I found that the best way is to adjust the O/D is as per the book, but not
using the lever. I think the connection to the lever can wear over the
years. The book method that is best is to measure the amount of lift on the
ball bearing that controls the flow of oil. I haven't got my manual handy so I
can't say what it should be. You just have to take off a plug on the top of
the O/D and use some form of accurate measurmemt to get the correct lift. I
found this out the hard way after trying unsucessfully to get my O/D to work
and blowing a brand new solenoid. I originally got the correct setting by
moving the lever a small amount then driving the car to test it until it worked
( I must have driven 25 miles !) , but when I read about the ball bearing lift
method I checked it and found that I had achieved the correct setting through
my adjustments.
I also wired my O/D differently to make it slicker when accelerating up the
gears see
http://members.tripod.com/~BrianJohnson_UK/page130.html for how I did it !
--
Cheers
Brian Johnson
Internet bjohnson@myself.com (work) or b.johnson@lycosmail.com(home)
1963 TR4 AFP503A / IZS 733(USA) - CT27216-L (now not L but O ) ex USA
1954 TR2 46 BHX TS554-O UK Car in pieces
1989 Vauxhall Cavalier 2.0 GLI - Eurobox but it goes !
Henry Frye wrote:
> >At 07:54 PM 3/2/99 EST, KTRIUMPH@aol.com <Ken> wrote:
> >>
> >>In a message dated 3/2/99 2:17:54 PM EST, Bud_Rolofson@nps.gov writes:
> >>
> >>>In testing the A type OD I'm going to transplant into my good car I
> noticed >>>that the OD shifted into second gear fairly hard
> >
> >snip
> >
> >>Make sure you adjust the operating lever to where the thing works, not
> >>necessarily where the book sez it should be!
> >
> >I agree with Ken's comment the operating lever. My local OD guru believes
> >the operating lever should be set so the throw is a little longer than the
> >book spec. Mine is adjusted that way, and it has worked fine for me. YMMV
> >
>
> A word of warning. I was flipping through the Moss catalog this afternoon
> and came across this:
>
> --- Moss quote start
>
> Overdrive Solenoid Failure
>
> Overdrive solenoids will suffer "meltdown" if the operating lever is not
> adjusted correctly. Refer to your workshop manual for details of the
> correct procedure for adjustment.
>
> When the overdrive switch is engaged, both solenoid coils are energized,
> causing the plunger to be pulled sharply into the solenoid. When it hits
> the top of the solenoid bore, the plunger opens switch "A", disconnecting
> the closing coil, leaving the holding coil to keep the plunger in position.
>
> If the overdrive unit's operating lever is maladjusted so that the solenoid
> plunger can not reach the switch plunger, both coils will remain energized
> as long as the overdrive is selected, The closing coil will soon overheat
> to the point of failure, as it was designed to be in operation for only the
> fraction of a second it takes for the plunger to open the switch and remove
> the closing coil from the circuit.
>
> --- Moss quote end
>
> So, forget my post that said you can get away with adjusting the operating
> lever differently than the manual! ;-)
>
> - - - - - - - - - - - - - - - - - - - - - - - - - -
> Henry Frye - thefryes@iconn.net - Connecticut, USA
> Stag MkI Getting Sorted Out
> TR3B Driver
> TR250 X 3 The BIG Project - Will Be Worth the Wait
> Homepage http://members.iconn.net/thefryes/
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