Used: Lucas W14 Wiper Motor with MGB Flex Drive and Tubes (EBay $49.00) New: 90 degree gearwheel, rubber mount and mounting strap (www.s-v-c.co.uk $33.00) Headlight Switch (Moss Motors $36.99) Lucas Two-Speed wiper motor plug (www.britishwiring.com $4.00) Two 12 Volt DC 40 Amp Five-Blade Micro-Relays with sockets (Amazon $8.30) Six #10 (¾” long hex-head) sheet metal screws for mounting plate; Two 1/4” (¾” long) bolts with nylon lock nuts for motor mount strap; Two 1/8” (½” long) bolts with nylon lock nuts for relays; Sixteen metal flat washers; Sixteen rubber flat washers - all washers should fit ¼” bolt ($9.89) One 6” x 18” (16 Gauge) steel sheet (Home Depot $7.15) Cost (not including shipping): $148.33 Suggested reading for an intro into what’s involved: Barney Gaylord’s MGA Tech Pages “TWO SPEED WIPERS With Relays” at: http://mgaguru.com/mgtech/electric/et219.htm and “TWO SPEED WIPERS With Relays, Installed” at: http://mgaguru.com/mgtech/electric/et219a.htm Colin Firth’s “CONVERTING THE MGA WIPERS TO 2-SPEED” at: https://www.mgcc.co.uk/mga-register/wp-content/uploads/sites/22/2013/12/Safety-Fast-2-speed-wiper-article-updated-version-dec-13.pdf - (0.6-MB pdf file)

MGA Two Speed Wiper Motor Mounting Plate Dimensions












On 7/18/2021, John Casey wrote:
Wanted to provide an update to my mounting plate schematic. There was an error in the hole size for mounting the plate (correct is 1/8" vice 1/4") and I removed the cutouts for accessing bolts on the back since using #10 sheet metal screws has proved successful for many years of operation.