Hi when im driving my speedo doesnt work(bounces from 100-120 when i'm doing about 3000rpm in 4th) so i have to try and guess the speed off the revs. how do i go about fixing it
Cheers Zach

I would take the speedo to an instrument repairer and get them to check it over. It may just need a good grease with fresh grease. Mine was doing something similar a while ago. I got my speedo reconditioned by a local bloke and it has been working fine ever since.

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

First place I would look is the speedo cable. If it starts binding it will give you those symptoms.

If you screw it off the back of the speedo you should be able to extract the inner cable and check it. It will probably be greasy. If it shows signs of rubbing or if any of the strands are broken it is probably toast.

If it looks OK give it a light coat of Moly and put it back in and see if that cures your problem.

Pete

Mine's the same, despite new cable - one of those jobs for "one day".
I have no tacho so tend to drive by "noise".

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1969 Mini Cooper S MKII (1330)
1972 Honda 750/4 (his),1976 Honda 400/4 (hers)
1982 Honda CB1100RC (ours)

how do i take the speedo out to be able to fix it

That's nothing to worry about, the speedo is simply showing you that your doing 110km/hr plus or minus 10 km/hr. At least it's not lying like a lot of speedo's do...

no im not im on my learners and doing about 80 because the cars go past me

I would take the speedo to an instrument repairer and get them to check it over.

Great idea!!

It may just need a good grease with fresh grease....I doubt it, the cable might need greasing...but, the instrument itself only needs a very small amount of moly grease.

Mine was doing something similar a while ago. I got my speedo reconditioned by a local bloke and it has been working fine ever since.

Waytago

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"Show me the Mini!"

Need to know which Mini it is?

Pete

its a 1974 clubman s with the 3 gauges check the pictures

It's 30 years since I last pulled the speedo on my Clubman. I can't remember it in detail.

Don't remember it being especially difficult. From memory the front nacelle is held on by clips so it just pulls off and the gauge cluster is held on by self tappers. There is a large electrical connector for the main wiring harness and one or two separate wires for the tach.

Hopefully someone will correct me if any of this is wrong.

Pete

If you prefer to pull the whole lot out of the car, they mount on a bracket attached with 4 nuts on the firewall.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

zach i didnt think learners were allowed to do 100-120 klm

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busier than a 0ne legged man in a butt kicking competion

Hmmm well i was only doing bout 80 i hope but the spedo said 120 so ill take it as 120 although there were cars passing me because a mate reckons it couldnt get over 60k cause he thinks his tough in a 300zx

A Mini with a 3.4 diff and 10" wheels should do about 25-26kmh per 1000 revs so 3000 is only 75kmh if your tacho is reading correctly. Most Clubbies have a diff lower than 3.4 so you should be on the right side of the law.

Pete