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Gear Box Locking Screw Question

Posted by Astrostrat89

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Gear Box Locking Screw Question #1
Astrostrat89 Jeffrey Jankosky london, USA 1971 MG Midget MkIII "Blue Meanie"	Posted: September 14, 2012 08:20PM Registered: 11 months ago Posts: 283

1971 1275 Midget.

I'm being overly cautious here because transmissions scare the hell out of me. I think the answer is pretty obvous but asking anyway. Feel free to poke fun. spinning smiley sticking its tongue out

I am 99% sure the screw in the red circle is the "Locking Screw" from pg 132 Haynes manual.

Mine is out several turns, that's the way it came from the PO, I assume it needs to be tighten down as there was some oil leaking around it? Any reason for it to be out like that? Can I just tighten it down?

I did read this thread here but it seemed it was for a 1500

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Re: Gear Box Locking Screw Question #2
refisk Rick Fisk Frankenmuth, Michigan, USA 1959 Austin-Healey Sprite 1961 Austin-Healey Sprite 1979 MG Midget 1500 "Party Midget"	Posted: September 14, 2012 08:49PM Registered: 1 year ago Posts: 2,366

That bolt is the reverse shaft locking screw. It holds in place the shaft that the reverse gear rides on. It should be tight, not high torque or anything, but tight. When snugged up it shouldn't leak.

Rick

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Re: Gear Box Locking Screw Question #3
Astrostrat89 Jeffrey Jankosky london, USA 1971 MG Midget MkIII "Blue Meanie"	Posted: September 14, 2012 08:57PM Registered: 11 months ago Posts: 283

In reply to # 2170435 by refisk That bolt is the reverse shaft locking screw. It holds in place the shaft that the reverse gear rides on. It should be tight, not high torque or anything, but tight. When snugged up it shouldn't leak.

Rick

Thanks!

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Re: Gear Box Locking Screw Question #4
Billm Bill Masquelier Santee, Ca, USA 1965 MG Midget MkII	Posted: September 14, 2012 11:27PM Registered: 6 years ago Posts: 1,511

That screw goes into a hole in a steel shaft but threads into the aluminum housing, DON'T force it in!!! you will just strip out the aluminum threads and have a REAL leak!
The only safe fix is to (first drain the trans oil) remove the screw and look up into the hole- hopefully you will see that the hole in the shaft is only a little bit misaligned and you can align it with a tiny crosspoint screwdriver or similar then put the screw back in properly.
If you can't align the hole then you have a trans disassemble in your near future.
BillM

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Re: Gear Box Locking Screw Question #5
Astrostrat89 Jeffrey Jankosky london, USA 1971 MG Midget MkIII "Blue Meanie"	Posted: September 15, 2012 12:04PM Registered: 11 months ago Posts: 283

In reply to # 2170572 by Billm That screw goes into a hole in a steel shaft but threads into the aluminum housing, DON'T force it in!!! you will just strip out the aluminum threads and have a REAL leak!
The only safe fix is to (first drain the trans oil) remove the screw and look up into the hole- hopefully you will see that the hole in the shaft is only a little bit misaligned and you can align it with a tiny crosspoint screwdriver or similar then put the screw back in properly.
If you can't align the hole then you have a trans disassemble in your near future.
BillM

It was not completely out, so I just snugged it up. I just wanted to make sure it wasn't some adjuster that was supposed to be a little out.

Thanks

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