they are good.
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Old 04-21-2016, 02:43 PM
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Guess we are going to find out at the Nationals how much good the break-in is, if not performance (obviously) at least the commodity of having someone doing break-in for us.
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Old 04-22-2016, 12:27 AM
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Roelof, have you noticed any differencies in the results if you compare your and Richards method. (Horizontal vs vertical assembly)

I am still thinking about making my own device...

-X-
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Old 04-22-2016, 12:58 AM
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There is no difference, with both ways an open backplate is needed to keep the rod on its place alhough with the horizontal placement it seems not needed but you do not want to have the rod going its own way.

His OS as a nice compare came out in the same way as my OS.
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Old 04-22-2016, 03:33 AM
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OK, Nice

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Old 04-22-2016, 06:04 PM
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Awesome job!

Can you share RPMS, time and type of oil?

It looks like 100revs per min ...

I can give big OK for your job!

ps: still no time for my own device and engines

Originally Posted by Roelof View Post

A small movie:

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


The one thing I have to do is add some screws to mount the controlpanel, 4 bolts for the cap ant tighten some screws.
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Old 04-23-2016, 03:29 AM
  #68  
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The used motor on this one:
http://www.conrad.com/ce/en/product/...tor-Modelcraft
Powered on a 13.8 volt power supply It will run about 370rpm and when the pinch is going less it will be arround 400rpm

As an oil I use Shell 0w20 oil

1st start I heat it up until 95 degrees to have some heat for a low pinch. You have to warm it up for about 20 minutes when the bath on all sides feels hand warm before starting the motor.
After a half hour running you will notice the rpm did raise a bit and the current is much lower than at the 1st start.
Then I set it to 85 degrees and you will notice the current is going up a tiny bit and the rpm lowers a tiny bit.
Then I let it run for several hours and after that I lower the temp to 65~70 degrees and let it run for 1 hour.

Then stop, cool it down, take it out and clean it with brake cleaner and a towel.
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Old 04-25-2016, 04:15 AM
  #69  
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Originally Posted by 35Plus21 View Post
Roelof, have you noticed any differencies in the results if you compare your and Richards method. (Horizontal vs vertical assembly)

I am still thinking about making my own device...

-X-
Originally Posted by Roelof View Post
There is no difference, with both ways an open backplate is needed to keep the rod on its place alhough with the horizontal placement it seems not needed but you do not want to have the rod going its own way.

His OS as a nice compare came out in the same way as my OS.
I would like to add my comments..

My initial design was similar to Roelof’s unit, actually for this 2nd unit he is building for an RC friend, Roelof is using my old components. But during my design and making process, which initially was going on quite simultaneously, I streamlined my ideas and thoughts … Finally I was convinced that breaking-in the RC engine in the same position as it is in the RC car is crucial, so I decided that mine had to be a horizontal design, similar to Roy’s (Break In Dutch) first and personal unit, and not like his later commercial version where the RC engine shaft is in vertical position. My main doubt with the RC engine in that vertical situation is that the conrod can slide sideways from the bigend end possibly pushing the piston in the same way sideways with unknown theoretical consequences. The vertical design is easier and cheaper to produce, because no complicated oil seal system is required in the wall of the oil bath tub, but personally I had no good feeling about breaking in my highend RC engines in that vertical position.

By the way, I have never used any backplate in my horizontal EBIS unit.

And for your information, just a copy of my text in my "Building the EBIS" topic:

Originally Posted by Richard E View Post
Actually YES guys, thanks for asking, there are some things really really worth mentioning.

No.1: Meanwhile I have performed 25+ customer break-ins of RC engines in my prototype EBIS unit. Without any exception, ALL customers were very happy with the result. Just an example, there was 1 customer from Austria who sent me 2 Novarossi engines, 1x Novarossi 3.5ccm Elite 80FF + 1x Novarossi 3.5ccm Mito 70FFA. This customer had a race within 2 weeks so he had no time for break in and the weather forecasts were rain for the coming weeks. So I had to do it within 1 week, including from and to shipping. Now the interesting part… Where the normal factory pinch ends about 4.4-5.8mm below the sleeve top side, that specific MITO engine did 7.7 (!) mm. I just wondered how it would be possible to do a normal break-in fur such an engine?? … Anyway, he subsequently used the engines directly and was so enthusiastic with the result. Such an easy break-in at the track without the normal break-in issues and TOP results on the track and race. When I told him about the extreme factory pinch he gave me the feedback that actually THAT was the reason that he didn’t use Novarossi engines during many years.

That is just 1 typical example of the so many enthusiastic reactions that I got.

No. 2: Since season has started here in Europe, I personally had the same track experience. After EBIS break in, I went to the track with my OS Speed 2102 engine. I properly warmed up my engine with a hair dryer, did tank indle, then tank WOT, and then I went within 2.1/2 tank on the track in race trim, really amazing. And after inspection of the engine at home, the piston looks still exactly the same as directly after EBIS, just added with the normal combustion colour change… Ready To Race !!
In addition:

The power of my OS 2102 is impressive. During the race at my home track my colleague RC racers asked me if I used a different gearing, because the acceleration and RPM is amazing. Actually NOT, on my 977evo I use exactly the same “old” 977 gearbox, not yet the new 977evo. Next weekend I am going to run the Xceed Pro Stock series in the German Nitro-West Series, since these are the only allowed engine, together with the Novarossi N21-5T. The PSS has been in EBIS already, let’s wait and see the performance. I am full confidence.

As stated in my "Building the EBIS" topic, I am about to do a limited production series really soon, identical to my prototype EBIS unit, but designed for, and made by professional CNC mill and CNC lathe machining, with exactly the same components. This will be based on Pre Order, and I can tell you that meanwhile there are already more than enough requests. I case anyone else is interested, let me know (PM), then I can possibly still include.
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Old 05-05-2016, 12:48 PM
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Today I fired up the 1st Ielasi Tuned 9cl engine. This one did run for 4 hours in the oil bath and I was amazed how easy it did start (after a pre-heat). When hitting the throttle the engine did not show any signs of a tight fit. Did run 1 tank with a slight rich setting and the 2nd tank was straigh on a sharp tuning without any issues.

Yes, this is the future!
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Old 05-28-2016, 04:47 PM
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Czesc!

Any more info about engines done with axle up?

Still no time to did my new ones ... even in old way break in
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Old 05-29-2016, 03:19 AM
  #72  
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The guy who I made the 2nd one for has raced an own modded ISON21 done on his bench and no issues. Also a short break in and it was fast.
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Old 05-31-2016, 02:52 AM
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What about shell helix ultra 0W30?

I have racing at this weekend...

Anyway my build is not perfect but works

Project: Break in Dutch machine-1464642845032.jpg

Project: Break in Dutch machine-received_1080787278649397.jpg

Small leak. Edges was done on sand paper but...

It has to be run like is.
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Old 05-31-2016, 04:55 AM
  #74  
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Looks a bit... large. But hey, if it works
It is a nice build!

Shell 0w30 has a viscosity of 11. That could be tricky... Be aware that the low speed and the tight fit of the piston needs a thin oil to crawl between piston and sleeve. It can result in some small scratches from what I have seen with thicker oils.
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Old 05-31-2016, 05:29 AM
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Yes.
It is quite big because I had stuff liketc this.
Anyway.

Motul 0W20 300v high rpm?
It is hm.. hard find thin oil now
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