New Port Engineering - DRILL JIG INSTRUCTIONS

DRILL JIG INSTRUCTIONS
CLEAN WIPE SYSTEM
1940-47 FORD TRUCKS

Warning: Installation of the Clean Wipe System requires drilling a hole for the passenger side wiper transmission and enlarging the hole for the drivers’ side wiper transmission. If you feel you do not possess the fabrication skills required to perform this procedure please contract a professional street rod shop to install this system in your vehicle. Read these instructions completely before attempting to install the Clean Wipe System in your truck.

General Information
The drill jig plate and drill alignment bushings provide an accurate means of locating the holes in the cowl for the New Port Engineering Clean Wipe System for 1940-47 Ford Trucks.

The drill jig assembly includes the following parts:
See Figure 1.
1 - Drill Jig Plate
2 - Drill Alignment Bushings
2 - 5/16-18 x 11/2 Hex head bolts
2 - 5/16-18 Hex Head Nuts

FIGURE 1

Tools and equipment required: See Figure 2.
1 - 1/8 Diameter Transfer Punch
1 - 5-16 Diameter Transfer Punch
1 - 1/8 Diameter Drill Bit
1 - 5/16 Diameter Drill Bit
1 - Center Punch
1 - Hand Held electric drill
1 - Die grinder or Round File
1 - Scriber
1 - 1/8 diameter round file

FIGURE 2

The drill jig assembly is designed to assist the user in locating the holes in the cowl for the wiper transmission. The drill jig is intended for use in locating the holes. The drill alignment bushings provided are designed to guide the transfer punches, not the drill bit. NOTE: Do not use the drill alignment bushings as drill bushings. NOTE: The drill jig plate should be stamped with an identification number (4047) on the back side of the drill jig plate. See Figure 3.

FIGURE 3

1. Install the drill alignment bushings in the drill jig plate. See Figure 4.
NOTE: When drilling holes in a painted cowl apply layers of masking tape to the drill jig plate to prevent scratching the finished surface.

FIGURE 4

2. Locate the drill jig in the driver’s side wiper motor hole using a 5/16” hex head bolt and nut.
See Figure 5.
NOTE: The locating tab should hook over the windshield rubber recess on both the drivers’ side and passenger side of the cowl.

FIGURE 5

3. Locate the hole for the passenger side wiper transmission using the 5/16” diameter transfer punch.
See figure 6.

FIGURE 6

4. Remove the drill jig plate and drill alignment bushings. NOTE: To insure accuracy in the hole location, enlarge the transfer punch mark with a standard center punch.

5. Drill the 5/16” pilot hole for the passenger side wiper transmission. See Figure 7.

FIGURE 7

6. Attach the drill jig plate and drill alignment bushings to the cowl using the 5/16” hex head bolts and nuts provided . Position the drill alignment bushing to align the 1/8 diameter holes in the busing and the drill jig plate.

7. Locate the alignment - pin holes using the 1/8 diameter transfer punch. See figure 8.

FIGURE 8

8. Remove the drill jig plate and drill alignment bushings. Enlarge the transfer punch mark with a center punch.

9. Drill the 1/8” diameter alignment - pin holes in both sides of the cowl. See figure 9.

FIGURE 9

10. Remove the drill alignment bushing from the passenger side of the drill jig plate.

11. Attach the drill jig plate to the cowl on the drivers side using the 5/16” hex bolt and nut. Align the drill jig plate on the passenger side using the 1/8’ diameter transfer punch. See figure 10.

FIGURE 10

12. Scribe the outline of the 5/8” diameter hole using the drill jig plate as a guide. See Figure 11.

13. Attach the drill jig plate to the passenger side of the cowl using a 5/16” hex bolt and nut. Remove the bolt and nut from the driver’s side and align the drill jig plate using the 1/8” transfer punch. Repeat step 12 and scribe the 5/8” diameter hole in the drivers side of the cowl. See Figure 12.

FIGURE 11

FIGURE 12

14. Enlarge the 5/16” pilot holes to 5/8” diameter. These holes may be enlarged with a file, die grinder and rotary bit, or by drilling a series of larger holes.
NOTE: Use the file or die grinder to finish the hole to the final size.

15. Remove the material between the 1/8” hole and the 5/8” hole to produce the finished mounting hole. See figure 13.

FIGURE 13

16. You are now ready for the first trial fit of the wiper system in your cowl. See steps 1 - 4 in the Wiper Drive Installation Instructions. The alignment-pin holes must be enlarged slightly and adjusted with 1/8” diameter round file to insure the proper fit of the wiper transmissions.
NOTE: Enlarge the alignment-pin hole carefully, and make several trial fits to insure the wiper transmissions fit the cowl. Adjust the alignment-pin hole until you achieve the proper fit as show In Figure 14.

FIGURE 14