Odometer gear fix / replacement

[8bender]

Hi guys


I just found out on my 1984 928S that the reason that my odometer isn't working is because that the brown gear is broken
My mechanic took took apart the cluster so everything is out now
My question is if I should replace the other gears also while everything is apart ( they seem ok and speedometer is working fine )
Also where can I get these gears ?

THANK you very much guys

[MPDano]

Porsche Odometer Speedometer Repair Gears - Rennbay - Porsche 944 ball joints, power steering, brakes, odometer gears & accessories

$27.50

Only that one gear disintegrates itself.

[8bender]

Thanks

[Mrmerlin]

after you get the new gear make sure to inspect it carefully as their can be flash on the teeth,
if there is,
the speedo will jamb and then the job will have to be done again,
this time to file the gear teeth down

[DougM]

Odometer Gears - Porsche - 928 77-95

these guys have been around a long time selling these

[8bender]

Bought the gear from them
Thanks guys

[tmpusfugit]

As Stan suggested above it pays to carefully inspect the new gear for flashing...BUT, there is more to be on the look out for when the work is done. 1) look for and remove any protruding flashing on the side of the gear 2) make certain the gear is not too long on the shaft causing the gear to bind up when the "e" clip is installed. 3) make certain the gear is not tight on the shaft which will also bind it up 4) make certain the new gear does not bind on the worm gear on the motor (this is caused by the new gear being slight larger in diameter than the old gear) I have seen all these problems on replacement gears and I have replaced less than a dozen of them. Who ever originally built the clusters for Porsche was not particularly careful about tolerances over time. There are differences from cluster to cluster and there are differences in the replacement gears in sizes, finish, and fit too. There are several people selling the replacement gears and THEY DIFFER from each other. I have gotten the gears from 3 different sources and I don't remember who supplied the ones that fit best....all of them need to be carefully inspected. Otherwise, you will be paying your mechanic to R&I the pod more than once.....these problems are not easily found, on my first drive gear replacement I think I had the pod in and out maybe 4 or 5 times before I got it "right". But, going to school I rode the short bus.....

[8bender]

Issue was fixed

Thanks guys