Thanks, Robbie.
I've now ordered the Lucas SQB119 from Bowers in the UK. Here's a note I've just received from a local person who is familiar with British electrics. I had sent him a photo showing the stalk for the horn/dim/signals switch located on the right hand side of the steering colum of my LHD 1986 Plus 4. Regarding his P.S., I had mentioned to him that the switch doesn't return to neutral without some jiggling after moving the stalk to signal a right hand turn.
"First thing I noticed from your photo is that your column switch is on the right side of the steering column. That is very odd (to me). On any left-hand drive Little British Car I have seen, this switch is always on the left side of the column.
That indicates to me that your SBQ119 column switch is actually for right hand drive cars. I googled your switch, and found an E-Bay posting. Their list of vehicles that use this particular switch includes only R.H.D. British-market cars.
What is the difference? The only thing I can think of, is if it were on the other side of the column, the horn symbol would be upside down. Lucas must have made separate horn buttons for LHD and RHD switches.
To make this long story short, I think you are safe to order this switch. P.S. You might want to inspect the metal cam (usually a spring clip), that cancels the turn signals, on your steering column. Sometimes they get bumped out of whack."
