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gearbox lube

To: Randall <tr3driver@comcast.net>
Subject: gearbox lube
From: Peter Fullam <pfullam@nycap.rr.com>
Date: Sat, 21 Aug 2004 17:22:16 -0400
Cc: Triumph List <triumphs@autox.team.net>
References: <NCBBKDNEEKEOHAOIIOIIKEDFHEAA.tr3driver@comcast.net>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
Randall

Per your suggestion to the list, I moved my electric fan feed from the 
starter solenoid over to the A1 terminal on the regulator. Works fine, 
only now it draws 7 amps when it didn't use to draw any :-)

To revive a well-worn thread, I have a gearbox/overdrive lube question. 
The OD gearbox conversion cost too much and went on too long, but in the 
end it got done in time for Richmond. Everything was fine until the 
autocross. It was a very tight 1st gear course with 4 hairpin turns. I 
hit the gas coming out of the first turn and it went to 5 grand-in 
neutral. Bang it back in gear, down to the next turn, same thing. It 
jumped out of 1st 3 or 4 times on every run. It actually glided out of 
gear very quietly, with no jump or snap from the shifter. It does this 
only on a heavy overrun in 1st, and has not done it in street driving. 
The bushings, synchros and 1st/2nd shifter fork are new, and all bushing 
and gear end floats are in spec.

I started thinking about other symptoms: It is possible to beat the 
synchro on a downshift to 2nd. The box shifts very freely, with none of 
the notchiness TRs are known for. The OD tailshaft bearings had to be 
reset, and the guy who did it recommended Mobil 1 75-90 Synthetic gear 
oil. A local place had it, so thats what I used. Can synthetic oil be 
too slippery, so that the synchro sometimes doesn't, or there's no 
"feel" in the shifter rod detents? Is the mass of the shifter rod enough 
to override the detent and slide it out of gear on a 
deceleration/overrun? Can this be solved by a change to (enter a brand 
name here) non-synthetic gear oil?

Cheers
Pete
CT19207L.....O



Randall wrote:

>>As you may recall, I have an electric fan that is connected
>>directly to the
>>battery (and thus not run through the ammeter).  I'm cleaning up
>>some of my
>>wiring, and would like to run the fan power through the ammeter.
>>Is there a
>>connection point that you (or anyone else) would recommend to accomplish
>>this?
>>    
>>
>
>I don't recall offhand, do the later regulators (control box) have an extra
>terminal on A1 ?  If so, that would be an ideal place to tap power for the
>fan.  If not, then I think you'll need to tap into the brown/blue wire
>somehow.
>
>This assumes of course that you're still using the original generator.  If
>you've converted to an alternator, then just tap into the output wire from
>it.
>
>Randall

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