Author Topic: Longboy's "SUPER TEE" Model Gas Engine  (Read 3020 times)

Offline Art K

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #30 on: February 02, 2019, 12:50:40 AM »
Just thought I'd let you know that I'm following along. Have to admit this is a mighty peculiar engine. :ThumbsUp:
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #31 on: February 03, 2019, 01:35:43 PM »
SUPER TEE will now be a fan cooled motor! A pair of 2 in. dia. fan blades from Ace breezes air between the cylinders at twice crank speed. Hubs are made from Delrin and are epoxyed to the fan hub recessed area. The right side fan is pressed fit onto a shaft riding in a bearing post.



The left fan hub is over bored with a # 11 or #12 drill bit to the 3/16 in. distributor shaft to free spin upon in counter rotation to the distributor drive. The fans turn counter clockwise. O-rings bring the power up driven by the stub shaft for #3 cylinder.

Wadda you mean, "It don't run"???

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #32 on: February 05, 2019, 05:52:35 AM »
A bar of Delrin for the intake manifold.



Ported for some brass 3/16 in. tubing to the valve blocks.



Trimming excess material away after port holes drilled.



The Traxxas carburetor is mounted horizontal from the bottom on a barrel plenum chamber. #4-40 screws draw it up to the manifold body.





Fitment to engine before trim.

Wadda you mean, "It don't run"???

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #33 on: February 06, 2019, 05:16:15 PM »
A straight shot in from the distributor for the wiring to the spark plugs.



I didn't find the proper stainless plug clips on Ebay this time. These mini 'gator clips do the job and look fine.    :ThumbsUp:

Wadda you mean, "It don't run"???

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #34 on: February 08, 2019, 05:27:52 AM »

Finalizing SUPER TEE! A free standing engine, vertical fuel tank strapped to the side. Just no room on the deck for it!



Some paint work now and re-assembly. Tighten up the loose items, loosen up the tight items and then readied for run trials. You will get your first look/see at the business side of this engine......this weekend! :popcorn:

Wadda you mean, "It don't run"???

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #35 on: February 09, 2019, 04:50:12 PM »
Although it looks a little disconcerting, the crank pin phasing is correct for SUPER TEE.  :)



And now...."A Little Engineering Explanation" by Longboy!  :Lol:

Crank pins for 3 cylinder engines are at 120 degrees. Looks like the figure on left at 12, 4 and 8 o'clock position looking end wise down crankshaft. For a geared crankshaft, it is 12, 8 and 8 looking across, right to left next figure. Firing order 1-2-3.



Yep.....I did  :facepalm: ......do a 12,4,8 set-up initially and it looked outta wack, the pistons coming up to TDC then.  Apparently, I did get it right figuring in the counter rotation.   :whoohoo:

Come back tomorrow to see SUPER TEE at work!   :cheers:

Wadda you mean, "It don't run"???

Offline crueby

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #36 on: February 09, 2019, 05:41:13 PM »
Looking forward to seeing this in action!

Offline Admiral_dk

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #37 on: February 09, 2019, 09:03:15 PM »
Quote
Come back tomorrow to see SUPER TEE at work!   :cheers:

You're such a tease  :LittleDevil:     But I will still look forward to see the video  :cartwheel:

Offline crueby

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #38 on: February 09, 2019, 09:05:48 PM »
Quote
Come back tomorrow to see SUPER TEE at work!   :cheers:

You're such a tease  :LittleDevil:     But I will still look forward to see the video  :cartwheel:
Wait, wait, he said see it 'at work', not how it works. First a video of it at work, then a video of it on vacation...   :facepalm2:

 :Lol:

Offline Longboy

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #39 on: February 10, 2019, 05:36:20 PM »
Welcome to todays introduction of the Longboy "SUPER TEE" model gas engine! From the opening post: "an inline engine with a right angle crank". What does that look like?  :noidea:  A simple graphic as a teaser. Some of you may have envisioned it after the gears to web post entry. Others.....just unsure as the story continued. Combing thru Google images of I/C engines, nothing came up at the start of this project. Seen geared together crankshafts but no geared cylinders to crank........and then in the middle of the build and some changes in the search wording, a U.S.patent from 2015. No running prototype and the developer has passed away. I can't claim the premise of this design beyond modeling another's work for real life application. I can say the layout proven, makes for an excellent running model. And that has it's own satisfaction!   :)    Dave 

   

3 cylinders. 43CC's. Bore & Stroke: 1.0 x 1.125 inch.



Build of SUPER TEE started Sept 5th and completed Nov 9th. (10 weeks).



Something new! Featuring geared cylinders to crankshaft. :o

SUPER TEE is a fine runner!



     

 

   

     









See it now!

 
     
Thanks for coming by to follow the progression of SUPER TEE. Share your thoughts and questions. Sometimes....I have answers! Dave      :cheers:
Wadda you mean, "It don't run"???

Offline crueby

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #40 on: February 10, 2019, 06:12:32 PM »
Very slick!  Sounds like a hot rod warming up before the drag race!
 :ThumbsUp: :ThumbsUp: :ThumbsUp:

Offline Brian Rupnow

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #41 on: February 10, 2019, 06:58:14 PM »
Congratulations. a very nice running and innovative engine.---Brian

Offline yogi

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #42 on: February 10, 2019, 08:51:12 PM »
Very interesting engine! Well done!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
I like your style of engine building.  :cheers:
Thanks for sharing your build.

Offline Admiral_dk

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #43 on: February 10, 2019, 09:38:18 PM »
It certainly runs nicely and is a very alternative take on an IC engine design  :praise2:

Offline ShopShoe

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Re: Longboy's "SUPER TEE" Model Gas Engine
« Reply #44 on: February 11, 2019, 01:18:01 PM »
Very Interesting and a very nice build.

Thank You for posting

ShopShoe