| Main Bearing, Rod Bearing & Cam Bearing Sets. |
| Great Plains recommends, uses and sells only factory OEM quality bearing sets. Always replace all bearing sets when overhauling your engine and be sure to replace cam bearings if you are trying a different camshaft. Main and rod bearings also available for crankshaft with main and rod bearing journals ground .010" or standard at same price. |
| Main Bearing Set . . . $29.95 Rod Bearing Set . . . $9.95 Single Thrust Cam Bearing Set . . . $9.95. Please note standard or .010" when ordering! |
| Crankshaft Gear Set. |
| Contains all the parts necessary to drive the camshaft and secondary ignition system or 009 distributor. Available as individual parts also. |
| NEW Complete Crankshaft Gear Set . . . $36.95. |
| Individual items - new manufacture | |
| Snap ring | $2.99 |
| Cam timing gear | $14.90 |
| Brass drive gear | $8.85 |
| Slinger | $2.75 |
| Large woodruff key | $2.75 |
| Small woodruff key | $2.275 |
| Spacer | $3.50 |
| 82mm Forged Crankshaft. |
| The only one like it made sepecifically for aircraft use. Crankshaft is made from a one piece billet of 4340 steel and machined by SCAT Enterprices to our specifications. Crank features a milled slot for crank gears instead of a woodruff key, the nose of the crank features a milled slot that is 180 degrees from the crankshaft gear slot. It also features a 1/2" fine thread prop hub retaining thread instead of the 20mm thread found on standard cranks. This thread is machined into the crank almost 3" and does not have any retaining threads for the first inch. |
| Price . . . $749.95. To taper crank for Force One Prop Hub, add . . . $75.00. Stock 82mm cw crank (for Rear Drive) . . . $595.00 Please note: Tapered crank may not always be in stock. |
| Stroker Connecting Rods. |
| These are genuine VW German connecting rods machined to Great Plains specifications. Rods are sized for center to center length, contoured on the big end for clearance, honed on the I.D. for exact bearing fit and honed on the small end for an exact fit of the wrist pin. When this is all complete, they are balanced on both ends. |
| Price . . . $129.95 set. |
| Stock 69mm Rebuilt VW German Crankshaft. |
| These crankshaft are original VW German manufacture and remachined to .010" or .020" for aircraft use. Crankshaft are made from a one piece forging of 1045 steel. Each crankshaft undergoes "Quality Control" inspection before considered for use in aircraft conversions. |
| Price . . . $119.95. To taper and deep drill for standard tapered prop hub add . . . $65.00. |
| Stock Connecting Rods. |
| These are used with the standard 69mm crankshaft. Connecting rods are standard German OEM manufacture. Rods are sized for center to center length, honed for bearing clearance, honed for wrist pin fit and balanced on both ends. |
| Price . . . $89.95. |
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| Four Dowel Gland Nut & Washer |
| is used with a standard 4 dowel flywheel. |
| Price . . . $8.95. |
| Eight Dowel Gland Nut & Washer |
| is used with an 8 dowel flywheel. | Price . . . $11.95. |
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End Play Shims. Used to set end play clearance between .004" and .008". Available in .24mm, .30mm, .32mm, .34mm and .36mm thickness. Price . . . $.89 each. |
| "Points to Ponder" if you have been doing your homework on VW conversions, you may noticed that varied discussions have taken place in the last 20 years on crankshaft failures in VW conversions. We believe that 98% of the failures can be logged into 5 categories. Cast crankshafts, poor quality forged crankshafts, loose prop hubs, prop strikes, and overweight propellers. Cast cranks have a yield strength almost 10 times less than that of our 4340 forged crank. Poor quality aftermarket forged cranks have sulpher added to the crank to speed up the manufacturing process. This is the equivalent of swiss cheese (the holes) and results in a crankshaft that is not much better than a good quality casting. Loose prop hubs used to be a leading cause of failures. One manufacture had an application where the bolt could physically pass through the hub. Combined with a soft washer that would yield at 60 pound of torque and ouch! In our opinion any time you have a prop strike the crank and hub should be considered unusable for aircraft use again. In the last 3 years with advances in propeller manufacturing we have found the limits for VW propeller weight. About 6 pounds maximum weight and 100% wood only when driven off the pulley end. |
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To place an order: Call us at 1-800-922-6507
Questions at 1-402-493-6507
Fax us at 402-493-3846.
Inquiries can also be directed to:
gpasc@earthlink.net
Great Plains Aircraft Supply Co., Inc.
P.O. Box 545
Boys Town, NE 68010
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