Seat belt Retrofit

Section 0.9

SEAT BELTS

Rear Wheel Arch

Mark off and drill two 11/32 in, (8-73 mm.) diameter holes in the wheel arch from the under side and forward of the centre line as shown in the illustration.

Pass the two bolts attached to the reinforcement plate through the 11/32 in. (8-73 mm.) diameter holes and secure the belt bracket With the plain washer, spring washers, and dome nuts.

Sill

Cut a l-3/8 in. (34-92 mm.) diameter hole in the sill panel forward of the heel board 'Y' and 1-1/2 in. (38-1 mm.) from the floor 'X' also cut two 11/32 in. (8-73 min.) as shown in the illustration.

Insert the sill tapping plate through the 1-3/8 in. (34-92 mm.) diameter hole using the 7/16 in. (11-11 mm.) diameter screw to lift the plate into position. Place a spring washer on a 5/16 in. (7-94 mm.) diameter hexagon head screw and pass it through the cover plate with the register away from the head of the screw and attach it to the sill and tapping plate. Remove the 7/16 in. (11-11 mm.) diameter screw and finally secure the cover plate with the second 5/16 in. (7-94 mm.) diameter hexagon head screw and spring washer.

Cut a 1 in. (25-4 mm.) diameter hole in the sillboard trim as to clear the projection of the mounting bracket, and so coincide with that of the hole drilled in sill panel.

Place the bracket and waved washer, the shouldered distance piece (the smaller diameter of which will slot into the bracket) and plain washer on the 7/16 in. (11-11 mm.) screw provided and screw the assembly into the hole in the sill.

 

Propeller Shaft Tunnel

Cut a 1-1/2 in. (38-1 mm.) diameter hole 1-1/2 in. (8-1 mm.) from the floor 'X' and forward of the heel board 'Y'. Drill six 13/64 in. (5-16 mm.) diameter holes round this hole, equally spaced or a 2 in. (50-8 mm.) pitch circle diameter, as illustrated, using the mounting bracket as a template. From inside the tunnel place the mounting bracket into position and secure it with the six No. 10 U.N.F. pan head screws. The heads of which must be inside the nuts and spring washers inside the car.

Cut a 1 in. (23-4 min.) diameter hole in the carpet on the same side of the tunnel as the seat for which the belt is being fitted. Place the bracket, a waved washer and shouldered distance piece (the smaller diameter of which will slot into the bracket) in the 7/16 in. (11-11 mm.) bolt provided and secure inside the tunnel with the spring washer and nut.

Content and illustrations reproduced from the "Austin Healey MKI Sprite Workshop Manual"

NOTE: The Austin Healey Sprite Service Pars List, published June 1960, does not list any part number for seat belts, so I believe seat belts were a dealer installed extra. G.C.