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Author Topic: M 90 modification  (Read 1656 times)

Stoker

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Re: M 90 modification
« Reply #15 on: September 23, 2019, 02:42:14 pm »
So much good has been added here, to an already great product!
"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...   
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F. Zappa ... by way of Mary, the girl from the bus.

odu50

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Re: M 90 modification
« Reply #16 on: September 24, 2019, 03:07:22 am »
I absolutely love the exhaust note, & will probably "borrow" the fuel shut off idea as well...Nicely done that 👍
Hello
Thank you for your good comments
Just a piece of information.
With the fuel valve, there is a fear of an air bubble remaining in the pipe, if there is an air bubble, the engine does not work well.
Christian.

St Paul Steam

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Re: M 90 modification
« Reply #17 on: September 24, 2019, 08:06:22 am »
Good to know, thank you 😉
Bruce, St. Paul Indiana, USA
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RobA

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Re: M 90 modification
« Reply #18 on: October 19, 2019, 09:32:08 pm »
Very nice runner Christian!
What fuel are you using?
Is there any oil mixed in?
What is your ignition timing?

Sehr netter Läufer Christian!
Welchen Kraftstoff verwenden Sie?
Ist Öl eingemischt?
Was ist Ihr Zündzeitpunkt?

Thanks, Rob

RedRyder

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Re: M 90 modification
« Reply #19 on: October 20, 2019, 02:49:55 pm »
Christian, I very much like your new and much sturdier fuel tank mounting brackets.
Very well done!


Gil

odu50

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Re: M 90 modification
« Reply #20 on: October 20, 2019, 04:36:15 pm »
Very nice runner Christian!
What fuel are you using?
Is there any oil mixed in?
What is your ignition timing?

Sehr netter Läufer Christian!
Welchen Kraftstoff verwenden Sie?
Ist Öl eingemischt?
Was ist Ihr Zündzeitpunkt?

Thanks, Rob
Hello Rob.
I use Coleman fuel without added oil, I put oil in the lubricator.
The ignition is a little bit before the dead point high, Can be 1 or 2 degrees.

odu50

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Re: M 90 modification
« Reply #21 on: October 20, 2019, 04:37:43 pm »
Christian, I very much like your new and much sturdier fuel tank mounting brackets.
Very well done!


Gil
Thank Gil.

IndianaRog

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Re: M 90 modification
« Reply #22 on: October 21, 2019, 08:59:32 pm »
Christian, where did you get the fuel tank valve and the exhaust stack?  I assume you machined them, but if there is an online source I would love to make those mods to my M90 and M91.

thank you,
Roger
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my website:  IndianaRog.com

odu50

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Re: M 90 modification
« Reply #23 on: October 22, 2019, 03:21:55 pm »
Christian, where did you get the fuel tank valve and the exhaust stack?  I assume you machined them, but if there is an online source I would love to make those mods to my M90 and M91.

thank you,
Roger
Hi Roger.
the exhaust stack Yes, I engined myself.
 the fuel tank valve, I bought it here
https://www.dampfmodellbau.ch/?c=8
the first M 5x0.5

IndianaRog

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Re: M 90 modification
« Reply #24 on: October 22, 2019, 05:16:02 pm »
Thank you Christian !

Roger
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Belugawhaleman

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Re: M 90 modification
« Reply #25 on: December 25, 2019, 02:12:15 am »
Great mods. I like the more sedate engine speed and sound. What are the threads used on the exhaust components?Are they metric?
PAUL
Civilization is the limitless multiplication of unnecessary necessities.

rodnoc

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Re: M 90 modification
« Reply #26 on: December 26, 2019, 03:16:30 am »
The muffler threads on my ET1 are M6 x 0.75

Fullraceflathead

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Re: M 90 modification
« Reply #27 on: January 09, 2020, 02:45:14 pm »
Hello.
for your information.
I made new springs with 0.3mm (0.0118 inch) steel wire, length 11mm (0.433 inch) diameter 4mm (0.157 inch)
good idle operation.
Greetings Christian.

Great Idea, thanks for the dimensions.