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Author Topic: Got the M90 down to around 48 hits a minute with softer springs  (Read 127 times)

Jim

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Got the M90 down to around 48 hits a minute with softer springs
« on: October 24, 2020, 09:01:36 pm »
Got the M90 down to around 48 hits a minute with softer springs.

https://youtu.be/LDhDwSAnTns
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Jim

My YouTube Channel https://www.youtube.com/user/Blue123Heeler/videos


Nick

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That lube sure looks to be some good stuff

So what’s the next mod to the engine?  ;)
Nick

Jim

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That lube sure looks to be some good stuff

So what’s the next mod to the engine?  ;)

Nick to be honest mate, it makes me a little nervous to take one of these apart too much and muck up how good they are running.

I really did like what @odu50 did to his in this thread though -

https://www.officeofsteamforum.com/general-discussion-scale-model-gas-engines-hit-miss-throttle-governed-non-compression-etc/m-90-modification/
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Jim

My YouTube Channel https://www.youtube.com/user/Blue123Heeler/videos


Stoker

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Nice work Jim ..... keep after it and keep reporting back mate!!!
"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..."
F. Zappa ... by way of Mary, the girl from the bus.

Jim

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Nice work Jim ..... keep after it and keep reporting back mate!!!

Thanks Daniel, can't believe what time wasters these are... boy oh boy am I having fun. Now I know why everyone else's posts/threads sounded so happy when they were talking about these little gas (I mean petrol - see you guys are rubbing off on me :) ) engines.
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Jim

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RedRyder

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Nice work, Jim!


I love your spring research department!

Jim

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Nice work, Jim!


I love your spring research department!

Thanks Gil, lot of effort went into the SRD :)
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Jim

My YouTube Channel https://www.youtube.com/user/Blue123Heeler/videos


St Paul Steam

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you have that running Sweet Jim , now the curios side of me wants to know how you got all those springs in the vice at one time without 3 other ones falling out before you got the vise closed again...lol
Bruce
St. Paul Indiana , USA

Jim

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you have that running Sweet Jim , now the curios side of me wants to know how you got all those springs in the vice at one time without 3 other ones falling out before you got the vise closed again...lol

LOL Bruce, there was some frustration (and a little cursing) to get those all standing up, I was determined that they would be though :)

There was just enough slop in the vice jaws that I could pull it out just a touch and squeeze each one down, took a long time to get them all up and then tightened the vice.
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Jim

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tony1951

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That engine is running nicely there Jim. I need to send for some suitable springs to test like that. I currently have one of the original springs slightly over stretched, connected across the centre of the governor.

That lubricant might find a use on my motorcycle chains. I lube them now with 90 weight gear oil applied every tank of petrol (about 200 miles) with a small paint brush. I apply it sparingly since more will be thrown off, and I don't want it on the rear tyre for obvious reasons....

Jim

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These little engines are ridiculously addictive, a few months ago I could never have imagined myself mucking around with petrol engines.

What's that old saying "Never say never" !
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Jim

My YouTube Channel https://www.youtube.com/user/Blue123Heeler/videos


 

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