Subject: [TR] Overdrive issues

From: Rye Livingston <[email-masked]>
Date: Fri, 10 Jun 2016 15:50:18 +0000 (GMT) MailServer16D250.25128-16A-982-e9c2ef2b8d8a t=1465573820; bh=qsm8AOTx7umHqTDKV7yzMBbFWQ8yCsgemxpk2cT6YIc=; h=MIME-version:Content-type:To:From:Subject:Date:Message-id; b=II607khiRye0aAy8BfqHnA8gik5MbKTnNSgBb7dr/9Zs5ygynXtiLM359GkhwmlHZ K3Zljli8fhRnN5faVnjdOlcBaWfDxMyOPiB6vkm09zr6GWXW0SAy7EoMeDb950jaKo 7JXJQWSVnbjEQ55/tDIN194lg0HHqqNlOkbBqVhIDHvAsQrDB9VTXHVj/o42gXY6ff xYJIzworMmTcCJgySdPX+EkhWBan5jjRdHe0jYGEMwfU9n8uQTtVVn7rAKqXh6l8fK FhsMlBFoz4QYnrsDJvE5g1D/BZp1kEBFcQPtM+UTcPdw6eaitUjjlI5yPhyBCdhfrP pgy7Wza77/9Vg==

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Transmission update - for those reading about this for the first time, thi=
s is a 1960 TR3 with a TR4 OD transmission. Yesterday they said it's basic=
ally a TR250 transmission. The whole transmission and OD was rebuilt by=C2=
=A0a British car specialist of 40+ years. =C2=A0His employee has also been=
 working on British cars for years, and is a transmission specialist. =C2=A0=
They've rebuilt literally 100s of transmissions and ODs. =C2=A0They had 4 =
OD cores on their bench as they were showing me different parts of the sys=
tem.=0A=0ASymptom -=C2=A0when I'm accelerating and flip the switch for OD,=
 it doesn't go into OD until I let up. =C2=A0When in 2-3 or 4th gear, OD e=
ngaged, and punch it, it will downshift like an automatic transmission whi=
le I accelerate, then shift back into OD when I let up.=0A=0AI'm not techn=
ical enough to know how to describe all what they told me, but I'll try. =C2=
=A0First off, I forwarded the comments when I posted this issue a couple o=
f weeks=C2=A0ago, and keep in mind it's not the easy/obvious things. =C2=A0=
They've checked all the electrical, solenoids, ground, oil type, etc. =C2=A0=
When in OD it's not slipping. =C2=A0They've tested the PSI with a gauge at=
tached while driving down the expressway, and jacked up with the wheels of=
f the ground. =C2=A0=0A=0AThe issue is that it's not getting high enough P=
SI. =C2=A0It's over 400 PSI, but it needs to be 490 to over 500, I think t=
hey said 520. =C2=A0They've taken the transmission back out, taken the OD =
all apart, and there's nothing obvious. They've changed the piston in the =
pump. Originally it had a pump that would shift softer because I've got a =
torquey engine and the other pump, which they called a competition pump, w=
ould be hard on the differential, but they've got that one in the car now.=
 =C2=A0 They showed me a seal that goes around that piston and said the ne=
w seals=C2=A0are=C2=A0rubber and they got one like the original style that=
 has some sort of metal reinforcement in it to hopefully make a better sea=
l. =C2=A0Not very clear I know, but hopefully that=C2=A0makes sense. =C2=A0=
They've checked the seats where a small ball bearing must make a perfect s=
eal, they all look perfect. =C2=A0They said everything looks absolutely pr=
istine. =C2=A0No scoring down passageways that might not allow maximum PSI=
, etc. =C2=A0They also showed me the lining on a=C2=A0Sun gear they had on=
 the beach, and said mine looked good and the rivets looked original.=C2=A0=
They put it all back together, went for a test drive, and that didn't fix =
it.=0A=0AThey've spent literally 20+ hours on this transmission, plus seve=
ral more hours doing internet research on the problem. =C2=A0As they descr=
ibed everything and what they've checked, which seems like everything, I s=
aid I'd send out this email to the list. =C2=A0Not that they haven't tried=
 everything, but I'm hoping there may be one little nugget of info they ha=
ven't tried, or a test they can run, that will=C2=A0lead to the solution.=0A=
=0AThanks,=0A=0ARye Livingston=0ATriumph Travelers Sports Car Club=0AActiv=
ities Chairman=0A1960 TR3A=0APH: 530-FIND-RYE=

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<html><body><div>Transmission update - for those reading about this for the first time=
, this is a 1960 TR3 with a TR4 OD transmission. Yesterday they said it's =
basically a TR250 transmission. The whole transmission and OD was rebuilt =
by&nbsp;a British car specialist of 40+ years. &nbsp;His employee has also=
 been working on British cars for years, and is a transmission specialist.=
 &nbsp;They've rebuilt literally 100s of transmissions and ODs. &nbsp;They=
 had 4 OD cores on their bench as they were showing me different parts of =
the system.</div><div><br data-mce-bogus=3D"1"></div><div>Symptom -&nbsp;w=
hen I'm accelerating and flip the switch for OD, it doesn't go into OD unt=
il I let up. &nbsp;When in 2-3 or 4th gear, OD engaged, and punch it, it w=
ill downshift like an automatic transmission while I accelerate, then shif=
t back into OD when I let up.</div><div><br data-mce-bogus=3D"1"></div><di=
v>I'm not technical enough to know how to describe all what they told me, =
but I'll try. &nbsp;First off, I forwarded the comments when I posted this=
 issue a couple of weeks&nbsp;ago, and keep in mind it's not the easy/obvi=
ous things. &nbsp;They've checked all the electrical, solenoids, ground, o=
il type, etc. &nbsp;When in OD it's not slipping. &nbsp;They've tested the=
 PSI with a gauge attached while driving down the expressway, and jacked u=
p with the wheels off the ground. &nbsp;</div><div><br data-mce-bogus=3D"1=
"></div><div>The issue is that it's not getting high enough PSI. &nbsp;It'=
s over 400 PSI, but it needs to be 490 to over 500, I think they said 520.=
 &nbsp;They've taken the transmission back out, taken the OD all apart, an=
d there's nothing obvious. They've changed the piston in the pump. Origina=
lly it had a pump that would shift softer because I've got a torquey engin=
e and the other pump, which they called a competition pump, would be hard =
on the differential, but they've got that one in the car now. &nbsp; They =
showed me a seal that goes around that piston and said the new seals&nbsp;=
are&nbsp;rubber and they got one like the original style that has some sor=
t of metal reinforcement in it to hopefully make a better seal. &nbsp;Not =
very clear I know, but hopefully that&nbsp;makes sense. &nbsp;They've chec=
ked the seats where a small ball bearing must make a perfect seal, they al=
l look perfect. &nbsp;They said everything looks absolutely pristine. &nbs=
p;No scoring down passageways that might not allow maximum PSI, etc. &nbsp=
;They also showed me the lining on a&nbsp;Sun gear they had on the beach, =
and said mine looked good and the rivets looked original.&nbsp;They put it=
 all back together, went for a test drive, and that didn't fix it.<br></di=
v><div><br data-mce-bogus=3D"1"></div><div>They've spent literally 20+ hou=
rs on this transmission, plus several more hours doing internet research o=
n the problem. &nbsp;As they described everything and what they've checked=
, which seems like everything, I said I'd send out this email to the list.=
 &nbsp;Not that they haven't tried everything, but I'm hoping there may be=
 one little nugget of info they haven't tried, or a test they can run, tha=
t will&nbsp;lead to the solution.</div><div><br></div><div>Thanks,</div><d=
iv><br data-mce-bogus=3D"1"></div><div>Rye Livingston<br></div><div>Triump=
h Travelers Sports Car Club</div><div>Activities Chairman</div><div>1960 T=
R3A</div><div>PH: 530-FIND-RYE</div></body></html>=

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** [email-masked] **

Archive: http://www.team.net/archive

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From: Rye Livingston <[email-masked]>
Date: Fri, 10 Jun 2016 20:13:46 +0000 (GMT) MailServer16D250.25128-16A-982-e9c2ef2b8d8a t=1465589627; bh=u3d2Axcn5yt9tqfLLa1p2UbCcahSm9nbAsQzJqBsSxY=; h=MIME-version:Content-type:To:From:Subject:Date:Message-id; b=aYgtzjXYwZcUNHnPNDSEoEH7Ndr5S4X5XEkSMlBchOqKfOmfMsuOU+SYco1OEfOE2 S17N6BU9ZjcOyZvQxr6ih8aTKCp0eZjTiEpWH6c5s+0YCnyIIB1BkpdO40O9u1wtC0 9bWPCSarCEHIuYwUxzlPE77YYJzmyKveBSTfjXEQPcxJqUP1yHvV/xjbbmWgiO30xC cUUc0P1CAS1zS4CuN3rN27G3iK9augJDszQ1yM/ZTR6Ej4ovChAvLqClNYhmtP5n1Y NfHKcnK7qZ2dd3Bvc+gHNbtPtgoq6UKt9E9fXz6mDLhHW1OQqS4BRBPoejBqKbNYIE FGYJeCAmLMMfQ==

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I'm pretty sure when they were driving down the expressway, reading the ga=
uge, it was still happening. =C2=A0That was the reason for the test drive =
with the gauge attached, but I'll double check. =C2=A0I believe they check=
ed the other things you mentioned, but again, I'll double check and forwar=
d your email to them.=0A=0AThanks,=0A=0ARye=0A=0A=0A=0A=0ARye=0APH: 530-FI=
ND-RYE=0A=0AOn Jun 10, 2016, at 01:08 PM, [email-masked] wrote:=0A=0A=
If you really have 400 psi when the problem is happening (you didn't menti=
on if they saw the problem while driving with the gauge attached), then IM=
O the problem is somewhere else. I drove for quite a few years on only 320=
 psi or so, and the only time it would slip was while shifting into 2nd ge=
ar under full throttle. It would shift and hold just fine in 4th gear (whe=
re the OD only has to handle half the torque of 2nd gear).=0AI'm not sayin=
g that it shouldn't be higher, only that I don't think that is the source =
of the symptoms you describe.=0ADid they check that the solenoid was conti=
nuing to draw current when the problem happens?=0AHave they checked the va=
lve ball lift?=C2=A0 The mechanism sometimes wears so the setting lever is=
 no longer accurate. If the ball was not moving far enough, and there is a=
 leak on the piston side of the pump (which might explain the lack of pres=
sure), the operating pistons might not see the measured 400 psi.=0A--=C2=A0=
 Randall=

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<html><body><div>I'm pretty sure when they were driving down the expressway, reading t=
he gauge, it was still happening. &nbsp;That was the reason for the test d=
rive with the gauge attached, but I'll double check. &nbsp;I believe they =
checked the other things you mentioned, but again, I'll double check and f=
orward your email to them.</div><div><br data-mce-bogus=3D"1"></div><div>T=
hanks,</div><div><br data-mce-bogus=3D"1"></div><div>Rye</div><div><br dat=
a-mce-bogus=3D"1"></div><div><br data-mce-bogus=3D"1"></div><div><br data-=
mce-bogus=3D"1"></div><div><br data-mce-bogus=3D"1"></div><div class=3D"x-=
apple-signature"><pre style=3D"font-family: 'SFNSText','Helvetica Neue', H=
elvetica, sans-serif; font-size: 15px; white-space: pre-wrap; word-wrap: b=
reak-word;" data-mce-style=3D"font-family: 'SFNSText','Helvetica Neue', He=
lvetica, sans-serif; font-size: 15px; white-space: pre-wrap; word-wrap: br=
eak-word;">Rye=0APH: 530-FIND-RYE</pre></div><div><br>On Jun 10, 2016, at =
01:08 PM, [email-masked] wrote:<br><br></div><div><blockquote type=3D=
"cite"><div class=3D"msg-quote"><p dir=3D"ltr">If you really have 400 psi =
when the problem is happening (you didn't mention if they saw the problem =
while driving with the gauge attached), then IMO the problem is somewhere =
else. I drove for quite a few years on only 320 psi or so, and the only ti=
me it would slip was while shifting into 2nd gear under full throttle. It =
would shift and hold just fine in 4th gear (where the OD only has to handl=
e half the torque of 2nd gear).</p><p dir=3D"ltr">I'm not saying that it s=
houldn't be higher, only that I don't think that is the source of the symp=
toms you describe.</p><p dir=3D"ltr">Did they check that the solenoid was =
continuing to draw current when the problem happens?</p><p dir=3D"ltr">Hav=
e they checked the valve ball lift?&nbsp; The mechanism sometimes wears so=
 the setting lever is no longer accurate. If the ball was not moving far e=
nough, and there is a leak on the piston side of the pump (which might exp=
lain the lack of pressure), the operating pistons might not see the measur=
ed 400 psi.</p><p dir=3D"ltr">--&nbsp; Randall</p></div></blockquote></div=
></body></html>=

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