What Have I Done?, Undid the 17mm bolt above oil plug
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Altezza Club Of NZ/Australia->Altezzas - AS200 • AS300 • RS200 • Gita • IS200 • IS250 • IS300 • IS350 • IS-F->Driveline - Clutch • Gearbox • Differentials   |
What Have I Done?, Undid the 17mm bolt above oil plug| peter0991 |
Posted: Apr 21 2012, 08:10 PM
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Soccer Mom  Group: Std. Member Posts: 2 Member No.: 6,433 Joined: 6-February 12  |
Hi guys,
During the process of changing gearbox oil, i undid the 17mm bolt a few inches above the oil filler plug.  Its the one that can be seen right at the top of the picture. Does anyone know what it does? And what the damage could be? I heard that it holds something inside the gearbox in place. Please share your wisdom  |
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| peter0991 |
Posted: Apr 23 2012, 12:50 AM
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Soccer Mom Group: Std. Member Posts: 2 Member No.: 6,433 Joined: 6-February 12 |
Il just talk to myself a bit here
 Started the car up today while it was on axle stands. All the gears engage fine with no problem. But still i would not recommend undoing that bolt to anyone. The bolt is called 'shift interlock plate bolt' and i believe it is some kind of a detent. One member on tezzaworld had a problem when he undid that bolt and heard something drop inside...ended up in a gearbox rebuild in order to put it back in place. The reason i undid the bolt is to get oil in the gearbox as the filler bolt was stripped. It worked, but i have lost some hair over it in the past couple of days |
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| Bry |
Posted: Apr 23 2012, 02:17 AM
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Body-Kitted Group: VIP Member Posts: 412 Member No.: 6,444 Joined: 29-February 12 |
For future reference, you can remove the shifter plate and fill froM
The top... |
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| roman |
Posted: Apr 24 2012, 11:07 AM
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Lowered Group: Std. Member Posts: 243 Member No.: 861 Joined: 1-August 06 |
I've used that trick on some other Toyota gearboxes, but as best I can see it's not possible with Altezza box, as the selector shaft protrudes externally from the box?
Rather than W series box etc where the shifter is integrated into the casting of the tail section. |
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| Bry |
Posted: Apr 24 2012, 12:34 PM
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Body-Kitted Group: VIP Member Posts: 412 Member No.: 6,444 Joined: 29-February 12 |
News to me! never found a box I couldn't do that on... but then again I haven't done it to my altezza yet haha
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| roman |
Posted: Apr 24 2012, 02:58 PM
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Lowered Group: Std. Member Posts: 243 Member No.: 861 Joined: 1-August 06 |
Yeah the shifter assembly bolts on top of the box, but it just rotates/moves an external shaft that's normally under a rubber boot:
 Using a grease gun with a hose on the end is definitely the least swearword inducing way to fill the box back up! Would be a lot easier if it could be filled from the top, but knowing me I'd probably spill gearbox oil all over the interior |
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| Bry |
Posted: Apr 24 2012, 03:02 PM
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Body-Kitted Group: VIP Member Posts: 412 Member No.: 6,444 Joined: 29-February 12 |
Valid point!
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