We're just about ready to order some gauges. Greengauges list a "Quenched Oscillator Speed Sensor" for input directly from the gearbox. does anyone have experience of these or know if they require any extra adaptor for a Type 9 gearbox?
We've phoned and e-mailed both Greengauges & Speedycables but neither of them seems interested in giving any help - in fact they've both been about as much use a chocolate fireguard up to now.

Hi Geoff.
You're only round the corner from me!
I had no help from them either.
You need to decide if you are going to use a mechanical or electronic speedo. Personally I'd go for the electronic one as it is easy to calibrate and there is no stupid cable floating aorund and being awkward to fit and dependant on wheel size etc.
Pat...

Hi Geoff

Where abouts in Wakefield are you. I am in Kirkhamgate.

Carl

Hi Carl,

Sandal, just a couple of hundred yards from the castle (ruin not pub - that's a bit further)

Geoff.

i have a type 9 out of a grandad injection
its fitted with a electronic sensor so first i would check your box to see if its cable or electronic
ps i think the cable type is more common tho
cheers dave

Our last e-mail obviously shook the speedycables tree hard enough!!

Reply today - yes they do supply an adapter to use the Greengauges "Quenched Oscillator Speed Sensor" with the Type 9 box. A more elegant, if slightly more expensive, solution than sticking magnets on the prop shaft I hope.

Geoff.

Sounds very much like a powered type sensor.

Could be a free running frequency oscillator which is "quenched" i.e. a damped pulse, when a magnet or metal part passes by. Probably similar to the Hall effect version where the front disk bolt heads are used as a reference.

Just a guess.