International Waters Community

International Waters Gallery


hydraulic dynamometer details


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35 files, last one added on Nov 09, 2005
Album viewed 557 times

torque cradle dynamometer details


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28 files, last one added on Mar 15, 2006
Album viewed 297 times

bell valve type induction


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10 files, last one added on Jul 16, 2005
Album viewed 259 times

fuel metering carburetor


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12 files, last one added on Jul 17, 2005
Album viewed 250 times

30,000 rpm machined steel tuned pipe


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8 files, last one added on Jul 17, 2005
Album viewed 189 times

propeller details


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13 files, last one added on Jul 25, 2005
Album viewed 933 times

chrome tank details


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9 files, last one added on Jul 22, 2005
Album viewed 228 times

liner machining & grinding fixture


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4 files, last one added on Jul 22, 2005
Album viewed 160 times

exhaust radii cutting fixture


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3 files, last one added on Jul 22, 2005
Album viewed 155 times

how to make a reliable 32,000 rpm+ .90 roller rod


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23 files, last one added on Jul 28, 2005
Album viewed 384 times

Non-reversed geared twins


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8 files, last one added on Sep 07, 2005
Album viewed 162 times

A .90 or 1.0 cu. in., completly custom built, completly reliable, 7+ HP motor


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46 files, last one added on Nov 21, 2005
Album viewed 512 times

26 albums on 3 page(s) 1

Random files - Jim Allen's Gallery
propellers 009.jpg
797 viewsAll these propellers have been hardened after annealing to allow pitching. Anneal C-20 beryllium copper by heating to 1450 deg. F (dull red) in a dark room. Quench immediately in ice cold water. If the props are heated to hot during annealing, the beryllium will leach out & the blades connot be hardened. I re-anneal finished balanced pitched props to ensure stabilization before hardening.Jim Allen
chrome tank 006.jpg
520 viewsA PVC holder showing the silicone coated fine strand copper wire which makes contact with the bottom of the brass sleeves lip. The top brass ring is held down by the PVC top cap which holds all parts firmly together.Jim Allen
P7160025.JPG
488 viewsThis fixture is used to square the side flange & cut the "V" in the fuel metering device.Jim Allen
dynamometer 008.jpg
pressurized fuel supply & a very rigid engine mount845 viewsThe base of this dyno is made of I.000 in thick Blanchard ground jig plate. All parts are doweled for accurate repeat location when dis-assembling or assembling & are made of very heavy stock for rigidty. The gas tank is also shock mounted.Jim Allen
dynamometer 035.jpg
inside of the rear half of the dyno housing582 viewsThe inside rear face of the dyno housing is stepped outward & fits precisely (.0001 clearance) inside the stepped inward front half. Notice the pockets; water inlet; barrel type water valve & the spring loaded graphite reinforced PTFE center shaft seal. A similar seal is used in the front housing half. No "o" ring is used to seal the dyno housing, only a very high finish on matting surfaces. There is no water leakage when operating the dyno!Jim Allen
torque cradle loading devices 011.jpg
Five loading devices728 viewsFive loading devices will allow one thousand rpm increments from 32,000 to 36,00 rpm. This will be accomplished by reducing the diameter of each blade. Jim Allen
propellers 001.jpg
743 viewsPitching blocks can be made of wood but metal last foreever.Jim Allen
machine tools 006.jpg
Custom tool bit grinding fixture514 viewsThis original design fixture can grind compound angles on any lathe tool bit from .1875 to .5000. The adaptors on the left allow round shank tools to be ground also.Jim Allen
liners & pistons 014.jpg
516 viewsThe piston is still higher up in the liner & is only .0001 smaller on the OD. The same taper is cut on the tops of all the machined pistons. It is .003 in total on the OD, per distance of .100 in. Jim Allen
cable_collet_clamps_032.jpg
314 viewsIn this photo the piece has been reversed for final machining of its locating bore. Grinding of this bore was found to be not necessary after hardening. Jim Allen

Last additions - Jim Allen's Gallery
cable_collet_clamps_058.jpg
630 viewsCompleted pieces are all interchangeable & after mounting to the flywheel are within +-.0002 concentricity 1.000 in from the split collets face. The same type of a flanged piece with six mounting holes is made when I set up ball and pin universals for solid shaft applications. When using the solid shaft method the thrust is driven up the entire shaft into the engine by using hardened thrust washers between the ball ends & there sloted ends. Jim AllenSep 27, 2007
cable_collet_clamps_057.jpg
538 viewsThese spring steel washers will prevent any galling of the clamping nut, even when it is tightened with great force.Jim AllenSep 27, 2007
cable_collet_clamps_056.jpg
558 viewsMachine an arbor; fasten pieces securely; machine the OD with carbide. Finished washers have no burs on the OD or ID & are very precise.Jim AllenSep 27, 2007
cable_collet_clamps_055.jpg
357 viewsJim AllenSep 27, 2007
cable_collet_clamps_054.jpg
462 viewsAfter clamping .010 thick spring steel pieces between two aluminum pieces, they are machined square to a convienent size. Boring with carbide gives a clean hole without burs. Jim AllenSep 27, 2007
cable_collet_clamps_053.jpg
473 viewsThis photo shows the locking nut being singled pointed internally. This piece does not have to be hardened because it will ride against the spring steel washer when tightening the split collet. It is made of #316 stainless steel.Jim AllenSep 27, 2007
cable_collet_clamps_052.jpg
436 viewsThe collet holding fixture is made of #316 stainless steel & is not hardened. Jim AllenSep 27, 2007
cable_collet_clamps_051.jpg
416 viewsThe split collets are ground internally while being held in the fixture directly above them. External grinding was proved to be un-necessary.Jim AllenSep 27, 2007
cable_collet_clamps_050.jpg
519 viewsThis photo shows the back ends of the split collets being ground square to their ID's. This is done in a Suburban Tool Master-Grind. (+-.00005 spindle runout) The split collets are wrung onto a hardened indicated gage pin for this operation.Jim AllenSep 27, 2007
cable_collet_clamps_049.jpg
776 viewsTwo 6-32 SHCS, a precisely machined steel hub on the flywheel face (.5002 OD) & a flange on the tapered sleeve which has a 1.125 in OD (.5000 ID), ensures positive location of the tapered sleeve each time it is mounted. The hub is #316 stainless steel & is shrunk into the flywheel before final machining. Notice the six bolt hole pattern used on the tapered sleeve's flange. This feature allows automatic positioning of the propeller to a horizontal position if the engine should stop suddenly at wide open throttle & prevents the hull from diving! It is used on solid drive shaft setups.Jim AllenSep 27, 2007