Speedometer Gear Install

[Destroyer Doug]

My speedometer gear seems to be too long. So a couple of questions... Is the gear supposed to fit all the way into the holder? I'd really have to jam it in and it doesn't seem like it would spin. Can I trim down the yellow tip? Am I supposed to have a shorter stem? In the pictures you can see how the gear fits into the holder and how far I can get it into the trans.

 

[GetX'd]

I'm having similar problems with my speedo. Would like to hear some opinions too.

 

[HT413]

I swapped mine maybe 2 years ago and don't remember having any issue. I wonder if the teeth aren't meshing properly?

 

[miller]

The steel shaft on the gear itself should be straight, and go fully into the housing. Pull the gear back out, and look inside the housing for anything that would interfere with the gear shaft going in.
Did you put a new seal inside the housing? Sometimes, when you put the gear shaft into the housing, the shaft will 'hang' on the seal, and you need to work the shaft end past the seal.
Once in, gear should freely rotate.

Hope this helps.

 

[Badvert65]

What he said. The plastic gear itself should fit up against the holder and spin freely. The one in the photo is not all the way in (gear into holder).

 

[Destroyer Doug]

I've had this problem with a few girlfriends too. The shaft is just too big for the hole. This morning removed the internal gasket and tried again, but it gets hung up on the last bit of thickness before the gear. Goes in fine if I put it into the housing from the speedometer side, but the drive side is too narrow. I don't want to modify the housing so maybe I'll try to sand down the shaft.

 

[miller]

Just polish the shaft.

That internal seal is directional, meaning the sealing 'lip' faces the inside. Is the seal lip flexible? Or hard from age.
Many times, putting those gears in the housing, you have to force feed the end of the gear shaft past the seal lip. Be easy, but rotate and push, until the shaft slips in, or use a pick to help get past the seal.

 

[Destroyer Doug]

I got another housing off eBay and the gear slid right in.