Jims Catalogue

CASE LAPPING TOOL

PARTS AVAILABLE SEPARATELY

NO. QTY.

DESCRIPTION

PART NO.

1 1

MAIN BODY SHAFT

96710-TL-1

2 1

LEFT SLEEVE BEARING

96710-TL-2

3 1

LEFT LOCKING NUT

2266

4 1

LEFT COLLAR

96710-TL-4

5 1

LAP HEAD 1-3/4” O.D.

96710-TL-5

6 1

RIGHT COLLAR

96710-TL-6

7 1

NUT

1100

8 1

WASHER

2020

9 1

CAM COVER PLATE

96710-TL-11

2

10

10 1

DRILL BUSHING

2132

1

3 4

11 1

RETAINING RING

2134

9

12 7

SCREW

2135

13 1

INSTRUCTION SHEET

96710-IS

11

5 6 7 8

JIMS ® goes the next step in case lapping with our pinion bearing race lap. This tool allows the engine builder to achieve the best of both worlds: removal of more material in less time with greater accuracy than a conventional lap. JIMS ® case lap—the first of its kind—is guided on both sides of the pinion bearing race. This addition- al support on the cam gear side of the bearing race is achieved by means of a bolt on base plate that precisely locates a drill bushing in which the lap turns. This base plate is located on the same engine case pins as the cam cover. The positioning of this drill bushing is held within .0002” to the engine case pins and within .0002” of case centerline. Now, instead of guiding only from the left side with Timken ® bearings, which are a floating fit, JIMS ® case lap uses a special ground bearing sleeve to hold left side of lapping shaft without movement. Both ends of the lap are supported in precisely the same cen- terline as the flywheel assembly. With this extremely rigid arrangement, it is possible to power the lap with a low speed drill motor with- out fear of chatter in the lapped bearing race. If a drill motor is not available, JIMS ® lap can be powered by the conventional hand crank. Use JIMS ® No.1710 to remove snap ring, a must on 1990- present H-D ® cases. NOTE: For 1958-69 early cases, use H-D ® No.2341HW original cam cover screws. All wear surfaces are hardened and ground tool steel for a lifetime of service. For more details see No.96710-IS instructions. No .96710-TL - Case lap tool BIG TWIN CASE LAP TOOL Use on all 1958-present single cam. ( NOTE: Includes aftermarket motors .)

CLOVER ® OIL BASED LAPPING COMPOUND Clover ® is the brand used by H-D ® enthusiasts for years. Use on valves for a good seal, also used with all JIMS ® lapping tools. Available in 2 grits – for roughing-in and finish work. Use on JIMS tool No. 96710-TL and 96740- 36. No. 1083 - 16 oz Coarse 220 Grit (Micron finish of 32). No. 1084 - 16 oz Fine 320 Grit (Micron finish of 16).

13

2

1

3

PINION BUSHING LINE REAMER TOOL Use to line pinion bushing in cam cover from right case race. The finest precision line reamer available. For more details see No.94805-IS instructions. No. 94805-57 - Use on all Big Twin 1954-99 single cam only, ( NOTE: Includes aftermarket motors, also XL 1957 to early 1984 idler gear bushing). PARTS AVAILABLE SEPARATELY NO. QTY. DESCRIPTION PART NO. 1 1 REAM 94805-57-1 2 1 PILOT 1-3/4” 94805-57-2 3 1 PILOT 1-3/8”/ 1-1/2” 94805-57-3 4 1 INSTRUCTION SHEET 94805-IS

170