 Odometer not working BUT trip reset does ? |
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| Literati914 |
 Aug 2 2025, 01:26 PM
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#1
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Advanced Member  Group: Members Posts: 2,087 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region  |
Can the TRIPmeter cable still run through the reset procedure - in order of 0000 to 1111 to 2222 to (and so on), if the toothed gear for the ODOmeter has come loose?
This is the situation I currently have. Speedometer works, Odometer does not, trip is also not counting - but trip cable turns the 4 digit gears thru the range. I'm trying to figure out if it's just a cable attachment issue before pulling the gauge and breaking it all apart AGAIN. |
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| fixer34 |
Aug 2 2025, 02:46 PM
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#2
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Senior Member Group: Members Posts: 1,325 Joined: 16-September 14 From: Chicago area Member No.: 17,908 Region Association: Upper MidWest 
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QUOTE(Literati914 @ Aug 2 2025, 02:26 PM)  Can the TRIPmeter cable still run through the reset procedure - in order of 0000 to 1111 to 2222 to (and so on), if the toothed gear for the ODOmeter has come loose? This is the situation I currently have. Speedometer works, Odometer does not, trip is also not counting - but trip cable turns the 4 digit gears thru the range. I'm trying to figure out if it's just a cable attachment issue before pulling the gauge and breaking it all apart AGAIN. If I recall, the trip works off the odometer gear lowend with a forward-only ratchet mechanism. The reset shaft drives the trip gears directly. So yep, get to pull it out and apart...  |
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| Literati914 |
Aug 2 2025, 03:13 PM
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#3
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Advanced Member Group: Members Posts: 2,087 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
QUOTE(fixer34 @ Aug 2 2025, 03:46 PM) If I recall, the trip works off the odometer gear lowend with a forward-only ratchet mechanism. The reset shaft drives the trip gears directly. So yep, get to pull it out and apart... I was afraid of that, thanks. |
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| mepstein |
Aug 2 2025, 03:22 PM
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#4
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914-6 GT in waiting Group: Members Posts: 20,043 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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If you don’t want to diy, John Bell/JBell is the guy to use.
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| emerygt350 |
Aug 2 2025, 04:49 PM
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#5
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Advanced Member Group: Members Posts: 3,179 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Super easy and fun to do. One of those satisfying jobs well worth doing yourself.
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| 914sgofast2 |
Aug 2 2025, 04:53 PM
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#6
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Senior Member Group: Members Posts: 761 Joined: 10-May 13 From: El Dorado Hills, CA Member No.: 15,855 Region Association: None |
To answer your original question, the trip reset can change the trip odometer back to all zeros. The problem I have found is NOT that the odometer's drive gears are loose on their axle, but that the axle itself has worn the holes in the speedometer arms which support the axle oblong to such an extent that the odometer gears don't mesh with the gear driven by the speedometer cable. I have found this problem on at least 4 used speedometers over the past few years. Not once have I found a loose speedometer drive gear which is not firmly attached to its axle shaft.
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| dtmehall |
Aug 2 2025, 04:57 PM
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#7
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Member Group: Members Posts: 144 Joined: 21-December 23 From: Farmington Hills, Michigan Member No.: 27,808 Region Association: Upper MidWest |
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| Literati914 |
Aug 2 2025, 08:03 PM
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#8
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Advanced Member Group: Members Posts: 2,087 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
QUOTE(914sgofast2 @ Aug 2 2025, 05:53 PM) .. Not once have I found a loose speedometer drive gear which is not firmly attached to its axle shaft. Yea I got mine open today and the gear was not loose.. the screw-like "worm gear" (that gets turned by the cable), was just kind of stuck. I was able to clean it a bit, lubricate it and work it back and forth to loosen it up. All good now. |
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