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Re: Why does my overdrive delay shifting (Type A) ?

To: "Ben Burnweit" <a1972tr6@hotmail.com>
Subject: Re: Why does my overdrive delay shifting (Type A) ?
From: "James Franks" <jimmble@adelphia.net>
Date: Mon, 10 Dec 2001 08:19:18 -0500
Ben, it seems like everything is OK.

The O/D shares gear oil with the gearbox.

I'm not quite sure how you are shifting, but you don't have to baby
these O/D's.

I always shift O/D while on the gas, so as to minimize the 'bang' of
engagement. If you shift it while off the throttle, the engagement takes
up any play you have in your drivetrain, and it 'bangs'.

As I understand it, you are leaving the O/D on the entire time you are
driving? I haven't seen it used that way, but if you do, here's what is
happening as you drive with the switch on:

  1st gear: no O/D due to lockout function.

  Engage clutch and shift thru neutral into second: once shifter engages
detent, second gear O/D lockout switch is made, O/D solenoid is engaged,
pressure builds, and O/D engages. The process is not instantaneous.

  Engage clutch and shift into third: as you pull shifter out of second
gear, the second gear lockout removes the ground path from the O/D
solenoid, hydraulic pressure is removed, and the O/D disengages.......
once you move the shifter to third, the third gear lockout is made, and
the O/D solenoid is powered and the O/D re-engages, again with a slight
delay while pressure builds.

Fourth is the same as third.

I don't usually use O/D except in fourth. When I have accelerated thru
fourth, I flip the switch and engage O/D. Sometimes I'll use third O/D
in-town in reduced speed cruising, but 7 forward speeds aren't really
necessary for normal use!!

I have seen the inside of an O/D that was engaged when the car was
reversed (backed up)
It was creamed.
For that reason, I like to feel the O/D dis-engage when I am finished
with it, rather than let the lockouts disengage it as I come into
neutral. IMHO of course.

Hope this helps!
Have fun,  Jim

----- Original Message -----
From: "Ben Burnweit" <a1972tr6@hotmail.com>
To: <6pack@autox.team.net>
Sent: Monday, December 10, 2001 12:33 AM
Subject: Why does my overdrive delay shifting (Type A) ?


> Listers,
>
> Ever since I renewed the coil springs and dampers (Shocks, Heh Heh!)
on my
> '72 TR6 I've been spending more time (and Fun) on the Freeway.  Hence,
I've
> been using the overdrive (A type) and the car glides effortlessly well
over
> 70 mph!
> I never switch on the OD while the car is moving (I guess that might
break
> something (?) )
> So when I start down the ramp the OD is set on.  About 4 or 5 seconds
after
> I shift into 2nd the OD Kicks in, (Literally).  Same thing with 3rd
and 4th.
>   Once were in top gear the car goes like a bullet and I love it!
> But, I question is should the OD be delayed like that and should it
"kick" ?
> I guess the first thing is to check the oil level, but what is the
proper
> kind of oil and is there anything I should been warned about?
>
> PS- I gotta tell ya:  I was waiting in line at the local burger
drive-thru
> last night and these three teenagers were sitting on a wall smoking
not far
> away. I over heard one say, What kind of car is that?"
> The other replied, "That's a TR-6! That's a Bad little car!"
> OK ...so it made me feel COOL.  (heh heh heh)
>
> Thanks,
> Ben
>
> _________________________________________________________________

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