Mechanical Fuel Injection Setup & Flow Testing
Computerized Engine Balancing
Certified Dynamic Balancing
Racing and Industrial work accepted
Valve and Clutch Spring Measurement and Analysis
Utilizing Performance Trends Valve Spring Analyzer Equipment
Force at Seated Spring Height, open height and all points in between
Height for a user defined spring force
Bind Height Clearance (between Open Height and Bind Height)
Of your engine and/or vehicle
Utilizing Performance Trends Engine Analyzer Pro and Drag Racing Pro
Muscle Car 4 speed transmission specialty repairs
Aluminum Transmissions: cluster hole sleeving, side cover sleeving,
tailshaft seal sleeving, proper crack repair, mounting ear repair,
threaded hole repair, surfaces machined, etc.
(Note: We do not rebuild or have parts for the whole transmission.)
Rod Center to Center Correction and Boring
Rod checked for bend and twist
Rod reduce width, big or small end
Rod Modify for small end bushing
Rod Custom Bushings
Rod Bore or hone for press fit or clearance
Piston Valve relief Flycutting
Piston Dome reductions
Pistons mounted to rods (float or press fit)
Pistons pin clearance honing
Have a unique balance application? Please call us.
Dynamic balancing of crankshafts and engine rotating assemblies.
Passenger size engines: Pistons are balanced to +0.5 / -.00 grams
Rods are balanced to +0.5 / - 0.00 grams on each end.
Even tighter tolerances are possible if you desire.
2.5 to 1000 lb capacity
10 ft length
0.008 grams accuracy
1, 2, & 3 plane features
Years of experience with Racing and OEM engines as well as industrial objects.
All Text and images on this website are copyrighted by David Koehler 2000 and beyond
All sales are final. Items and services provided by Koehler Injection are intended for off road use only.
No responsibility whatsoever will be accepted by Koehler Injection for any damage, injury or loss resulting from their use.
Serving the Midwest and the world. Engine balancing, crank balancing, balancing service - industrial balancing, automobile machine shop service, welding, machine shops, welding-industrial, in Champaign, Urbana, Danville, Peoria, Bloomington, Kankakee, Tuscola, Paxton, Arthur, Watseka, Mattoon, Charleston, Rantoul, Springfield, Effingham, Cordova, Rockford, IL, Crawfordsville, Indianapolis, Benton, Bloomington, Lafayette, Veedersberg, Terre Haute, IN, St louis, MO, WI, KY, TN, IA, MI, MN, NY, OH
Flywheels & Flexplates matched or modified for internal & external applications.
Over balance, under balance, no hole balance procedures on request.
Crankshafts, Camshafts, drive shafts including Remco.
Axles, fans, rotors, drums, Industrial items, heavy metal installation.
1 cyls. on up, including tractors and odd ball items.
Flywheels & Flexplates
Flywheel match balancing
Flywheel zero balancing
Flywheel external balancing
Computerized, Dynamic spin balancing of racing, small engine, tractor, truck, industrial, atv,
motorcycle, truck pulling, tractor pulling, marine, snowmobile, antique engines, flathead, cranks,
crankshafts, cam, camshaft, fans, impellers, pulleys, flywheel, flexplate, wheels, gears, sprockets,
clutches, harmonic balancers, armatures, shafts, brake rotors, brake drums, paper rolls, AC
compressors, augers, 1 cyl, V2, Kohler, Briggs & Statton, Generac, John Deere, Tecumsah, BMW,
International, Ferrari, Case, IH V800, Remco, Duramax, Harley, Model A, T, CAT 3208, Ford
Powerstroke 6.0, 7.3, Cummins, Rokon.
Don't see it? Don't know what to call it? Have something odd? Give us a call.
Urbana IL, USA
217 531 1770
M-F 9 - 5 CST
Many Photos may be enlarged
by clicking on them.
Cranks machined for double blower keys
Crank stroke measuring
Crankshaft counterweight reduction
Crankshaft heavy metal installation
Harmonic balancers balanced
Harmonic balancers corrected
Harmonic balancers honed for proper press fit
I would like to retire. I will sell the balancing shop. Just the basics to the whole nine yards.
20 - 50K depending on your needs.
Call Dave Koehler if interested.