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Author Topic: M91 Vertical Hit & Miss Signed and Numbered 3  (Read 399 times)

Raphael

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M91 Vertical Hit & Miss Signed and Numbered 3
« on: August 21, 2019, 03:37:41 pm »
Bonjour,
I am the happy owner of the third vertical Hit and Miss engine sent by Jin, and I have to confess, it was not obvious to start it because my engine does not run in the same clockwise than Jin's (but Gil's ones are like mine) and because the start button is also on the opposite position.
Sorry in French, my experience :
Start : 
Run  : [
I have just a little concern with my engine, a little leak at the bottom of the water radiator due I guess to vibrations on a weak welding but I will solve this issue.
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

Stoker

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #1 on: August 21, 2019, 06:45:33 pm »
Aahhh Very COOL Raphael. That sure is a lively little engine bouncing joyously along like that!
"Information is not knowledge, Knowledge is not wisdom, Wisdom is not truth, Truth is not beauty, Beauty is not love, Love is not music: Music is THE BEST...   
Wisdom is the domain of the Wis (which is extinct). Beauty is a French phonetic corruption of a short cloth neck ornament currently in resurgence..."
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St Paul Steam

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #2 on: August 21, 2019, 08:11:39 pm »
thanks for the video Raphael, I don't understand French but it was neat listening to you talk 😊
Nice engine to be sure.
Bruce, St. Paul Indiana, USA
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Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #3 on: August 22, 2019, 01:21:35 am »
Bonjour Bruce,
Thank you for your effort.
A proverb says "A picture is worth 1 000 words", this is why I like videos.
I spend a lot of time on YouTube and 99 % of the videos on our passion (or other topics) are in English.
French people are not familiar with English, I am alas well alone to share on steam so I keep my native langage even if YpuTube does not offer the possibility to translate French automatically.
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #4 on: September 07, 2019, 10:43:55 am »
Bonjour,
I am very disappointed because my engine is facing two major problems that prevent it from working after 5 minutes of run (second test a week after my videos) :
   - It has no more compression at all, I guess it is the O'ring problem evoked by Gil and solved later by Jin I think.
   - The vertical moving part that blocks or not the exhaust cam has peeled off? In any case, it does not hold anymore. I have also to ask to Jin how to
      block it again.
I Hope Jin will solve my problems.
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

Dr.Rev.DelmarMacReady

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #5 on: September 07, 2019, 11:06:20 am »
I am sorry to hear you are having trouble, Raphael! The loss of compression could be caused by your valve issue( which I don't quite understand, but a pic of it would help-as you say a picture is worth 1000 words indeed).
I hope you have contacted Jin already. He has always responded quickly when I have messaged him through forum PM.
Bennydaheeb

Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #6 on: September 07, 2019, 12:58:55 pm »
Bonjou Benny,
I have sent a message to Jin, I am sure he will answer me. I don't think the compression issue is due to may valve issue. I have a picture but I do not know yet how to sher it, if someone could tell me how to share a picture, he is welcome  ;D
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

IndianaRog

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #7 on: September 07, 2019, 05:05:46 pm »
Raphael, my single O ring was located in the top most groove of the piston and like you, I had zero compression.  I switched the O ring to the other groove on the piston and problem was solved (I oiled it a bit and reassembled).  I have more O rings on order, but for now, it is running well with this simple change.

Roger
my YouTube channel:  https://www.youtube.com/results?search_query=indianarog

my website:  IndianaRog.com

Dr.Rev.DelmarMacReady

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #8 on: September 07, 2019, 06:18:09 pm »
Raphaël, it looks like your latch-out has rotated. These are secured through the crankcase with a bolt. It likely just came loose, but it also appears the steel piece on the brass carrier has also broken off in addition to the obvious damage to the flywheel.
 
This should be a lesson to us all- be sure to check torque on critical fasteners regularly. Being made of aluminum with steel bolts, I'd think no loctite was used. I did not use any when I reassembled, just torqued and plan to retorque later.
Bennydaheeb

Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #9 on: September 08, 2019, 12:31:20 am »
Bonjour Roger and Berny,
Thank you for your answers. About O'rings, I will order new ones, no problem.
About the bolt on the part which has rotated (I do not know its name), I have not seen it, this is why I thought about Loctite. I will look accuratly again, and if you can sher with us a picture of this small bolt, that would be great. Do I need to remove the flywheel ?
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

Hurric123

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #10 on: September 08, 2019, 01:48:06 am »
Hi Raphael, in your picture the flywheel surface looks damaged?.i can't figure out how the rotating flywheel can get damaged in a small area like that. or is it just a reflection onto the surfac?
Brian

Dr.Rev.DelmarMacReady

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #11 on: September 08, 2019, 07:20:41 am »
Bonjour Roger and Berny,
Thank you for your answers. About O'rings, I will order new ones, no problem.
About the bolt on the part which has rotated (I do not know its name), I have not seen it, this is why I thought about Loctite. I will look accuratly again, and if you can sher with us a picture of this small bolt, that would be great. Do I need to remove the flywheel ?
That bolt is threaded in from the crank side...You would have to split the cases to access it, which means it has to be disassembled. Did the latch-out mechanism damage the flywheel when it rotated?
Gah, what a bummer. Sorry for your woes. I would say send it to me and I'll fix it, but I think the postage would be exorbitant.
Bennydaheeb

Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #12 on: September 08, 2019, 02:04:19 pm »
Bonjour,
Hopefully, the flywheel is not damaged, the traces that you see are the remnants of tape and its glue that I used to try to make a launcher without pulley.
Benny, one of my brothers in law lives in Birmingham, bad luck, I saw him on september i France, so you are right, it would cost me a lot to send it to you but is is VERY kind of you to have suggested it, many thanks again. And in fact, I do not reject this option, this engines worths it. 
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane

Raphael

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Re: M91 Vertical Hit & Miss Signed and Numbered 3
« Reply #13 on: December 19, 2019, 02:17:33 pm »
Bonjour,
I have made this video for a friend who wanted to see accurately how the regulator works :
Raphaël, Membre du Modèle Yacht Club de Paris : http://mycparis.fr/
Membre de l'Offshore Club de Paris: http://site-ocparis.wifeo.com/
Youtube : https://www.youtube.com/rhavrane