<html><body>David has probably, over the years, pulled more transmissions than all of us combined. Listen to what he is saying. Pull the whole unit as one from the engine backplate.<div><br></div><div>I have this task awaiting me in a gearbox swap. If you read the shop manual; even with the trans attached it will require you to get some clearance -loosen the motor mounts and remove the radiator as you must raise and tilt the engine 5" in order to clear the GB/OD unit at the rear.</div><div><br></div><div>Put a jack at the engine backplate and place a board across the X opening (for safety) and use a rope to lift the unit <b>after</b> it is clear of the clutch-do not stress the clutch or upset the fit of the pressure plate by letting it rest on the splines-that way it will slip right back in and no damage is done to the driveline. It must be a smooth, slick move out, and then in as well, or you are in trouble. Unit is heavy to say the least. </div><div><br></div><div>If you did successfully get the OD off and out-putting it back is another story as you must tie back the oil pump plunger (else it james into the main bushing and bends or breaks the cam wheel) and how will you line up the mainshaft into the OD clutch and insure the 8 springs end up on their pegs? That all should be done vertically on the bench-see some online YOUTUBE "experts" fumble thru that process!</div><div><br></div><div>Best if done with two people one on the top and one (safely) below to hand it backward and guide it forward upon return. Take your time (as David suggests-no shortcuts)-drink beer after its out and in. Hank, healeyhelper.com<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "David Nock BCS via Healeys" <healeys@autox.team.net><br>To: sdesalvo@frontiernet.net, healeys@autox.team.net<br>Cc: <br>Sent: Friday April 28 2023 11:35:45AM<br>Subject: Re: [Healeys] 100-4 od<br><br>
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<div>Did this once and will NEVER try it again. You will have to
slide the overdrive into the driveshaft tunnel and get the
overdrive out. Then you have a fight to get it back in.</div>
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<div>I would recommend that after you get the overdrive out, remove
the transmission, install the overdrive onto the transmission. Then
install the complete unit into the car.</div>
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<div>50 years of working on British cars and I have found that
there is NO short cuts. Just bite the bullet and do it right the
first time.</div>
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<div style="font-size:12pt;font-family:Century;color:#000000;">David
Nock<br>
British Car Specialists<br>
209-948-8767<br>
www.britishcarspecialists.com</div>
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<div><b>From:</b> <a title="healeys@autox.team.net">sdesalvo--- via Healeys</a></div>
<div><b>Sent:</b> Friday, April 28, 2023 7:10 AM</div>
<div><b>To:</b> <a title="healeys@autox.team.net">healeys@autox.team.net</a></div>
<div><b>Subject:</b> [Healeys] 100-4 od</div>
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<div dir="ltr">Good afternoon everyone,</div>
<div dir="ltr">I am trying to remove my od without removing the
tranny. I know it is not a great way to go, but I am into it.
Do I lift the od and tranny as a unit and if so how high do i dare
Iift the unit without damaging something? I have separated the od
and tranny about 2 inches and have the od slid back so it is
sitting on top of the 2 rubber mounts. The chassis keeps me from
sliding it back any further back unless I can raise the tranny/od
high enough to clear the chassis. I would appreciate any
advice.</div>
<div dir="ltr">Thanks in advance,</div>
<div dir="ltr">Sam DeSalvo</div>
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