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Bob's got the procedure. Use a .040" feeler gauge (or 3/16 drill)=0Aunde=
r the throttle stop (1/5 of the throttle opening). Connect a 12V=0Atest=
light to the fuse box and the top terminal on the throttle=0Aswitch. (G=
ood example in Haynes Manual page 124). Light should go out=0Aat this ad=
justment. Solenoid adjustment should be as Bob describes and=0Awork smoo=
thly-no binding. Hank=0A=0A=09-----------------------------------------F=
rom: "Bob Spidell" =0ATo: healeys@autox.team.net=0ACc: =0ASent: Sunday J=
uly 2 2023 9:20:10AM=0ASubject: Re: [Healeys] Overdrive disengages=0A=0A=
Hi John,=0A=0A What keeps the O/D from disengaging immediately when you=
open the=0Adash switch is the 'throttle switch.' When the O/D is actuat=
ed there=0Ais a parallel circuit that will keep the O/D activated until=
you press=0Athe accelerator pedal, theoretically preventing reverse thr=
ust from=0Adamaging the O/D. The parallel circuit runs through the throt=
tle=0Aswitch on the scuttle (firewall); it sounds like you need to adjus=
t=0Ait. It's a simple adjustment using a certain diameter--I don't recal=
l=0Ait offhand, but I'll look it up if you need it--drill bit under the=
=0Athrottle stop levers. There's a small shaft off the throttle mechanis=
m=0Athat opens this switch--it's just a set of points and a cam=0Ainside=
--with a lever with a pinch clamp. Just loosen the pinch clamp,=0Aset th=
e bit under the throttle stop plate and tighten the clamp.=0A=0A If you=
O/D is actuating consistently within a couple seconds or so=0Athen your=
solenoid, operating lever, operating shaft and ball 'valve'=0Aare corre=
ct. The=0A'stick-a-drill-bit-through-the-lever-into-the-housing' method=
is=0Anotoriously unreliable; the proper setting is best achieved by=0Am=
easuring the lift--IIRC, it's 1/32" but not sure--of the operating=0Asha=
ft at the top of the O/D hydraulic section.=0A=0A Bob=0A=0AOn 7/1/2023 1=
1:55 AM, John Spaur via Healeys wrote:=0A=0A=09Hi All, =0A=0A=09My overd=
rive is functioning again after replacing the accumulator=0Ahousing and=
piston but it is exhibiting an odd behavior which I=0Abelieve is relate=
d to the adjustment of the setting lever. =0A=0A=09When I open the toggl=
e switch, the OD will sometimes disengage=0Aimmediately instead of waiti=
ng until I blip the accelerator. When I=0Aadjusted the setting lever, I=
could not use a 3/16=E2=80=9D dowel to line up=0Athe lever with the hol=
e in the housing. I had to advance the lever=0Aclockwise a bit to get th=
e OD to engage when the toggle switch was=0Aclosed. This has always been=
the case and this issue is mentioned in=0Asome articles. =0A=0A=09Do I=
need to fiddle with the setting lever adjustment some more? If=0Aso, do=
I rotate it clockwise or counter clockwise? =0A=0A=09Any other thoughts=
? =0A=0A=09TIA, =0A=0A=09John Spaur =0A=0A=09=E2=80=9962 BT7 =0A=0A
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<html><body>Bob's got the procedure. Use a .040" feeler gauge (or=
3/16 drill) under the throttle stop (1/5 of the throttle opening). =
; Connect a 12V test light to the fuse box and the top terminal on the t=
hrottle switch. (Good example in Haynes Manual page 124). Light should g=
o out at this adjustment. Solenoid adjustment should be as Bob describes=
and work smoothly-no binding. Hank<br><br><div class=3D"reply-new-signa=
ture"></div><p>-----------------------------------------</p>From: "Bob S=
pidell" <bspidell@comcast.net><br>To: healeys@autox.team.net<br>Cc: <br>=
Sent: Sunday July 2 2023 9:20:10AM<br>Subject: Re: [Healeys] Overdrive d=
isengages<br><br>=0AHi John,<br><br>=0AWhat keeps the O/D from disengagi=
ng immediately when you open the=0Adash switch is the 'throttle switch.'=
When the O/D is actuated=0Athere is a parallel circuit that will keep t=
he O/D activated until=0Ayou press the accelerator pedal, theoretically=
preventing reverse=0Athrust from damaging the O/D. The parallel circuit=
runs through the=0Athrottle switch on the scuttle (firewall); it sounds=
like you need=0Ato adjust it. It's a simple adjustment using a certain=
diameter--I=0Adon't recall it offhand, but I'll look it up if you need=
it--drill=0Abit under the throttle stop levers. There's a small shaft o=
ff the=0Athrottle mechanism that opens this switch--it's just a set of=
=0Apoints and a cam inside--with a lever with a pinch clamp. Just=0Aloos=
en the pinch clamp, set the bit under the throttle stop plate=0Aand tigh=
ten the clamp.<br><br>=0AIf you O/D is actuating consistently within a c=
ouple seconds or so=0Athen your solenoid, operating lever, operating sha=
ft and ball=0A'valve' are correct. The=0A'stick-a-drill-bit-through-the-=
lever-into-the-housing' method is=0Anotoriously unreliable; the proper s=
etting is best achieved by=0Ameasuring the lift--IIRC, it's 1/32" but no=
t sure--of the operating=0Ashaft at the top of the O/D hydraulic section=
.<br><br>=0ABob<br><br><br><div class=3D"moz-cite-prefix">On 7/1/2023 11=
:55 AM, John Spaur via=0AHealeys wrote:<br></div>=0A<blockquote>=0A<div=
class=3D"WordSection1">=0A<p class=3D"MsoNormal">Hi All,</p>=0A<p class=
=3D"MsoNormal"> </p>=0A<p class=3D"MsoNormal">My overdrive is funct=
ioning again after=0Areplacing the accumulator housing and piston but it=
is exhibiting=0Aan odd behavior which I believe is related to the adjus=
tment of the=0Asetting lever.</p>=0A<p class=3D"MsoNormal"> </p>=0A=
<p class=3D"MsoNormal">When I open the toggle switch, the OD will=0Asome=
times disengage immediately instead of waiting until I blip the=0Aaccele=
rator. When I adjusted the setting lever, I could not use a=0A3/16=E2=80=
=9D dowel to line up the lever with the hole in the housing. I=0Ahad to=
advance the lever clockwise a bit to get the OD to engage=0Awhen the to=
ggle switch was closed. This has always been the case=0Aand this issue i=
s mentioned in some articles.</p>=0A<p class=3D"MsoNormal"> </p>=0A=
<p class=3D"MsoNormal">Do I need to fiddle with the setting lever=0Aadju=
stment some more? If so, do I rotate it clockwise or counter=0Aclockwise=
?</p>=0A<p class=3D"MsoNormal"> </p>=0A<p class=3D"MsoNormal">Any o=
ther thoughts?</p>=0A<p class=3D"MsoNormal"> </p>=0A<p class=3D"Mso=
Normal">TIA,</p>=0A<p class=3D"MsoNormal">John Spaur</p>=0A<p class=3D"M=
soNormal">=E2=80=9962 BT7</p>=0A</div>=0A<br></blockquote>=0A<br></bspid=
ell@comcast.net></body></html>
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