Front Seat - Excessive Movements
84jaguar01March, 1984
ITEM: J84/07
SUBJECT: FRONT SEAT RUNNER FIXINGS
MODEL: XJ6
Where excessive front seat movements is causing concern, and in view of the fact that most Dealers may not have the pneumatic riveting equipment for replacing the rivets, the following method may be used for replacing loose rivets with bolts.
METHOD OF RECTIFICATION - ELECTRIC SEATS
1. Release screw from front of seat cushion, remove cushion.
2. Release adjuster tensioning spring, remove four bolts securing seat runners to rise and fall assembly, remove seat assembly.
FIGURE 1:
3. Place seat assembly on a suitable surface which will not damage the soft trim, drill out the pop rivet from the front inboard seat runner to seat frame mounting using a 1/4" drill. NOTE: Seat illustrated is right side.
4. Discard small angle bracket assembly (BAC-2874-5) and distance washer (BAC-3329) open hole out to 11/32".
5. Insert 5/16" X 11/2" U.N.F. pan head setscrew through seat runner into frame, secure using 5/16" U.N.F. nyloc nut. ("A" Fig. 1)
6. Drill out pop rivet from front outboard frame mounting.
7. Discard distance washer (BAC-3329) and open hole out to 11/32".
8. Insert 5/16" X 11/2" U.N.F. hexagon head bolt through runner into seat frame, and secure using plain washer and nyloc nuts. ("B" Fig. 1)
FIGURE 2:
9. Replacement of the rivets at the rear of the seat assembly will necessitate the drilling of new holes forward of the originals. Mark out and drill as indicated in Fig. 2.
NOTE: It is essential that the holes are drilled exactly central between point Y and Z on Fig. 2. Failure to do so will cause bolt head X to foul the seat runners. Bolt head is shown in exact position to avoid fouling runners.
FIGURE 1:
10. Insert 5/16" X 1-1/2" U.N.F. hexagon head bolts, plain washers and nyloc nuts. Do not tighten. ("B" Fig. 1)
11. Drill out pop rivets and discard distance brackets (BD-46429). Tighten bolts.
NOTE: All bolts to be tightened to 14/16 ft.lbs.
FIGURE 3:
12. Three of the bolts which have replaced the pop rivets are now protruding through the top of the seat frame. To enable the seat cushion to fit correctly, three 0.875" clearance holes must be drilled into the seat pan. Dimensions for this operation are shown in Fig. 3. However, as there may be a difference in seat pan dimensions, it will be necessary to mark up hole positions in the seat pan and then place the cushion into the frame to check the markings prior to drilling.
NOTE: The drillings at the rear of the seat pan will necessitate some alteration of the trim.
METHOD OF RECTIFICATION STANDARD SEATS
1. Release screw from front seat cushion, remove cushion.
2. Release adjuster tensioning spring, remove four screws securing seat assembly to floor, remove seat assembly to floor, remove seat assembly from car.
3. Place seat on a suitable surface which will not damage the soft trim. Drill out four pop rivets from seat runner to frame mountings using a 1/4" drill.
4. Open holes out to 11/32".
5. Insert 5/16" X 5/8" U.N.F. bolts through runners into frame brackets, add spring washers and plain nuts. Tighten to 14/18 ft.lbs.
PARTS REQUIRED
Electric
1 off-5/16" X 1/2" U.N.F. Pan Read Screw SE-605041
3 off-5/16" X 1-1/2" U.N.F. Hexagon Head Bolts GHF-104
4 off-5/16" U.N.F. Nyloc Nuts GHF-272
Standard
4 off-5/16" X 5/8" U.N.F. Hexagon Bolts SH-605051
4 off-5/16" U.N.F. Plain Nuts NH-605041
4 off-5/16" Spring Washers GHF-332