Dim Guage lights |
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Dim Guage lights |
Fyrmdk914 |
Nov 16 2006, 08:29 PM
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#1
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Newbie Group: Members Posts: 27 Joined: 12-November 06 From: San Diego Member No.: 7,203 |
Its me again with another question! The dash lights on my 75 1.8 are very dim, and I am using this car as a commuter. Once a week, I drive 120 miles to work, and back. About half freeway, and half swoopies and twisties through the southern california mountains. Yay! Back to my question, the guage lights in the speedo, tach, and fuel guages all work, however they are so dim that you cant really see the guages. Is it time to clean the connections, disassemble the guages and clean the lights, or replace the guages. I realize that each car is different, but what is the most common problem? Thanks...
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turboman808 |
Nov 16 2006, 08:34 PM
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#2
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Advanced Member Group: Members Posts: 2,718 Joined: 31-January 06 From: North Jersey Member No.: 5,505 Region Association: North East States |
Might want to replace the bulbs with the white leds. Works pretty good.
If it is a wiring problem then maybe the headlight knob needs to be replaced or cleaned. |
type47 |
Nov 16 2006, 08:38 PM
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#3
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
the knob turns to control brightness. i suspect that on a 30 yr old car, the coils on the light know develop a "hot spot" and may burn or corrode making a larger resistance and dimming the gauge lights or forcing the knob to be turned off the hot spot to a dimmer position on the rheostat. i made mine brighter by rotating the know and i suspect i cleaned the rheostat slightly. you could try cleaning the connections for the dim control or, as suggested, install a higher wattage bulb (if you can find them)
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So.Cal.914 |
Nov 16 2006, 08:40 PM
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#4
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
Not to be insulting but have you checked to see if they are turned down? Try
turning the headlight switch. Clean the grounds One under the dash above the fuse panel one is connected to the groundstrap of the battery and one at the tail of the tranny. All three are studs with a nut that are connected directly to the body. If that does not take care of it clean connectors at the guages and clean the sockets, check if all the bulbs are working. You don't need to replace the guages. |
mihai914 |
Nov 16 2006, 08:49 PM
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#5
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Senior Member Group: Members Posts: 800 Joined: 2-March 05 From: Montreal, QC Member No.: 3,697 Region Association: None |
After 30 years of service, even if the bulbs are still working, they have probably developped a burnt area (black film on the glass). Simply buying some new OE type bulbs will make a huge difference.
I agree that LEDs give a better output than the original bulbs but incandescent light spreads better and works better with the design of the VDO gauges. |
Grelber |
Nov 16 2006, 08:50 PM
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#6
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Insert favorite Don Rickles joke here. Group: Members Posts: 690 Joined: 30-May 06 From: McKinney, Texas Member No.: 6,107 Region Association: Southwest Region |
On mine, you couldn't see a couple of the lights when on. I checked them, and they worked fine when out. Put them in, and you couldn't see them. Come to find out that the inside of the lenses were really dirty. Cleaned the lenses, and the lights worked fine.
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Fyrmdk914 |
Nov 17 2006, 09:21 AM
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#7
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Newbie Group: Members Posts: 27 Joined: 12-November 06 From: San Diego Member No.: 7,203 |
Thanks to all for the input. Yes I have turned the knob, and they do dim even further, they just don's get very bright. I have a replacement dash piece that I intend to install next week when I am on vacation. So, I will try all of your suggestions at that time!
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Spoke |
Nov 17 2006, 10:02 AM
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#8
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
The PO on my 71 bypassed the dimmer on the headlight switch and my gauges are nice and bright. Also replaced all of the bulbs when I bought the car. On my 74, the dimmer is still in the circuit and the gauge lights are very dim when on the brightest setting.
Spoke |
Dave_Darling |
Nov 17 2006, 01:38 PM
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#9
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Clean the connections and replace the bulbs; chances are good that you'll have a significant improvement in the light output.
--DD |
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