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<div dir="ltr" data-setdir="false">Great idea, Bob!</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I used that boss to install a 3/8 NPT to AN6 adapter and run 3/8" hose to a remote catch tank. Pretty mush zero tranny leakage with that setup.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">But if you crank your engine to big RPM's, the transmission gets H-O-T and the pressure has to go somewhere.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Regards,</div><div dir="ltr" data-setdir="false">sBob Lang</div><div><br></div>
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On Wednesday, October 22, 2025 at 11:20:04 AM EDT, Bob Kramer Gmail via Fot <fot@autox.team.net> wrote:
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<div><div id="ydpd105ab6cyiv9447186494"><div>All great advice. Another easy approach is to add vent to the cover on the boss where the TR2 dipstick once lives. These are sold online:<div><br clear="none"><div><img src="cid:9HJp9Wxypr77PSAIYKGV" alt="image" data-id="1761154053812"></div><div><br clear="none"></div><div><br clear="none" id="ydpd105ab6cyiv9447186494lineBreakAtBeginningOfSignature"><div dir="ltr">You only get one chance at life, make it a TRIUMPH.</div><div dir="ltr"><div id="ydpd105ab6cyiv9447186494yqtfd04251" class="ydpd105ab6cyiv9447186494yqt2959574166"><br clear="none"><blockquote type="cite">On Oct 22, 2025, at 9:56 AM, Tony Garmey via Fot <fot@autox.team.net> wrote:<br clear="none"><br clear="none"></blockquote></div></div><div id="ydpd105ab6cyiv9447186494yqtfd38032" class="ydpd105ab6cyiv9447186494yqt2959574166"><blockquote type="cite"><div dir="ltr">
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The oem vent is a small hole in the tail shaft under the shift tower.
<div>If your sure that the o rings are leaking - go ahead and pop of the gearbox top and …</div>
<div>*Add a dash4 fitting for a vent </div>
<div>*drill and lock wire the set screws that loc the selector forks to the rails</div>
<div>* tach weld the centre blade at the end of the rail .</div>
<div>* change the o rings </div>
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<div>British frame and engine for the majority of the engine parts. </div>
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<div dir="ltr">Sent from my iPhone</div>
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<blockquote type="cite">On Oct 22, 2025, at 7:23 AM, mhmolson--- via Fot <fot@autox.team.net> wrote:<br clear="none">
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<p class="ydpd105ab6cyiv9447186494MsoNormal"><span style="font-size:11.0pt;">Good morning, I have an issue with transmission oil leaking out of the three o ring seals where the transmission selector shafts enter the top cover. This only happens during high rpms. This is an overdrive
unit.</span></p>
<p class="ydpd105ab6cyiv9447186494MsoNormal"><span style="font-size:11.0pt;">Has anyone added additional venting to the top cover. I understand there is possibly a small vent hole in the front however I have not looked at this yet. I am also going to build a TR4 motor this winter and
am looking for direction and contacts for pistons, liners, and rods. I am good at mechanical logistics, and I have built two strokes, I have also been around engine builders and understand, however this will be my first real build. Yes, I understand that certain
things will be left to the pro’s</span></p>
<p class="ydpd105ab6cyiv9447186494MsoNormal"><span style="font-size:11.0pt;">Help appreciated</span></p>
<p class="ydpd105ab6cyiv9447186494MsoNormal"><span style="font-size:11.0pt;">Matt</span></p>
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