Thread: Questions about s1

Originally Posted by Busted Syncro

G'day all;
I went a different way regarding speedos. My 2A is fitted with 7.50 tyres and like all mechanical speedos oscillates around the speed +/-.
I fitted a GPS speedo made by Hummingbird model HMSS1000B ($330). I choose the Bulkhead antenna because I had a suitable hole aready in the roof but they have an internal antenna model as well. Accurate to +/- 1Km.
My thinking was, one fine for a 40Km school zone is over $300 and speed camera cars only allow a small margin of over speed.
Now I know how fast I'm going!!!!
Best Regards Chris

The only speed cameras I'm worried about are the ones in the M5East (under my house), Sydney Harbour, Eastern Distributor and Land Cove tunnels.

How accurate are your GPS speedos in that type of location?

Imagine getting a speeding fine in a 50+ year old car! [/QUOTE]

I am sure I will get a fine with the motor done now it really surprises people

I have a rather unique way of calculating speed in my S1. A bit anal maybe, but it works for me

My speedo reads about 10 mph faster than actual speed, as checked against a GPS. I worked out that if I multiply the number on the speed sign by 8 it "roughly" works out to my speedo sign in mph.

As said, it works for me.

Perry

what is it with the speedo flapping about so much? Does it need adjusting or is that just the way it is? I recently picked up a series 3 which was the first road driving one I have owned and the needle was flapping about within 10mph.


cheers,


D

Originally Posted by Dark61

what is it with the speedo flapping about so much? Does it need adjusting or is that just the way it is? I recently picked up a series 3 which was the first road driving one I have owned and the needle was flapping about within 10mph.


cheers,


D

Dust, lubrication, kinks and breaks.

speedo cables are supposed to be regularly lubricated with light machine oil. You can almost guarantee that a S1 speedo hasn't had any maintenance for decades. Ideally you should take the cable out, withdraw the inner from the outer and wash both in petrol. Inspect the inner and outer for kinks, if kinks present or fractures in the inner present you should replace the cable, If all O.K. lubricate the entire length with sewing machine oil insert the inner back into the outer and re-install.

you may also need o lubricate the back of the speedo where the cable enters.

If this doesn't solve the bounce the speedo itself needs a service by an instrument fitter.