"...take a look at the speedo drive they are only clamped and can become loose giving the symptoms described." Speedo drive clamp: right, yes, good one, must have a look. Ta!

I looked up the Sloper; nice! 70-75mph in 1929?!?!? The same cousin as loans me this Landy has a 1932 Koehler-Escoffier 350 bike and I'm sure full advance will be 30 to 40 on that too, but not at start up! Try kicking your 500 cc sloper with the ignition at 35! I can't see how this Landrover...

Yeah, tell him to have his speedo recalibrated back to the original Gregorian Calendar and the device will predict his journey time accurately, right down to the exact week. I'm a school lab technician so I have a couple of unwanted old 4mm jack-plug sockets from broken physics power packs. I'd...

Intelligent suggestion, especially as I was coaching my cousin, whose Landy it is, to put the Range Rover diffs on for better economy. 4.7/3.54=1.33 so a tad higher than my correction of 1.211. I think the history of the car would make it unlikely to have been altered. Also, the speedo is out by...

Ha!!! Just achieved the best instant fuel economy improvement you'd believe on the way back from work. +21.1% just like that! What did I do? Calibrated the odo. I read the trip over 12.8 miles but Google maps says I did 15.5. Plus the latest tank of petrol, over 179 miles, on my new odd...

Interesting, Simon. I measured the whole curve and although the advance was all in at around 4000rpm, I had 23 deg max advance so with 18deg static I'd be spot on your 40degrees, just 500rpm earlier. I checked the timing marks, and with number one pot on compression when the points part the...

Been trying to sort my cousin's 2.25 petrol S3 Hi-cap regarding longstanding ignition oddness. Last time I borrowed his truck it was horribly thirsty; it does 14mpg tank after tank, carefully checked, wherever I drive it and I'm usually quite a good eco-driver. Good power though and sweet...