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I think I understand now.
=20
I need to loosen the arm on the throttle switch, put a 3/16 spacer under =
the throttle stop and adjust the throttle switch so the test light goes =
out and then tighten everything up.
=20
Correct?
=20
-john
=20
From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Hank =
Leach via Healeys
Sent: Sunday, July 2, 2023 10:24 AM
To: 'Bob Spidell' <bspidell@comcast.net>
Cc: healeys@autox.team.net
Subject: Re: [Healeys] Overdrive disengages
=20
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 throttle switch. (Good =
example in Haynes Manual page 124). Light should go out at this =
adjustment. Solenoid adjustment should be as Bob describes and work =
smoothly-no binding. Hank
-----------------------------------------
From: "Bob Spidell"=20
Cc:=20
Sent: Sunday July 2 2023 9:20:10AM
Subject: Re: [Healeys] Overdrive disengages
Hi John,
What keeps the O/D from disengaging immediately when you open the dash =
switch is the 'throttle switch.' When the O/D is actuated there is a =
parallel circuit that will keep the O/D activated until you press the =
accelerator pedal, theoretically preventing reverse thrust from damaging =
the O/D. The parallel circuit runs through the throttle switch on the =
scuttle (firewall); it sounds like you need to adjust it. It's a simple =
adjustment using a certain diameter--I don't recall it offhand, but I'll =
look it up if you need it--drill bit under the throttle stop levers. =
There's a small shaft off the throttle mechanism that opens this =
switch--it's just a set of points and a cam inside--with a lever with a =
pinch clamp. Just loosen the pinch clamp, set the bit under the throttle =
stop plate and tighten the clamp.
If you O/D is actuating consistently within a couple seconds or so then =
your solenoid, operating lever, operating shaft and ball 'valve' are =
correct. The 'stick-a-drill-bit-through-the-lever-into-the-housing' =
method is notoriously unreliable; the proper setting is best achieved by =
measuring the lift--IIRC, it's 1/32" but not sure--of the operating =
shaft at the top of the O/D hydraulic section.
Bob
On 7/1/2023 11:55 AM, John Spaur via Healeys wrote:
Hi All,
=20
My overdrive is functioning again after replacing the accumulator =
housing and piston but it is exhibiting an odd behavior which I believe =
is related to the adjustment of the setting lever.
=20
When I open the toggle switch, the OD will sometimes disengage =
immediately instead of waiting until I blip the accelerator. When I =
adjusted the setting lever, I could not use a 3/16=E2=80=9D dowel to =
line up the lever with the hole in the housing. I had to advance the =
lever clockwise a bit to get the OD to engage when the toggle switch was =
closed. This has always been the case and this issue is mentioned in =
some articles.
=20
Do I need to fiddle with the setting lever adjustment some more? If so, =
do I rotate it clockwise or counter clockwise?
=20
Any other thoughts?
=20
TIA,
John Spaur
=E2=80=9962 BT7
=20
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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>I think I understand now.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>I need to loosen the arm on the throttle switch, put a 3/16 spacer =
under the throttle stop and adjust the throttle switch so the test light =
goes out and then tighten everything up.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Correct?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>-john<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span><=
/b><span style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'> =
Healeys [mailto:healeys-bounces@autox.team.net] <b>On Behalf Of </b>Hank =
Leach via Healeys<br><b>Sent:</b> Sunday, July 2, 2023 10:24 =
AM<br><b>To:</b> 'Bob Spidell' =
<bspidell@comcast.net><br><b>Cc:</b> =
healeys@autox.team.net<br><b>Subject:</b> Re: [Healeys] Overdrive =
disengages<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>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 throttle switch. (Good example in Haynes =
Manual page 124). Light should go out at this adjustment. Solenoid =
adjustment should be as Bob describes and work smoothly-no binding. =
Hank<o:p></o:p></p><p>-----------------------------------------<o:p></o:p=
></p><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>From: "Bob =
Spidell" <br>To: <a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br>Cc: =
<br>Sent: Sunday July 2 2023 9:20:10AM<br>Subject: Re: [Healeys] =
Overdrive disengages<br><br>Hi John,<br><br>What keeps the O/D from =
disengaging immediately when you open the dash switch is the 'throttle =
switch.' When the O/D is actuated there is a parallel circuit that will =
keep the O/D activated until you press the accelerator pedal, =
theoretically preventing reverse thrust from damaging the O/D. The =
parallel circuit runs through the throttle switch on the scuttle =
(firewall); it sounds like you need to adjust it. It's a simple =
adjustment using a certain diameter--I don't recall it offhand, but I'll =
look it up if you need it--drill bit under the throttle stop levers. =
There's a small shaft off the throttle mechanism that opens this =
switch--it's just a set of points and a cam inside--with a lever with a =
pinch clamp. Just loosen the pinch clamp, set the bit under the throttle =
stop plate and tighten the clamp.<br><br>If you O/D is actuating =
consistently within a couple seconds or so then your solenoid, operating =
lever, operating shaft and ball 'valve' are correct. The =
'stick-a-drill-bit-through-the-lever-into-the-housing' method is =
notoriously unreliable; the proper setting is best achieved by measuring =
the lift--IIRC, it's 1/32" but not sure--of the operating shaft at =
the top of the O/D hydraulic =
section.<br><br>Bob<br><br><o:p></o:p></p><div><p class=3DMsoNormal>On =
7/1/2023 11:55 AM, John Spaur via Healeys =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi =
All,<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My =
overdrive is functioning again after replacing the accumulator housing =
and piston but it is exhibiting an odd behavior which I believe is =
related to the adjustment of the setting lever.<o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>When I open =
the toggle switch, the OD will sometimes disengage immediately instead =
of waiting until I blip the accelerator. When I adjusted the setting =
lever, I could not use a 3/16=E2=80=9D dowel to line up the lever with =
the hole in the housing. I had to advance the lever clockwise a bit to =
get the OD to engage when the toggle switch was closed. This has always =
been the case and this issue is mentioned in some =
articles.<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Do I need =
to fiddle with the setting lever adjustment some more? If so, do I =
rotate it clockwise or counter clockwise?<o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Any other =
thoughts?<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>TIA,<o:p></o=
:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>John =
Spaur<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>=E2=80=9962 =
BT7<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p></blockquote><p =
class=3DMsoNormal><br><br><o:p></o:p></p></div></body></html>
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