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<div dir="ltr" data-setdir="false">I have rebuilt dozens of these, both for my race car and a number of street cars. For the race car, 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 the 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 seemed to reduce the leakage considerably.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">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 know. I know I sold at least one close ratio overdrive gearbox with the car and a straight close ration 4 speed. Don't know exactly what is with the car today.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Cheers.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Jack Wheeler<br></div><div><br></div>
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<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><div><b>Sent:</b> Monday, November 8, 2021, 10:01:27 AM EST</div><div><b>Subject:</b> Re: [Fot] Type A OD leaks</div><div><br></div>
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<div> <font size="2">I don't use the gasket because it can compress slightly when things get loaded in use.</font></div>
<div><font size="2">I go metal on metal, chamfer/deburr/dress the mating faces, clean, Permatex "right stuff", <span style="font-weight:bold;">good </span>grade 8 bolts & red loctite.</font></div>
<div><font size="2">Done deal...</font></div>
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<div><font size="2">Glen Efinger</font><br clear="none">
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<div id="ydp2dfa59f4yiv3508050693yqtfd16103" class="ydp2dfa59f4yiv3508050693yqt3317679472"><div style="font-family:arial, helvetica;font-size:10pt;color:black;"><font size="2">-----Original Message-----<br clear="none">
From: Greg Blake via Fot <fot@autox.team.net><br clear="none">
To: Fot <fot@autox.team.net><br clear="none">
Sent: Sun, Nov 7, 2021 5:50 pm<br clear="none">
Subject: [Fot] Type A OD leaks<br clear="none">
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</font><div dir="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 badly. <br clear="none">
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<div dir="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 completed backed out and I found them when I removed the accumulator piston cover. Upon further disassembly I found that all of the adapter bolts were loose. <br clear="none">
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<div dir="ltr">When I built this transmission 2 years ago, I used red locktite on all of these bolts. I also had use the thin gasket with hylomar. Has anyone every seen these bolts back out like this before? Any suggestions on repair work to make sure this doesn’t happen again?<br clear="none">
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<div dir="ltr">I’m thinking of drilling all bolt heads and safety wiring all of the. Have also thought of using helicoil on all of these since they are threaded into aluminum. <br clear="none">
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<div dir="ltr">Appreciate all thoughts on the mater. <br clear="none">
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<div dir="ltr">Greg<br clear="none">
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<div dir="ltr">Sent from my iPhone<br clear="none">
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