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Rafael-a few comments about your issues. I coming from a different=0Apla=
ce by assuming that the cone clutch is ok.=0AFirst, what oil is in the g=
earbox and transmission?-only use 30W NON=0Adetergent-all others will fo=
am...especially with the addition of heat.=0AWhen the OD was rebuilt- th=
ere are two sets of springs of the 8...4=0Aare 4-1/4" and 4 are 4-1/2" t=
he longer springs must go to the outside=0Aand the shorter to the inside=
of the cone structure. If the springs=0Aare coil bound from misuse-repl=
ace them. If they are reversed the=0Apressure to hold the clutch in dire=
ct drive is not sufficient.=0AThe overdrive must achieve at least 400lbs=
of pressure at all times in=0Ause. The low numbers indicate an accumula=
tor issue. O-rings or piston=0Arings worn or misplaced.=0AIt is exteamel=
y important that the car never goes into reverse with=0Athe overdrive en=
gaged. Make sure the lockout switch is working.=0ABe sure the two check=
balls are in proper place 1/4" and 5/16" do not=0Amix them up with each=
other.=0AHas your OD rebuilder done other Laycock overdrives? Hank=0A=
=0A=09-----------------------------------------From: "Rafael Abugattas v=
ia=0AHealeys" =0ATo: "healeys@autox.team.net"=0ACc: =0ASent: Thursday Ma=
y 20 2021 2:47:20PM=0ASubject: [Healeys] Transmission / Overdrive or Clu=
tch slippage=0A=0A=09Hi all, =0A=0A=09Last year I requested your help re=
garding a strange overdrive or=0Aslippage problem I have in my 1962 Tric=
arb BT7. =0A=0A=09I received very valuable comments and suggestions but=
sadly the=0Aproblem persists: Overdrive would not activate under any ci=
rcumstances=0Aand when the engine / transmission is warm and we engage r=
everse, the=0Aengine revs but the car won=C2=B4t move. =0A=0A=09There is=
slippage somewhere in the transmission / clutch or=0Aoverdrive. When th=
e car is cold, reverse engages without any issues.=0AThis only happens i=
n reverse gear after the car has been driven a few=0Amiles and the engin=
e and transmission are warm. Forward gears engage=0Aall the time without=
any issues. =0A=0A=09The car has been recently restored. Before the res=
toration the=0Aoverdrive was operational. Now it=E2=80=99s not. =0A=0A=
=09The transmission and overdrive have been taken apart and assembled=0A=
twice looking for something visually wrong. Everything seemed to be=0AOK=
. =0A=0A=09The clutch and plate were also removed for inspection. The cl=
utch was=0Arecently redone, adjusted and tested. =0A=0A=09A friend sugge=
sted we should verify the oil pressure on the=0Aoverdrive. On this link=
you will find a couple of videos of a test we=0Ahave recently done with=
a manometer installed on the overdrive to=0Acheck the oil pressure at d=
ifferent RPM=C2=B4s. =0A=0A=09=0A[1]https://www.dropbox.com/sh/t5p8kqz6v=
6yduyt/AADizyVMyBKPozy284B-udA4a?dl=3D0=0A[2] =0A=0A=09The pressure on 3=
rd and 4th gears goes up to 400 psi and drops as it=0Agoes to lower gear=
s. At idle is between 150 to 200 psi =0A=0A=09In forward gears the car r=
uns fine; the problem that we need to solve=0Ais that the overdrive woul=
d not activate(even though it is connected=0Aand everything seems visual=
ly OK) and the slippage we have when=0Aengaging reverse (the car won=C2=
=B4t move) when the engine / transmission=0Ais warm. =0A=0A=09We are loc=
ated in Lima =E2=80=93 Peru and as you may imagine, there are not=0Amany=
experts in this particular area of expertise. =0A=0A=09Any thoughts or=
suggestions from you collective knowledge and wisdom=0Aon how to procee=
d will be much appreciated. =0A=0A=09Thanks in advance! =0A=0A=09 Rafae=
l =0A=0A =0A=0ALinks:=0A------=0A[1]=0Ahttps://www.dropbox.com/sh/t5p8k=
qz6v6yduyt/AADizyVMyBKPozy284B-udA4a?dl=3D0=0A[2]=0Ahttps://www.dropbox.=
com/sh/t5p8kqz6v6yduyt/AADizyVMyBKPozy284B-udA4a?dl=3D0=0A
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<html><body>Rafael-a few comments about your issues. I coming from a dif=
ferent place by assuming that the cone clutch is ok.<div><br></div><div>=
First, what oil is in the gearbox and transmission?-only use 30W NON det=
ergent-all others will foam...especially with the addition of heat.</div=
><div><br></div><div>When the OD was rebuilt- there are two sets of spri=
ngs of the 8...4 are 4-1/4" and 4 are 4-1/2" the longer springs must go=
to the outside and the shorter to the inside of the cone structure. If=
the springs are coil bound from misuse-replace them. If they are revers=
ed the pressure to hold the clutch in direct drive is not sufficient.</d=
iv><div><br></div><div>The overdrive must achieve at least 400lbs of pre=
ssure at all times in use. The low numbers indicate an accumulator issue=
. O-rings or piston rings worn or misplaced.</div><div><br></div><div>It=
is exteamely important that the car never goes into reverse with the ov=
erdrive engaged. Make sure the lockout switch is working.</div><di=
v><br></div><div>Be sure the two check balls are in proper place 1/4" an=
d 5/16" do not mix them up with each other.</div><div><br></div><div>Has=
your OD rebuilder done other Laycock overdrives? Hank</div><div><br></d=
iv><div><br><br><div class=3D"reply-new-signature"></div><p>------------=
-----------------------------</p>From: "Rafael Abugattas via Healeys" <h=
ealeys@autox.team.net><br>To: "healeys@autox.team.net"<br>Cc: <br>Sent:=
Thursday May 20 2021 2:47:20PM<br>Subject: [Healeys] Transmission / Ove=
rdrive or Clutch slippage<br><br>=0A<div class=3D"yahoo-style-wrap" styl=
e=3D"font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-siz=
e:13px;">=0A<div dir=3D"ltr">=0A<div>=0A<p class=3D"ydpfe39e09bxyiv36602=
42746msonormal" style=3D"background:#FFFFFF;"><span style=3D"font-size:1=
1pt;font-family:Calibri, sans-serif;">Hi=0Aall,</span></p>=0A<p class=3D=
"ydpfe39e09bxyiv3660242746msonormal" style=3D"background:#FFFFFF;"><span=
style=3D"font-size:11pt;font-family:Calibri, sans-serif;">Last=0Ayear I=
requested your help regarding a strange overdrive or=0Aslippage problem=
I have in my 1962 Tricarb BT7.</span></p>=0A<p class=3D"ydpfe39e09bxyiv=
3660242746msonormal" style=3D"background:#FFFFFF;"><span style=3D"font-s=
ize:11pt;font-family:Calibri, sans-serif;">I=0Areceived very valuable co=
mments and suggestions but sadly the=0Aproblem persists: Overdrive would=
not activate under any=0Acircumstances and when the engine / transmissi=
on is warm and we=0Aengage reverse, the engine revs but the car won=C2=
=B4t move.</span></p>=0A<p class=3D"ydpfe39e09bxyiv3660242746msonormal"=
style=3D"background:#FFFFFF;"><span style=3D"font-size:11pt;font-family=
:Calibri, sans-serif;">There=0Ais slippage somewhere in the transmission=
/ clutch or overdrive.=0AWhen the car is cold, reverse engages without=
any issues. This only=0Ahappens in reverse gear after the car has been=
driven a few miles=0Aand the engine and transmission are warm. Forward=
gears engage all=0Athe time without any issues.</span></p>=0A<p class=
=3D"ydpfe39e09bxyiv3660242746msonormal" style=3D"background:#FFFFFF;"><s=
pan style=3D"font-size:11pt;font-family:Calibri, sans-serif;">The=0Acar=
has been recently restored. Before the restoration the=0Aoverdrive was=
operational. Now it=E2=80=99s not.</span></p>=0A<p class=3D"ydpfe39e09b=
xyiv3660242746msonormal" style=3D"background:#FFFFFF;"><span style=3D"fo=
nt-size:11pt;font-family:Calibri, sans-serif;">The=0Atransmission and ov=
erdrive have been taken apart and assembled=0Atwice looking for somethin=
g visually wrong. Everything seemed to be=0AOK.</span></p>=0A<p class=3D=
"ydpfe39e09bxyiv3660242746msonormal" style=3D"background:#FFFFFF;"><span=
style=3D"font-size:11pt;font-family:Calibri, sans-serif;">The=0Aclutch=
and plate were also removed for inspection. The clutch was=0Arecently r=
edone, adjusted and tested.</span></p>=0A<p class=3D"ydpfe39e09bxyiv3660=
242746msonormal" style=3D"background:#FFFFFF;"><span style=3D"font-size:=
11pt;font-family:Calibri, sans-serif;">A=0Afriend suggested we should ve=
rify the oil pressure on the=0Aoverdrive. On this link you will find a c=
ouple of videos of a test=0Awe have recently done with a manometer insta=
lled on the overdrive=0Ato check the oil pressure at different RPM=C2=B4=
s.</span></p>=0A<p class=3D"ydpfe39e09bxyiv3660242746msonormal" style=3D=
"background:#FFFFFF;"><span style=3D"font-size:11pt;font-family:Calibri,=
sans-serif;"><a href=3D"https://www.dropbox.com/sh/t5p8kqz6v6yduyt/AADi=
zyVMyBKPozy284B-udA4a?dl=3D0"></a><a href=3D"https://www.dropbox.com/sh/=
t5p8kqz6v6yduyt/AADizyVMyBKPozy284B-udA4a?dl=3D0">https://www.dropbox.co=
m/sh/t5p8kqz6v6yduyt/AADizyVMyBKPozy284B-udA4a?dl=3D0</a></span></p>=0A<=
p class=3D"ydpfe39e09bMsoNormal"><span>The pressure on 3rd and 4th=0Agea=
rs goes up to 400 psi and drops as it goes to lower gears. At=0Aidle is=
between 150 to 200 psi</span></p>=0A<p class=3D"ydpfe39e09bxyiv36602427=
46msonormal" style=3D"background:#FFFFFF;"><span style=3D"font-size:11pt=
;font-family:Calibri, sans-serif;">In=0Aforward gears the car runs fine;=
the problem that we need to solve=0Ais that the overdrive would not act=
ivate(even though it is=0Aconnected and everything seems visually OK) an=
d the slippage we=0Ahave when engaging reverse (the car won=C2=B4t move)=
when the engine /=0Atransmission is warm.</span></p>=0A<p class=3D"ydpf=
e39e09bxyiv3660242746msonormal" style=3D"background:#FFFFFF;"><span styl=
e=3D"font-size:11pt;font-family:Calibri, sans-serif;">We=0Aare located i=
n Lima =E2=80=93 Peru and as you may imagine, there are not=0Amany exper=
ts in this particular area of expertise.</span></p>=0A<p class=3D"ydpfe3=
9e09bxyiv3660242746msonormal" style=3D"background:#FFFFFF;"><span style=
=3D"font-size:11pt;font-family:Calibri, sans-serif;">Any=0Athoughts or s=
uggestions from you collective knowledge and wisdom on=0Ahow to proceed=
will be much appreciated.</span></p>=0A<p class=3D"ydpfe39e09bxyiv36602=
42746msonormal" style=3D"background:#FFFFFF;"><span style=3D"font-size:1=
1pt;font-family:Calibri, sans-serif;">Thanks=0Ain advance!</span></p>=0A=
<p class=3D"ydpfe39e09bxyiv3660242746msonormal" style=3D"background:#FFF=
FFF;word-spacing:0px;">=0A<span lang=3D"es-mx" style=3D"font-size:11pt;f=
ont-family:Calibri, sans-serif;">=0ARafael</span></p>=0A<p class=3D"ydpf=
e39e09bMsoNormal"> </p>=0A</div>=0A<br></div>=0A</div>=0A</healeys@=
autox.team.net></div></body></html>
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