Author Topic: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version  (Read 26326 times)

Offline Admiral_dk

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #345 on: March 16, 2024, 09:26:38 PM »
Anticipating first Pop  :popcorn:   :ThumbsUp:

You just reminded me about another reason why I probably never will make a true model - those Nut are down to a size where they are no fun anymore  :o

Per      :cheers:

Online fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #346 on: March 17, 2024, 10:27:45 AM »
Hi Per, may I proudly present, the first pops.


<a href="https://www.youtube.com/watch?v=ZzJ4TaqvjCY" target="_blank">http://www.youtube.com/watch?v=ZzJ4TaqvjCY</a>
Kind Regards
Achim

Offline MJM460

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #347 on: March 17, 2024, 10:59:13 AM »
Hi Achim, that is wonderful.  What a rewarding first run.  Congratulations.

MJM460

The more I learn, the more I find that I still have to learn!

Offline gerritv

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #348 on: March 17, 2024, 12:33:10 PM »
What a great sound, congratulations

gerrit
Don't confuse activity with progress

Offline Admiral_dk

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #349 on: March 17, 2024, 01:09:15 PM »
I would say that it Runs Very well  :ThumbsUp:  and if this was first attempt at starting it => Very satisfying for you   :cheers:

Per

Offline RReid

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #350 on: March 17, 2024, 02:05:42 PM »
Congratulations Achim, a wonderful set of first pops! The engine runs as great as it looks, and so nicely finished off. Beautiful work!:ThumbsUp: :ThumbsUp: :cheers:
Regards,
Ron

Offline crueby

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #351 on: March 17, 2024, 02:20:29 PM »
Spectacular!

Offline Roger B

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #352 on: March 17, 2024, 04:45:03 PM »
Wonderful  :praise2:  :wine1: That's more than just a few pops  :)
Best regards

Roger

Offline Michael S.

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #353 on: March 17, 2024, 07:07:04 PM »
I congratulate you on this well-running engine. Sounds good.

Michael

Offline Dave Otto

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #354 on: March 17, 2024, 08:55:26 PM »
Congrats Achim!
Very nice!

Dave

Online Kim

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #355 on: March 17, 2024, 10:01:53 PM »
Congratulations, Achim!  It runs as good as it looks!  :ThumbsUp: :popcorn:

Kim

Offline cnr6400

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #356 on: March 17, 2024, 11:48:05 PM »
 :ThumbsUp: :ThumbsUp: :ThumbsUp:  :popcorn: :popcorn: :popcorn: :cheers:
"I've cut that stock three times, and it's still too short!"

Online fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #357 on: March 18, 2024, 08:53:51 AM »
Hi everybody, thank you very much for popping in and all the friendly comments.


Yesterday I archive a run time of nearly 60 minutes, 125 ml of fuel has been burned.
The engine does not like to start in cold conditions as the set up is now.
I have a miss lined set up of the cylinder #2 tappets in front of the cam lobes.
The gap should be 0,1 mm but is 0,35 mm there.
That ends in a different opening duration of the valves. See attached chart.
The opening duration is shorten by nearly 40° and we have a long time of everything closed between exhaust fully closed and inlet starts to open.
Nearly 50 degrees, that is not good.
The temperature has been fine, cooling worked well.


But the early morning inspection, shows a crankshaft failure.
Just when I fixed the timing wheel again, purpose was to check what has happened during the first breaking-in with the timing of the engine, I noticed a strange movement of the flywheel at cylinder #2.
<a href="https://www.youtube.com/watch?v=H0nH1-6YKkA" target="_blank">http://www.youtube.com/watch?v=H0nH1-6YKkA</a>

First idea, to make a fixture to clamp the crankshaft at the main and con-rod bearings and glue it with Loctite 648.
Additionally a taper pin, similar to ISO 2339 will be set.

I have to think about it before I will start the final action.
First of all, draining the cooling system and a disassembly of the crank drive.

Kind Regards
Achim

Offline RReid

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #358 on: March 18, 2024, 02:48:21 PM »
Ouch, I'm sure that crank failure would be frustrating for you. Having worked closely in the past with a colleague from your area, I can almost hear some of the words you may have used! Otherwise the test run seems to have been quite positive, the other issues are more like the normal "teething" troubles. Getting nearly an hour of steady running and with good cooling is a great result!
Regards,
Ron

Online fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #359 on: March 18, 2024, 02:59:23 PM »
Hi everybody, I am sure it is related to my problem with the silver soldering with the crank shaft some time ago.
https://www.modelenginemaker.com/index.php/topic,10565.msg250127.html#msg250127
Kind Regards
Achim

 

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