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I have rebuilt dozens of these, both for my race car and a number of stree=
t cars.=C2=A0 For the race car, I found a machinist (ex TR-3 racer) who cou=
ld drill and tap 2 additional 1/4" holes in the adapter plate & gearbox hou=
sing, to the inside of the 2 bottom bolts that are about 6" apart.=C2=A0 Th=
ese bolts are as close to the gearbox housing as he could get, and still fi=
t them in.=C2=A0 I think we used a short (3/4" long?) 1/4" grade 8 bolt wit=
h Locktite.=C2=A0 This seemed to reduce the leakage considerably.
If Bryan Brazelton has one of my old overdrive gearboxes around, perhaps he=
could check the exact location of the 2 additional bolts and let the FOT k=
now.=C2=A0 I know I sold at least one close ratio overdrive gearbox with th=
e car and a straight close ration 4 speed.=C2=A0 Don't know exactly what is=
with the car today.
Cheers.
Jack Wheeler
----- Forwarded Message ----- From: fubog1 via Fot <fot@autox.team.net>T=
o: fot@autox.team.net <fot@autox.team.net>Sent: Monday, November 8, 2021, 1=
0:01:27 AM ESTSubject: Re: [Fot] Type A OD leaks
I don't use the gasket because it can compress slightly when things get l=
oaded in use.I go metal on metal, chamfer/deburr/dress the mating faces, cl=
ean, Permatex "right stuff", good grade 8 bolts & red loctite.Done deal...
Glen Efinger
=20
=20
-----Original Message-----
From: Greg Blake via Fot <fot@autox.team.net>
To: Fot <fot@autox.team.net>
Sent: Sun, Nov 7, 2021 5:50 pm
Subject: [Fot] Type A OD leaks
I removed my TR6 type A OD box out of the TR3 race car today. It was remove=
d because the last time on track, it was leaking badly.=20
To my surprise, I found that the OD adapter plate was very loosely attached=
to the rear of the transmission, in fact two bolts had completed backed ou=
t and I found them when I removed the accumulator piston cover. Upon furthe=
r disassembly I found that all of the adapter bolts were loose.=20
When I built this transmission 2 years ago, I used red locktite on all of t=
hese bolts. I also had use the thin gasket with hylomar. Has anyone every s=
een these bolts back out like this before?=C2=A0 Any suggestions on repair =
work to make sure this doesn=E2=80=99t happen again?
I=E2=80=99m thinking of drilling all bolt heads and safety wiring all of th=
e.=C2=A0 Have also thought of using helicoil on all of these since they are=
threaded into aluminum.=20
Appreciate all thoughts on the mater.=20
Greg
Sent from my iPhone
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
m
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
yahoo.com
=20
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<html><head></head><body><div class=3D"ydp3c7e44a5yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
<div dir=3D"ltr" data-setdir=3D"false">I have rebuilt dozens of the=
se, both for my race car and a number of street cars. For the race ca=
r, I found a machinist (ex TR-3 racer) who could drill and tap 2 additional=
1/4" holes in the adapter plate & gearbox housing, to the inside of th=
e 2 bottom bolts that are about 6" apart. These bolts are as close to=
the gearbox housing as he could get, and still fit them in. I think =
we used a short (3/4" long?) 1/4" grade 8 bolt with Locktite. This se=
emed to reduce the leakage considerably.</div><div dir=3D"ltr" data-setdir=
=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">If Bryan Brazel=
ton has one of my old overdrive gearboxes around, perhaps he could check th=
e exact location of the 2 additional bolts and let the FOT know. I kn=
ow I sold at least one close ratio overdrive gearbox with the car and a str=
aight close ration 4 speed. Don't know exactly what is with the car t=
oday.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr=
" data-setdir=3D"false">Cheers.</div><div dir=3D"ltr" data-setdir=3D"false"=
><br></div><div dir=3D"ltr" data-setdir=3D"false">Jack Wheeler<br></div><di=
v><br></div>
=20
</div><div id=3D"ydp2dfa59f4yahoo_quoted_6433580050" class=3D"ydp2d=
fa59f4yahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
<div>----- Forwarded Message -----</div>
<div><b>From:</b> fubog1 via Fot <fot@autox.team.net>=
</div><div><b>To:</b> fot@autox.team.net <fot@autox.team.net></div><d=
iv><b>Sent:</b> Monday, November 8, 2021, 10:01:27 AM EST</div><div><b>Subj=
ect:</b> Re: [Fot] Type A OD leaks</div><div><br></div>
<div><div id=3D"ydp2dfa59f4yiv3508050693"><div><div style=
=3D"color: black; font-style: normal; font-weight: normal; font-stretch: no=
rmal; font-size: 10pt; line-height: normal; font-family: Arial, Helvetica, =
sans-serif; font-size-adjust: none;">
<div> <font size=3D"2">I don't use the gasket because it can compress sligh=
tly when things get loaded in use.</font></div>
<div><font size=3D"2">I go metal on metal, chamfer/deburr/dress the mating =
faces, clean, Permatex "right stuff", <span style=3D"font-weight:bold;">goo=
d </span>grade 8 bolts & red loctite.</font></div>
<div><font size=3D"2">Done deal...</font></div>
<div><br clear=3D"none">
</div>
<div><font size=3D"2">Glen Efinger</font><br clear=3D"none">
</div>
<div> <br clear=3D"none">
</div>
<div> <br clear=3D"none">
</div>
<div id=3D"ydp2dfa59f4yiv3508050693yqtfd16103" class=3D"ydp2dfa59f4yiv35080=
50693yqt3317679472"><div style=3D"font-family:arial, helvetica;font-size:10=
pt;color:black;"><font size=3D"2">-----Original Message-----<br clear=3D"no=
ne">
From: Greg Blake via Fot <fot@autox.team.net><br clear=3D"none">
To: Fot <fot@autox.team.net><br clear=3D"none">
Sent: Sun, Nov 7, 2021 5:50 pm<br clear=3D"none">
Subject: [Fot] Type A OD leaks<br clear=3D"none">
<br clear=3D"none">
</font><div dir=3D"ltr">I removed my TR6 type A OD box out of the TR3 race =
car today. It was removed because the last time on track, it was leaking ba=
dly. <br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">To my surprise, I found that the OD adapter plate was very=
loosely attached to the rear of the transmission, in fact two bolts had co=
mpleted backed out and I found them when I removed the accumulator piston c=
over. Upon further disassembly I found that all of the adapter bolts were l=
oose. <br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">When I built this transmission 2 years ago, I used red loc=
ktite on all of these bolts. I also had use the thin gasket with hylomar. H=
as anyone every seen these bolts back out like this before? Any sugge=
stions on repair work to make sure this doesn=E2=80=99t happen again?<br cl=
ear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">I=E2=80=99m thinking of drilling all bolt heads and safety=
wiring all of the. Have also thought of using helicoil on all of the=
se since they are threaded into aluminum. <br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">Appreciate all thoughts on the mater. <br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">Greg<br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">Sent from my iPhone<br clear=3D"none">
</div>
<div dir=3D"ltr">_______________________________________________<br clear=
=3D"none">
</div>
<div dir=3D"ltr"><a shape=3D"rect" href=3D"mailto:fot@autox.team.net"; rel=
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http://www.fot-racing.com
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