Air compressor engine

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Well some good news finally. I was talking to Roy from S/S ignitions at the NAMES show. He was talking about his board and I asked what the primary resistance on the little coils he has is. He told me they are well under one ohm. Then he told me that he has used the little CDI's to fire full sized coils. I told him my coil was almost one ohm and he thought about it for a second. Told me that it should do the trick. I was going to go home and unsolder the coil off an ignition I have at home. Then he said no need, he sells the board without the coil on it. So i figured why not try it.

Well kiss my A$% it works just fine. We have spark. I need to make a new cover for the enclosure so I can mount a 5 volt regulator and a power port like I use on all my stuff. Im back in the game.

 
Well some good news finally. I was talking to Roy from S/S ignitions at the NAMES show. He was talking about his board and I asked what the primary resistance on the little coils he has is. He told me they are well under one ohm. Then he told me that he has used the little CDI's to fire full sized coils. I told him my coil was almost one ohm and he thought about it for a second. Told me that it should do the trick. I was going to go home and unsolder the coil off an ignition I have at home. Then he said no need, he sells the board without the coil on it. So i figured why not try it.

Well kiss my A$% it works just fine. We have spark. I need to make a new cover for the enclosure so I can mount a 5 volt regulator and a power port like I use on all my stuff. Im back in the game.

 
thats realllly good news,:) you must be a happy man
did he gave you a part number, curious to find out if it would run
my GM twinn coil also???
 
Steve...

Always wanted to follow in your footsteps, and hope one day to know a .001th of what you already forgot. Always a pleasure to see the work that you tackle, and your projects are both informative and inspirational.

Question, from a novice:
This engine that was just built from a compressor, is it just as good functionally, as a working engine, as it was as a compressor? You had to add all the bells and whistles to get the original compressor to become an engine, but can it do work, or, is it really just for display? Given, that the final product is only as good as the designer/machinist, I would guess that you made a functional engine from a compressor.

Also, are compressors, by design, built stronger that comparable gas engines? So, if you convert a compressor into a gas engine do you have to beef-up certain components, like con-rods, cranks, etc?

Frank
 
Compressors of the size this one is are comparable to brigs strattons. There is alot of components that are almost the same. If I wanted to I would think it would power a minibike pretty well. The cams are real close. I think my valves are bigger and the CID is going to be more being a twin. 354cc. Mechanically the compressor is better because the bearings are heavy duty compared to a brigs.

The only downfall is camshaft lubrication. The cam not being in the block it will need to be lubed by the user. Not a big deal just need to make sure it gets done.
 
come on steve just get that thing running. we want to see and here it. :)

very nice work by the way
chris
 
Recently Roy started supplying a small sensor mount to insulate the sensor from the case. I think it's supposed to help keep the sensor's from failing. Personally I have never had one fail that I didn't deserve but I thought it might make replacing one easier so I went with it. I had to modify it to get it to work. The mount was shortened and the top was trimmed to clear the magnets. I but the disk that holds the magnets on the shaft, put a sharpie thru the magnet hole and drew a circle. That marks the center line of the magnet.




The magnet disk is installed.




Then the ignition was installed over the magnet disk.




The new cover has a power block and a 5 volt regulator mounted on it.

 
Well I have a starter thingy made and the throttle is temped on there. I'm a little worried about the compression. When I tried to turn it over the battery drill had a hard time and started smoking. I moved over to the "good" drill and oh my god! The motor was jumping all over the place. I had no doubt the rings would be fine and now I know the valves are fine too. The only problem I see now is if I can hold the throttle open with one hand and crank the engine over with the other. My next post might be in the "mistakes, blunders, and boo boos" or the "machining with disabilities" sections. But only until the broken wrist heals.

I'm soaking the fuel tank with gas right now and will give it a final flush and see if it will start in just a few hours.
 
Waiting in anticipation of good things to come with this compressor re-vamp. An amazing transformation by a the master of the morph! A silk purse from a sow's ear.

Steve...continue the translation. Can't wait to see it on You-Tube.


Freank
 
I just ordered a starter for a 20HP, 2 cylinder Briggs Stratton.


The spacer only needs to be .100 thick. If I had to I could make longer push rods. I'm going to put a starter on it and see what happens.

When the starter comes it will have a gear on it. Is there a way to be able to tell what pitch the gear is so I can make a flywheel. It will need to be 6-7 inches around. I have some steel here somewhere. It will need some teeth so I guess it's time to learn how to cut gears.
 
stevehuckss396 said:
I just ordered a starter for a 20HP, 2 cylinder Briggs Stratton.


The spacer only needs to be .100 thick. If I had to I could make longer push rods. I'm going to put a starter on it and see what happens.

When the starter comes it will have a gear on it. Is there a way to be able to tell what pitch the gear is so I can make a flywheel. It will need to be 6-7 inches around. I have some steel here somewhere. It will need some teeth so I guess it's time to learn how to cut gears.
Click to expand...

Is this link with software any help

http://www.idleamusements.com/?page_id=54
 
Or this not sure what your looking for

Pitch is the distance between a point on one tooth and the corresponding point on an adjacent tooth.[5] It is a dimension measured along a line or curve in the transverse, normal, or axial directions. The use of the single word pitch without qualification may be ambiguous, and for this reason it is preferable to use specific designations such as transverse circular pitch, normal base pitch, axial pitch.


  • Pitch



  • Tooth pitch



  • Base pitch relationships



  • Principal pitches

Circular pitch, p Arc distance along a specified pitch circle or pitch line between corresponding profiles of adjacent teeth.Transverse circular pitch, pt Circular pitch in the transverse plane.Normal circular pitch, pn, pe Circular pitch in the normal plane, and also the length of the arc along the normal pitch helix between helical teeth or threads.Axial pitch, px Linear pitch in an axial plane and in a pitch surface. In helical gears and worms, axial pitch has the same value at all diameters. In gearing of other types, axial pitch may be confined to the pitch surface and may be a circular measurement. The term axial pitch is preferred to the term linear pitch. The axial pitch of a helical worm and the circular pitch of its worm gear are the same.Normal base pitch, pN, pbn An involute helical gear is the base pitch in the normal plane. It is the normal distance between parallel helical involute surfaces on the plane of action in the normal plane, or is the length of arc on the normal base helix. It is a constant distance in any helical involute gear.Transverse base pitch, pb, pbt In an involute gear, the pitch on the base circle or along the line of action. Corresponding sides of involute gear teeth are parallel curves, and the base pitch is the constant and fundamental distance between them along a common normal in a transverse plane.Diametral pitch (transverse), Pd Ratio of the number of teeth to the standard pitch diameter in inches.
1a203fe304ff0e15ac8002250394c0a3.png
Normal diametral pitch, Pnd Value of diametral pitch in a normal plane of a helical gear or worm.
ace420b08910a7d0f929ba7e1ed3a084.png
Angular pitch, θN, τ Angle subtended by the circular pitch, usually expressed in radians.
d0591912146aa457b33bffd2bac9e80d.png
degrees or
809b70e6bcd8f70971948d2660ce5d58.png
radians[edit] Backlash
 
Steve I have built 6 compressor engine and had to use 10 in flywheel that weight 10 lb to get them to run good.
They just won't run with a light flywheel.
Wayne
 
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