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Re: Nice Fast Ride out in the Country, and then no 5th

To: Jim Cawrse <nqrithjim@hotmail.com>, datsun-roadsters@autox.team.net
Subject: Re: Nice Fast Ride out in the Country, and then no 5th
From: "L.J. Ganser" <ljganser@yahoo.com>
Date: Wed, 14 Jan 2004 09:54:59 -0800 (PST)
Main Shaft nut or nuts. Loosey goosey
 
  L.J. 69 2000

Jim Cawrse <nqrithjim@hotmail.com> wrote:
Dear List
Well, fixed my winter fix-it list on the roadster and was enjoying a nice 
sun-setting fast ride out
into the farmlands of Chesapeake Virginia and there was significant gear 
whine coming from the
tranny, in 5th gear, noise on with gas on, noise off with gas off. Hmmm, I 
was making a mental note to write the list and ask about this when 
"clunk...rrrrrAAAWWW" sudenly the forward propulsion afforded by 5th gear 
left, as 5th decided to take some sort of leave of abscence...pulled into a 
farmhouse driveway to back out and go home and there was no reverse, in fact 
the shifter would not go toward where reverse used to be....once turned 
around I found that at first there was no 5th, and then later on the 5th 
gear slot had seemed to become another 3rd....hmmm

So...is this the famous "5th gear neutral" these trannys are known for? I 
am not looking forward
to pulling the engine and tranny again. I had the tranny rebuilt a few 
years ago with new bearings and synchros...and figured if 5th had not come 
loose after 30 or 40 years it would probably hang in there for a few more.

Do both early and late 5 speeds have this problem? What about a more modern 
stronger tranny
like a dog-leg 5spd from a 70's - 80's vintage Datsun, I heard these would 
fit? Or should I take this back to the tranny guy, have the shaft built up 
and turned down, and then have 5th welded or pinned on? Anyone on the East 
Coast got a good used 5spd?

The one bright spot is I could have the speedo gear changed out, I figured 
the car had a 3.70 rear end, because it has a newer rear axle that I thought 
was from the 5 speed donor car (this dates to a PO of long ago, details are 
fuzzy) but my speedo reads optomistic after I had the tranny rebuilt and 
3.70 speedo gear put in. I must have the 3.89 or something even a bit 
higher...I must try the turn and count the driveshaft/back wheels technique.

TIA for some good advice!

My guts are telling me to put the cover back on the car for a few months and 
put the
510 sportwagon project together....I need some positive vibes, instead of 
fixing all these
negative roadster maladies.....

ARGH!

Jim Cawrse
Chesapeake, Virginia
67 pushrod 2L 5spd (well, 4spd now)
72 510 sportwagon project

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