[Roadsters] Speedometer installation

[MH]

Once upon a time I had a speedo quit working in my 4-speed. I asked myself 
the same questions and checked in to the problem the same as you're doing. I 
eventually pulled the speedo pinion drive out of the tranny tailshaft. It's 
held in the tailshaft housing with a little screw and lock plate. It may be 
hard to see if it's covered with grime. I discovered the teeth in the nylon 
pinion gear were stripped and worn down. I put a new gear in and all was 
well.

If you remove and replace the speedo pinion drive for any reason, make sure 
you get it seated in the correct orientation. If you look at it, you will 
see it is offset by design to allow it to be rotated in the tailshaft 
housing for proper adjustment. If it's not adjusted correctly, you'll soon 
wear the nylon gear down again. BTDT.
This info also applies to the 5-speed tranny.
Mike Hudson  '67  -Stroker / 5-speed


----- Original Message ----- 
From: "JERRY KINGMAN" <bmwjer at earthlink.net>
To: "'Datsun Mailing List'" <datsun-roadsters at autox.team.net>
Sent: Tuesday, March 02, 2010 11:15 PM
Subject: Re: [Roadsters] Speedometer installation


> Since we are on the speedometer topic, I have a 67' 1600 I picked up and 
> the speedo is not working. I removed the cable from the back of the speedo 
> and it is not moving. I then crawled under the car to remove and then 
> re-attach the cable to the tranny. There is a nub on the cable that seems 
> to fit in a groove in the end of the speedo gear in/on the tranny and I 
> made sure it fit well. The cable is still NOT moving. Could the cable be 
> broken inside? Or is it possibly the driven gear in the tranny itself? 
> There seems to be quite a bit of grease on the tranny end of the cable.
>  Thanks for any help.
>
>         JK  67' 1600
>
>
> -----Original Message-----
>>From: "Gregory S. Morrison" <gsm at gregorysmorrison.com>
>>Sent: Mar 2, 2010 11:21 AM
>>To: 'Datsun Mailing List' <datsun-roadsters at autox.team.net>
>>Subject: [Roadsters] Speedometer installation
>>
>>I am about to reinstall my rebuilt (thanks again Jon Frampton) speedometer
>>in my '67 2000. My plan was to just reconnect everything and call it good
>>but I can't remember if there are any hints or tips that are "must dos" 
>>for
>>this procedure. Is there anything I should/should not be doing in addition
>>to merely reconnecting it?
>>
>>Thanks,
>>Greg
>>SRL31100494
>>Spokane, WA