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SOHC.co.uk Forums => CB500/550 => Topic started by: wolfheze on September 14, 2015, 01:30:02 PM

Title: Refurbished speedo
Post by: wolfheze on September 14, 2015, 01:30:02 PM
Hi.
My recently refurbished speedo suddenly developed an area of condensation on the inside of glass /perspex while out riding. By the time I had got home it had evaporated away but the needle had at certain speeds begun to bounce a little. Does the damper contain a fluid which would have caused this had it leaked?
Title: Re: Refurbished speedo
Post by: Trigger on September 14, 2015, 01:38:25 PM
The damper has oil, so would not cause condensation. I had a clock like this once, had a small bit of moisture and at night with the lights on, the bulb would cause the water to heat and create condensation. cured it by taking out the bulb holders and heated it with a hairdryer.
Title: Re: Refurbished speedo
Post by: philward on September 14, 2015, 10:58:27 PM
I had the same problem that had never happened previously - wasn't even damp. I cured it the same way as Trig did - has not come back to date.
Phil
Title: Re: Refurbished speedo
Post by: AshimotoK0 on September 15, 2015, 09:23:37 AM
Damper has silicone oil so not the source of the condensation. You see the oil on some gauge faces, when the gauge has been incorrectly stored for a period, face down
+1 on the hairdryer/heat gun.
Title: Re: Refurbished speedo
Post by: royhall on September 15, 2015, 10:31:01 AM
My 750 speedo is off to Peter soon as its lost its damping oil and is all over the place. The oil must have gone into the speedo case when it leaked out and I have no condensation problems, so it cant be that.
Title: Re: Refurbished speedo
Post by: AshimotoK0 on September 15, 2015, 12:13:42 PM
My 750 speed is off to Peter soon as its lost its damping oil and is all over the place. The oil must have gone into the speedo case when it leaked out and I have no condensation problems, so it cant be that.

Hope its 'our' Peter, Roy and not the one with the same surname as the Paddington bear author  ;)
Title: Re: Refurbished speedo
Post by: Lobo on September 15, 2015, 12:26:45 PM
Whilst on the subject of 'our Peter' I just want to publically say a big thanks to him for the brilliant work he did on my 2x 400F + 1x Fizzy gauges restorations. Yes I've had a go & done an ok job previously, but couldn't zinc plate the bases  / paint the bodies such as Peter does. As for tackling the Fizzy crimp ring... I hadn't the proverbial hope in hell.

He did some other non-gauge work for me, which I'll not advertise as think it was more a one-off; again fantastic, thanks Peter.

Simon
Title: Re: Refurbished speedo
Post by: royhall on September 15, 2015, 12:48:19 PM
My 750 speed is off to Peter soon as its lost its damping oil and is all over the place. The oil must have gone into the speedo case when it leaked out and I have no condensation problems, so it cant be that.

Hope its 'our' Peter, Roy and not the one with the same surname as the Paddington bear author  ;)
Kent400 Ash, our top man.
Title: Re: Refurbished speedo
Post by: kent400 on September 15, 2015, 08:46:12 PM
Thanks for the complements chaps but steady on else my helmet won't fit the next time a get out on the 400f or one of the others in the
garage.
Title: Re: Refurbished speedo
Post by: wolfheze on July 04, 2016, 09:58:58 AM
Thought I'd bring this thread back again.Was out yesterday and both clocks were misting up. Sorry for my ignorance but are the speedo and tacho drives from the engine /gearbox? If so is it possible it's condensation travelling up the cables?
Title: Re: Refurbished speedo
Post by: florence on July 04, 2016, 10:16:30 AM
Damper has silicone oil so not the source of the condensation. You see the oil on some gauge faces, when the gauge has been incorrectly stored for a period, face down
+1 on the hairdryer/heat gun.

rushes to check pile of old clocks to see which way most are facing !!
Title: Re: Refurbished speedo
Post by: wolfheze on July 04, 2016, 12:54:08 PM
The clocks have been back on the bike for over a year now and don't mist up until I have done a few miles.
Title: Re: Refurbished speedo
Post by: RGP750 on July 04, 2016, 03:09:09 PM
Peter "Kent400"
Where in the "garden of England are you", I may have some 175 clocks for you to look at
if you can. Rich in the "Garden of England
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