Well, for example, my 13BT engine died on me as I was driving down the road. It turned out to be the vacuum shutter valve as the problem. I looked for that in the Ellery Factory Workshop Manual that I own and found (so far) one reference to it. It does not explain what it does and I have yet to find a picture in that book of where the VSV is located. The book gives a description of how to check its function but that's all I found so far.
I only know it is the VSV at fault because of this website/club.
As intend to spend as much time away from computers and internet as possible, I'd like a book that has more information.[/QUOTE
The more you read up up the more the jigsaw come together, eg VSV. Vacum switching valve, there is 3 of them in the 13bt , that I'm aware of , 1, H4 activation, 2, shuts / closes shutter valve on intake, 3, Ac idle up.
N0 2 VSV is what your having issues with, quite common, In my 74, VSV 1 & 3 have been replaced, but not n0 2
Fun & games, the fun is in the diagnosis, the game is repairing it