[Roadsters] 5-speed tranny pops out of 2nd gear?

[robert k. smith]

  hi  dick, in my experience with that 5 spd. i would make a strong guess

that the problem is the shift pin on the 1-2 shift rod. that was the weak
point

on the u20 5 spd. you have to r&r the eng., trans., and take the case apart
to

get to the shift rods and pins. btw, DO NOT just replace the one bad shift
pin.

do them all. you can get double(THICK) roll pins, or you can just put in new
stock

roll pins, and buy a bunch of 3/32 " drill bits, to drive in side of the
stock

pins  and break off flush.

  also, to get an idea if the pins are at fault, when you lose 2nd gear, push

the shifter back hard against 1st gear, then gently try for 2nd. if it works,

then its a broken shift pin. this is not a definitive test. while apart, this
is

a good time to ck. 5th gear(for being splined), and mabe put in frt. and

rear seals. lastly, if you lose 2nd gear, it doesnt hurt to drive the

car, skip shifting 2nd. gear.(mabe some extra clutch plate wear).

  good luck, bob smith, ohio.




> To: Datsun-roadsters at autox.team.net
> Date: Mon, 8 Mar 2010 11:21:15 -0500
> From: dickschnei at aol.com
> Subject: [Roadsters] 5-speed tranny pops out of 2nd gear?
>
> The transmission in my 1969 2000 is starting to pop out of 2nd gear. It
only
> happens infrequently but once it occurs I can not use 2nd at all. There is
no
> grinding or any other noise. It simply goes right back into neutral. If I
> shut off the engine for a few minutes then restart, the transmission seems
to
> work normally once again.
>
> This car has the Mikuni carbs and runs great, but I am fearful that if I
drive
> it under these conditions I might destroy the transmission. Any advice from
> anybody would be much appreciated. I am not a mechanic at all, so any
> solution would need to be done at a shop. Are there rebuild 5-speeds
> available? Can these trannys be rebuilt at a local shop? Are there even
> parts available? Any ideas, even ones that are of significant cost, will be
> helpful.
>
> My wife and I love this car and enjoy the warm days taking road trips. As
we
> approach our retirement years, we planned on taking this car on longer
trips,
> but in this condition it seems to be very risky.
>
> Thanks,
>
> Dick Schneiders
> ______________________________________

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