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Tiny 0.25cc Tiger Empty Tiny 0.25cc Tiger

Post  ian1954 Sat Sep 09, 2017 7:53 pm

I can't resist small diesels

Tiny 0.25cc Tiger Tiny_t10

Here it is with the real MkIII

Tiny 0.25cc Tiger Dsc00810
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Post  fit90 Sat Sep 09, 2017 8:52 pm

Welcome back,

We have missed you and hope everything is good with you. And, as always, thank you for sharing your engine collection with us.
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Post  Cribbs74 Sat Sep 09, 2017 9:57 pm

"Hold me closer tiny Diesel" somehow that tune popped in my head. Nice little engine Ian.
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Post  Marleysky Sat Sep 09, 2017 10:32 pm

@Cribbs74 wrote:"Hold me closer tiny Diesel" somehow that tune popped in my head. Nice little engine Ian.

THANKS, now I can't get it out of mine!! lol! I don't want to say "cute" , but that little diesel is Cute.
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Post  Surfer_kris Sun Sep 10, 2017 3:27 am

Yes, cute is the best word I guess. It reminds me of Arne Hende and all his little cute engines. Smile
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Post  getback Sun Sep 10, 2017 8:49 am

Very Nice little Tiger there Ian !! . Good to hear from you hope things are better !                    
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Post  roddie Sun Sep 10, 2017 9:03 am

Hi there Ian! Great to hear from you! Nice little (tiny) engine you've got there. Is there a function to the concave-radiussed front-portions of the cranks on those engines? They look a bit like "pulleys".. but would be to wide to grip a belt.. Huh...

Maybe an afterthought to the original design to put more space between the prop and the needle.. without having too much mass?
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Post  akjgardner Sun Sep 10, 2017 2:51 pm

Nice lil engine , good to see you on here
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Post  ian1954 Sun Sep 10, 2017 3:52 pm

@Surfer_kris wrote:Yes, cute is the best word I guess. It reminds me of Arne Hende and all his little cute engines. Smile

This is the Arne Hende miniature but 0.5cc

Tiny 0.25cc Tiger Ot0_510

I am addicted to tiny diesels!
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Post  ian1954 Sun Sep 10, 2017 4:18 pm

@roddie wrote:Hi there Ian! Great to hear from you! Nice little (tiny) engine you've got there. Is there a function to the concave-radiussed front-portions of the cranks on those engines? They look a bit like "pulleys".. but would be to wide to grip a belt.. Huh...

Maybe an afterthought to the original design to put more space between the prop and the needle.. without having too much mass?

Not an afterthought - Oliver Tiger engines were primarily for combat and team race requiring fast restarts and this is the lightest way of having distance between prop and needle. It may not be obvious from the pictures but these are ball bearing engines and lengthening the crankcase would push weight further forward.
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Post  roddie Sun Sep 10, 2017 9:42 pm

@ian1954 wrote:
@roddie wrote:Hi there Ian! Great to hear from you! Nice little (tiny) engine you've got there. Is there a function to the concave-radiussed front-portions of the cranks on those engines? They look a bit like "pulleys".. but would be to wide to grip a belt.. Huh...

Maybe an afterthought to the original design to put more space between the prop and the needle.. without having too much mass?

Not an afterthought - Oliver Tiger engines were primarily for combat and team race requiring fast restarts and this is the lightest way of having distance between prop and needle. It may not be obvious from the pictures but these are ball bearing engines and lengthening the crankcase would push weight further forward.

That makes sense to me Ian. They're very nice-looking engines. Have you run the "tiny" one? How exactly does a 1/4cc engine compare in cu. in.? I feel too burnt-out to do the math.. Laughing I know that one liter in regards to automotive engines equals approx. 60 cu. in but cc's..... well it's Sunday night.. I played a gig this afternoon and I'm too tired to figure it out.. Laughing Being predominately European; diesel displacements are typically classified in cc's. I've often wondered how to compare them to the cu. in. designated engines.
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Post  KariFS Sun Sep 10, 2017 10:46 pm

Roddie, you got to love the metric system Smile One litre is 1000cc as the litre volume is determined by a cube of 10x10x10 centimeters. And that volume of water weighs exactly one kilogram. It makes conversions (between metric units) easy.

Anyway, that cute little Tiger is about .015 cu in. Pretty impressive!
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Post  Surfer_kris Mon Sep 11, 2017 12:57 am

Metric is really easy when one has grown up with it. Smile

It is quite easy though to remember that 1cc is about .061 cubic inch, and then use a calculator...
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Post  roddie Mon Sep 11, 2017 11:04 am

Thanks Kari and Kris for explaining that. Thumbs Up
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Post  Surfer_kris Mon Sep 11, 2017 1:09 pm

We actually had several people in Sweden who where both interested, and skilled enough, in making very tiny diesel. It is a fair bit before my time, but here is a fine one by Harry Fjellström in 1948 (0.04cc !);

Tiny 0.25cc Tiger Hf1110

Or how about a diesel generator for the next powercut?

Tiny 0.25cc Tiger Hf1810
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Post  fredvon4 Mon Sep 11, 2017 2:12 pm

Not quite Steam Punk but the Diesel gen set is really cool!
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