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Hi Glenn,
Having built numerous OD units, I have run into a couple of instances =
where the cone clutch needed to "bed in". If you installed a new cone =
clutch, the angle of the linings may not be an exact match to the brake =
ring and annulus and it will stick when applied. A good swift rap (or =
two or three) on the exterior of the brake ring with a dead blow hammer =
will release the clutch. Had this happen with Henry Frye's race car at =
Summit Point a few years ago. Driving around the paddock with the =
gearbox cover off and excersising the OD, releasing it with the dead =
blow hammer. It eventually worked it's way in with time.=20
Tim Hutchisen
Penn Ridge Motors
Norway, ME
=20
From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of Glenn Franco =
via Fot
Sent: Thursday, December 26, 2019 5:04 PM
To: FOT list <fot@autox.team.net>
Subject: [Fot] A-Type Over Drive Question Again
=20
Happy New Year
Quick Question
I have rebuilt numerous A-types over the last few years, but I have one =
that's been giving us fits.
Transmission was a TR6 and the mainshaft was replaced with the proper =
overdrive shaft for the A-type.
The A-type appears to be an early one with steel piston rings on the =
apply pistons.=20
The pump was replaced and puts out +300 psi during testing.
The overdrive and trans was tested by back spinning from the tailshaft =
flange with an electric motor.
The overdrive appears to be engaged and it appears that the pressure =
will not drop.
The pressure relief at the pump was removed and the accumulator was =
loosened to relieve the pressure.
Now trans in neutral the output shaft of the overdrive appears to be =
locked up and will not spin.
Any ideas??
Thanks in advance
Glenn
=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'=
>Hi Glenn,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Having built numerous OD units, I have run into a couple of instances =
where the cone clutch needed to "bed in". If you installed a =
new cone clutch, the angle of the linings may not be an exact match to =
the brake ring and annulus and it will stick when applied. A good swift =
rap (or two or three) on the exterior of the brake ring with a dead blow =
hammer will release the clutch. Had this happen with Henry Frye's race =
car at Summit Point a few years ago. Driving around the paddock with the =
gearbox cover off and excersising the OD, releasing it with the dead =
blow hammer. It eventually worked it's way in with time. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Tim Hutchisen<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Penn Ridge Motors<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Norway, ME<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><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'> =
Fot [mailto:fot-bounces@autox.team.net] <b>On Behalf Of </b>Glenn Franco =
via Fot<br><b>Sent:</b> Thursday, December 26, 2019 5:04 =
PM<br><b>To:</b> FOT list <fot@autox.team.net><br><b>Subject:</b> =
[Fot] A-Type Over Drive Question Again<o:p></o:p></span></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p =
class=3DMsoNormal>Happy New Year<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Quick Question<o:p></o:p></p></div><div><p =
class=3DMsoNormal>I have rebuilt numerous A-types over the last few =
years, but I have one that's been giving us =
fits.<o:p></o:p></p></div><div><p class=3DMsoNormal>Transmission was a =
TR6 and the mainshaft was replaced with the proper overdrive shaft for =
the A-type.<o:p></o:p></p></div><div><p class=3DMsoNormal>The A-type =
appears to be an early one with steel piston rings on the apply pistons. =
<o:p></o:p></p></div><div><p class=3DMsoNormal>The pump was replaced and =
puts out +300 psi during testing.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>The overdrive and trans was tested by back spinning =
from the tailshaft flange with an electric =
motor.<o:p></o:p></p></div><div><p class=3DMsoNormal>The overdrive =
appears to be engaged and it appears that the pressure will not =
drop.<o:p></o:p></p></div><div><p class=3DMsoNormal>The pressure relief =
at the pump was removed and the accumulator was loosened to relieve the =
pressure.<o:p></o:p></p></div><div><p class=3DMsoNormal>Now trans in =
neutral the output shaft of the overdrive appears to be locked up and =
will not spin.<o:p></o:p></p></div><div><p class=3DMsoNormal>Any =
ideas??<o:p></o:p></p></div><div><p class=3DMsoNormal>Thanks in =
advance<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Glenn<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div></div></div></body></html>
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http://www.fot-racing.com
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