Quick Easy 944 Odometer Question
#1
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Quick Easy 944 Odometer Question
My odometer doesn't work but the speedometer does. I checked the odometer gears and they look fine. Could the Speedometer Impulse sender on the transaxle cause the odometer not to work?
#3
Hey Man
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Here's the fix:
Odometer Repair
#4
Three Wheelin'
The only cause of odometer failure if the speedo is working is mechanical failure in the speedo/odo unit. You will need to check all of the gears. You can spin the gears with the speedo disassembled and work out where the problem is.
#5
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It can't. When the solenoid is engaged, it pulls the shaft with the digit driving gears away from the digit cluster. There's no strain on the gears with the reset button engaged. Every one that I have seen fail has been because the one gear has deteriorated and falls apart.
#6
It can't. When the solenoid is engaged, it pulls the shaft with the digit driving gears away from the digit cluster. There's no strain on the gears with the reset button engaged. Every one that I have seen fail has been because the one gear has deteriorated and falls apart.
I think thats just when many people notice it because they then are focused to the odometer, probably like that for miles before.
#7
FYI - Many times the gear has pushed(moved) slightly on the shaft not allowing it to engage the other gear. It looks good at first glance but look close and you will see.
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#8
Hey Man
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It can't. When the solenoid is engaged, it pulls the shaft with the digit driving gears away from the digit cluster. There's no strain on the gears with the reset button engaged. Every one that I have seen fail has been because the one gear has deteriorated and falls apart.
#9
Drifting
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Porsche changed the design of the speedometer in (I think) '89 and it doesn't look anything like it did. It doesn't have the problem with the odo gear. I'm running the newer assembly in my '87 housing without issue.
The writeup at Clarks is ok, but it is severely lacking in detail (and pictures). At one point I started to document it, but I never finished. The hardest part of the whole thing is removing the needle without damaging it, the shaft and/or the movement. Personally, I think it should be done professionally so it won't get damaged and can be re-calibrated after the repair.
#10
My car is a '90 and I had to replace the gear also. So I don't think they changed that gear in '89. It also has happenned right after I pressed the reset button. Teeths were missing on the gear.
#11
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I happen to have my dash apart right now (prepping for windshield #4). I was planning on taking the bezel off the cluster to inspect the light tunnels. If I get to it, I'll take a picture of the speedometer I'm using so you can see the difference and I'll look for a date code.
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