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200 Series General Forum for the Volvo 240 and 260 cars |
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May 2nd, 2022, 17:56 | #1 |
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Clock
Clock working but losing time...
Newly acquired '85 240 so not sure for how long. Assuming there have been no power outages, does anyone have any ideas why, please? Pic attached- appears to be standard product. Thanks
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2009 XC70 D5 AWD, yummy... 1985 245 silver coffin nose GL recently sold 2009 V70 2.4D (163 manual) 2005 V70 SE 2.4 (170 auto), 2000 V70 SE 2.4 (140 manual) 1992 245 Torslanda, 1990 245 GL, 1993 440 Li |
May 2nd, 2022, 19:15 | #2 |
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How long since you last checked? Clocks (should have) gone forwards an hour at the end of March; An unadjusted clock will be showing an hour behind.
Easy to forget nowadays when everything electronic auto-changes or uses radio time signals. |
May 2nd, 2022, 19:49 | #3 |
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Thanks for the suggestion. Car purchased last Thursday (post GMT) and clock time reset twice since!!
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2009 XC70 D5 AWD, yummy... 1985 245 silver coffin nose GL recently sold 2009 V70 2.4D (163 manual) 2005 V70 SE 2.4 (170 auto), 2000 V70 SE 2.4 (140 manual) 1992 245 Torslanda, 1990 245 GL, 1993 440 Li |
May 2nd, 2022, 21:10 | #4 |
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Oh well, worth a check.
Obvious things first: 1. Almost flat battery. 2. Corroded connections on the back of the clock. 3. Dry solder joints where clock wires connect to instrument cluster circuit board. 4. Voltage stabiliser module in instrument cluster not working. 5. Dodgy clock. No. 1 should be obvious, 2 you'll have to remove.the clock, 3 & 4 involve removing the instrument cluster (so a good time to replace blown dash bulbs and fix the odometer, if someone has pressed the reset button whilst in motion...). 5 is unlikely, but possible. |
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May 4th, 2022, 10:32 | #5 |
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This is from memory:~ ('88 240)
The square clock facia just clips on and is easily pulled away with care. The clock body is a push fit into its holder (4 rubber buffer- mind they don't drop out) The loom running to the clock is quite short and has a connector into the main wiring, as mentioned above I would check these connection first- the bulb is also a push fit and easily checked/changed. Bob. |
May 4th, 2022, 19:58 | #6 | |
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Quote:
I think I know the score- Looking at the "time loss", the clock works when using the car (ie, keys in ignition etc). The clock works OK when the car is driven. It shows the incorrect time when the car has been left and then used the next time.. The previous owner plumbed in a "retro" radio" and I couldn't follow the on/off instructions in the manual as the controls didn't respond- Turns out the rad comes on when the key is turned on and vice versa (no independent on/off). I suspect the clock only works when the keys are in too (you never know what previous owners tinker with until...). I'll investigate in due course. Dave
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2009 XC70 D5 AWD, yummy... 1985 245 silver coffin nose GL recently sold 2009 V70 2.4D (163 manual) 2005 V70 SE 2.4 (170 auto), 2000 V70 SE 2.4 (140 manual) 1992 245 Torslanda, 1990 245 GL, 1993 440 Li |
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May 5th, 2022, 20:56 | #7 |
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An alternative scenarion
Just a thought - should the radio have pre-sets on it that it loses?
I suspect that the radio installer has taken a feed from the clock's fuse and swapped the clock feed to an ignition- or accessory-live circuit. Most radios have two 12v + supplies - one from a permanently-live feed such as the clock and the other from a controlled (accessory or ignition) feed. I'd look at the fuseholder cover to see which fuse the clock is supposed to use and trace the wiring from the clock back to the fuse it's currently fed from then reconnnect it to the correct fuse.
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loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4. |
May 5th, 2022, 21:07 | #8 | |
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Quote:
Went out to play today- pre-set for default radio stn ("Wireless 4") was extant first thing, but clock showing time of previous use (couple of days before).... re-set time at roughly 15:45 this afternoon and checked at 20:45 tonight and.... clock showing, more or less, correct time (20:50). Curious! Probably worth a dismantle and clean as a starter for ten regardless of potential wiring weirdness. Thanks for the suggestions.
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2009 XC70 D5 AWD, yummy... 1985 245 silver coffin nose GL recently sold 2009 V70 2.4D (163 manual) 2005 V70 SE 2.4 (170 auto), 2000 V70 SE 2.4 (140 manual) 1992 245 Torslanda, 1990 245 GL, 1993 440 Li |
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May 6th, 2022, 08:17 | #9 | |
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Then again, it might be that the gremlins have decided that they've had enough fun and done enough damage to your blood pressure for the time being!
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loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4. |
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