Charley,
I'll tell you what to look for:
MOST IMPORTANT is the countershaft bearings and shaft. Replace the
countershaft and bearings even if they appear to be good. Good Insurance.
Also inspect the bearing surface of the countergear to make sure it is
smooth.
Inspect the synchro rings. If they are smooth and a shiny metal surface can
be seen they should be replaced. Inspect all gears for chipped teeth, shift
forks for excessive wear where they contact the "baulk ring" (or the ring
that moves between the synchros to select the gear), and check main shaft
bearings for smoothness. If money is no problem I would replace the all
synchros now rather than wait until they go bad and then you have to pull
the engine again. Don't ask me how I know.
Also check the end play of the countershaft for correct clearance as well as
2nd and 3rd gear endplay. Mine were off and I had to replace the thrust
washers with thicker ones to get the correct end play.
On the shifter mechanism check for broken springs and worn shifter rods.
If you have any Qs email me. BTW, replace all gaskets and Orings if nothing
else and of course the clutch and t/o bearing. I think it cost me about 200
in parts to rebuild my tranny.
Mike
----- Original Message -----
From: "Charles Hubbard" <cehubbard@home.com>
To: "Datsun Roadster Mailing List (E-mail)"
<datsun-roadsters@autox.team.net>
Sent: Saturday, February 24, 2001 12:04 PM
Subject: 1500 Transmission Assessment
> Can anyone provide advice on how to asses the condition of a 1500
> transmission? Since I have it out of the car, I would like to see if there
> are any parts that need to be replaced before it is reinstalled. I took
the
> top cover and the front plate off of my spare just to look
> around. I determined that I had no idea what I was looking for...much less
> how to take the guts out. For this information, I turned to the original
> Japanese manual and for the life of me can't figure out how to (I'm not
> making this up) "using soft metal dirt, drive the countershaft forward".
>
> If one were so inclined, where would one go to buy "metal dirt", much less
> use it as a tool to break down a transmission. perhaps you guys from
mining
> states could offer advice. ;-)
>
> Seriously, could anyone out there be so kind as to copy and send me the
> transmission section of a shop manual with instructions that actually make
> sense. It would also help to know if there are any special tools required
> to handle this particular tasks.
>
> Thank you.
>
> Charlie Hubbard
> 1964 SPL310 (1500)
> Flower Mound, TX
> http://members.home.net/cehubbard/tdroc/
|