John thanks for your help but I seem to be too dense to accomplish this
minor task.
Attached is a link to a photo of my speedo connection with the cable
removed.
I'm not sure but it sounds like I am missing the bolt and 1/16th locking
tab, am I correct?
Without knowing where the tab fits I'm not finding how to teeter-totter it
out.
Am I to pull only the gear or the threaded housing as well.
Also do you know off hand if any of the vendors sell the plate and bolt?
http://community.webshots.com/myphotos?action=viewAllPhotos&albumID=55134058
7&security=PbqiBG
Thanks so much for your help.
Chas Willis
-----Original Message-----
From: John F Sandhoff [mailto:sandhoff@csus.edu]
Sent: Monday, May 08, 2006 4:53 PM
To: Chas Willis
Cc: datsun-roadsters@autox.team.net
Subject: RE: Question about Speedo
> ...I assume that the [speedo drive] gear is shot... I haven't a clue
> how to remove and replace the gear.
I assume we're talking about the entire drive assembly that fits into the
tranny case.
I'm also assuming this is a 2L without the 90 degree right-angle adapter
(otherwise, it could be that the adapter has failed. The adapter simply
screws on - albeit tightly - to the drive gear assembly. Anyone removing
this adapter, be aware that there's a short drive pin that is not attached
and can fall out / get lost!)
The speedo drive looks like a chunky metal 'tube' with a nylon gear sticking
out the 'inside' end. This assembly is held in place by a bolt and locking
tab, and there's an O-ring around the body to keep the oil where it belongs.
The friction of that seal prevents the u
nit from easily sliding out.
You need to unscrew the bolt and locking tab (a small metal plate, about a
sixteenth of an inch thick). Then the tube pulls straight out.
If you have maneuvering room, try using a large flat blade screwdriver,
engage the tip in the groove where the locking plate fits, use something
small and hard between the screwdriver shaft and the case as a lever point
(think teeter-totter here), and carefully pry the assembly out.
-- John
John F Sandhoff sandhoff@csus.edu Sacramento, CA
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