Has anyone had any succes re-winding a burnt out gauge?
Edited by hanra, 17 April 2017 - 03:19 PM.
Voltmeter internal resistance.
Started by
hanra
, Apr 17 2017 03:11 PM
16 replies to this topic
#1
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 17 April 2017 - 03:11 PM
Does anyone have an LH/X instrument cluster out of a vehicle and could measure the resistance of the voltmeter windings around the bi-metalic strip. Marked Black & Pink on the back of the housing. The other 3 gauges are about 13ohm from memory but the voltmeter is obviously not a 5v needle.
Has anyone had any succes re-winding a burnt out gauge?
Has anyone had any succes re-winding a burnt out gauge?
#2
_hutch_
_hutch_
-
- Guests
Posted 17 April 2017 - 04:40 PM
Hmmmmmm there is a formular to work the resistance of the multiplier,I might have it in my apprenticeship workbook,it's been 45 years since I done this stuff
#3
fuzzypumper
-
- Members
-
- 929 posts
Forum Fixture
- Name:Archie
- Location:Melbourne Eastern
- Joined: 30-December 06
Posted 17 April 2017 - 05:39 PM
measured my one . its around 54 ohms.
Edited by fuzzypumper, 17 April 2017 - 05:40 PM.
#4
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 17 April 2017 - 06:10 PM
Thanks mate.
I guess I'll need to know the gauge, length and resistance of the nichrome wire to get it working accurately again.
I've unwound the old burnt wire off. It's not broken but the insulation has burnt off the majority of it.
I guess I'll need to know the gauge, length and resistance of the nichrome wire to get it working accurately again.
I've unwound the old burnt wire off. It's not broken but the insulation has burnt off the majority of it.
#5
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 17 April 2017 - 06:49 PM
#6
fuzzypumper
-
- Members
-
- 929 posts
Forum Fixture
- Name:Archie
- Location:Melbourne Eastern
- Joined: 30-December 06
Posted 17 April 2017 - 08:19 PM
How long does that wire measure once unwrapped?
#7
grumpy xu1
-
- Members
-
- 2,809 posts
Lotsa Posts!
- Name:Gary
- Location:Queensland
- Car:lj xu1
- Joined: 01-February 10
Posted 17 April 2017 - 09:00 PM
The guy at Automotive power & electronics north Rockhampton did some slr gauges for me years ago, he was good & fair on price. Gary.
#8
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 18 April 2017 - 07:41 AM
Is your gauge working? Another guy has measured his and its 360 ohms working fine.measured my one . its around 54 ohms.
#9
VDO
-
- Members
-
- 187 posts
Forum Member
- Name:Chris Curtis
- Location:Brisbane QLD
- Joined: 17-September 14
Posted 18 April 2017 - 08:09 AM
I've rewound shiploads of these, no problem.
The VDO Voltmeter windings wire resistance is 351 ohms.
Edited by VDO, 18 April 2017 - 08:10 AM.
#10
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 18 April 2017 - 08:15 AM
Thanks Chris, your a champ. What gauge nichrome wire do you use when rewinding? Can you suggest a brand/gauge to use?
#11
VDO
-
- Members
-
- 187 posts
Forum Member
- Name:Chris Curtis
- Location:Brisbane QLD
- Joined: 17-September 14
Posted 18 April 2017 - 08:28 AM
To be honest, I've never measured the gauge or the length as it comes from the supplier already cut to the correct length/impedance.
How about I just send you one..?
PM me your details and it will be done.
#12
hanra
-
- Members
-
- 10,831 posts
Oh My, Don't you post alot
- Name:Brad
- Location:Farrrrrr North Qld
- Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
- Joined: 24-March 11
Posted 18 April 2017 - 08:42 AM
Hi Chris!
Sounds brilliant! PM Sent.
Thanks!!
Sounds brilliant! PM Sent.
Thanks!!
#13
fuzzypumper
-
- Members
-
- 929 posts
Forum Fixture
- Name:Archie
- Location:Melbourne Eastern
- Joined: 30-December 06
Posted 18 April 2017 - 06:43 PM
Yeah sorry i still had the can regulator connected. it was throwing the reading off
I got 330 ohms.
Is your gauge working? Another guy has measured his and its 360 ohms working fine.
#14
_Bomber Watson_
_Bomber Watson_
-
- Guests
Posted 18 April 2017 - 06:47 PM
The guy at Automotive power & electronics north Rockhampton did some slr gauges for me years ago, he was good & fair on price. Gary.
VDO shop on Farm street or similar? Somewhere in the Kawana area?
Pretty sure thats the guy who redid my GTR dash for me.
#15
grumpy xu1
-
- Members
-
- 2,809 posts
Lotsa Posts!
- Name:Gary
- Location:Queensland
- Car:lj xu1
- Joined: 01-February 10
Posted 18 April 2017 - 07:01 PM
I think he's around farm street bomber roughly. Been a long time, but he was very helpful & easy to deal with. Gary.
#16
_Bomber Watson_
_Bomber Watson_
-
- Guests
Posted 18 April 2017 - 07:50 PM
I was way off, Main street Park Avenue.
Been 11 odd years since I was there hahaha.
https://www.trueloca...ics/park-avenue
#17
grumpy xu1
-
- Members
-
- 2,809 posts
Lotsa Posts!
- Name:Gary
- Location:Queensland
- Car:lj xu1
- Joined: 01-February 10
Posted 18 April 2017 - 08:00 PM
Longer than that for me. Thanks for that though. Gary.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
