International Waters Community

International Waters Gallery

deep groove ball bearing test fixture

Deep-Groove Ball Bearing 001.jpg

13 files, last one added on Sep 06, 2005
Album viewed 119 times

SG gas & SG 80 carbon fiber cowls

Deep-Groove Ball Bearing 057.jpg

8 files, last one added on Sep 16, 2005
Album viewed 59 times

the high price paid for engine building

Engine building 013.jpg

16 files, last one added on Oct 21, 2005
Album viewed 146 times

tuned pipes

Engine building 017.jpg

9 files, last one added on Oct 21, 2005
Album viewed 87 times

boat hardware

Engine building 027.jpg

6 files, last one added on Oct 22, 2005
Album viewed 59 times

machine tools & tooling


31 files, last one added on Nov 20, 2005
Album viewed 207 times

hot wire cutter

Deep-Groove Ball Bearing 066.jpg

6 files, last one added on Nov 24, 2005
Album viewed 42 times

Paul Bugl's hanger piston details

.15 bell valve 006.jpg

3 files, last one added on Jul 16, 2005
Album viewed 65 times

Spray Painting Equipment

paint spraying equipment 010.jpg

10 files, last one added on Mar 02, 2006
Album viewed 41 times

One more way to make a fuel tank

gas tank 017.jpg

17 files, last one added on May 03, 2006
Album viewed 88 times

laping tool, K-67 liners & pistons

liners & pistons 013.jpg

14 files, last one added on Jun 25, 2006
Album viewed 108 times

piston relief areas

piston cut-away 001~1.jpg

6 files, last one added on Jul 19, 2006
Album viewed 79 times

26 albums on 3 page(s) 2

Random files - Jim Allen's Gallery
Engine building 017.jpg
threaded aluminum multi-stage pipe532 viewsThis pipe allowed different angles & different length sections to be tested. This bad idea required to much time machining the 32 pitch thread used to connect each section. It was made to the same dimensions as the best multi-stage steel tuned pipes & give the same HP readings on dyno test.Jim Allen
machine tools 006.jpg
Custom tool bit grinding fixture521 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
dynamometer 034.jpg
inside of the front half of the dyno housing with shaft & rotor in place641 viewsThe front half is stepped inward to locate with the rear outward stepped half precisely. The center shaft is .5000 dia, precision ground, full hard O-1 tool steel. The ball universal end is machined as an intergal part of the shaft & is therefore exactly concentric. The ball is drawn down to a spring (blue) temper to accept the .001 press fit of the pin. Notice the cavity at the top of the housing where the barrel type out let valve sets. At the bottom of the housing a .1252 dia dowel pin locates both halves precisely. Also visible in this picture is the rotor & rotor mounting method used; two .250 thick hubs with 6 (6-32 SHC screws); one hub threaded & pressed on the center shaft (a coned point set screw is also used to ensure correct positioning); the other hub with clearance holes to locate squarely any rotor used. Rotor thicknes can be .1250 or .1562 & still be centered correctly. Jim Allen
Deep-Groove Ball Bearing 022.jpg
488 viewsThese jig bored engine mounts locate the concentrically ground (inside & outside) full hard (O-1 tool steel) front ends at the correct gear locations. The three holes are bored to the same size as the ground front ends, at the same time, in the same setup, insuring squareness in both axes at the same time. The front ends are easily slipped into these holes because of the two jack screws located between the four flat head clamp screws seen in the top photo. The eight visible through holes which allow fastening of the front ends, the crankcases & mount together, plus the four clamp screws, give one very rigid unit when all the alloy steel screws are tightened to 50 in lbs of torque. Jim Allen
Deep-Groove Ball Bearing 002.jpg
361 viewsA 6002; ABEC A3; T9H; S radial clearance (.0014 to .0018) bearing is mounted for testing. 6002 is the size (.5906X1.2598X.3543); ABEC stands for the Annular Bearing Engineers Committee; A3 is the tolerance class; T9H stands for a solid plastic (polyamide) retainer that is ball guided; & S stands for a special radial clearance. There is the AFBMA (Anti-Friction Bearing Manufactures Association) & the DIN (German Institute for Standardization). Jim Allen
290 viewsA .00005 indicator tells me the piece will repeat within .0001 when mounted in a precision collet.Jim Allen
connecting rod 026.jpg
653 viewsAfter the retainer is machined inside and outside with a relief in the middle, the roller windows are cut using a dividing head. The fixture has a B&S No. 10 taper which fits in the spindle of the dividing head. Jim Allen
pit box 005.jpg
Primer can442 viewsThe top of this 3-IN- ONE oil can was removed & the opening formed to accept the machined #303 stainless steel nipple. The nipple has a machined acme thread & the polyproplylene cap has a stainless steel reinforcing ring. Since I prime the engine directly in the glow plug hole, a 400 denier stainless wire screen is used between the nipple & the cap for filtering.Jim Allen
torque cradle using Dynamax fun for load1224 viewsThe load is varied by changing the size of the opening to the fan. Notice the air outlets on the circumference of the fan housing directing the escaping air away from the torque cradle. With the craddle locked by the black delrin block, the engines needle is set for maxium rpm. Then the cradle is released, & the swing position of the weight is noted by the pointer assembly. After the engine is stopped, a beam type torque wrench is placed in the nose cone & the entire unit is rotated for the torque amount.Jim Allen
hydraulic dynamometer953 viewsThe dyno has an infinitely variable load by controlling the amount of water in the housing. This is done with a valve in the base of the dyno housing. The valves knurled knob can be seen at the bottom rear of the dyno housing. Jim Allen

Last additions - Jim Allen's Gallery
646 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
550 viewsThese spring steel washers will prevent any galling of the clamping nut, even when it is tightened with great force.Jim AllenSep 27, 2007
569 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
366 viewsJim AllenSep 27, 2007
472 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
481 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
444 viewsThe collet holding fixture is made of #316 stainless steel & is not hardened. Jim AllenSep 27, 2007
426 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
529 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
789 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