Transmission repair tips?

Tiny
LUMBERJACK_JEFF
  • MEMBER
  • 1999 HYUNDAI ELANTRA
  • 100,000 MILES
Hyundai Elantra 1999
5 speed transmission
On the front of the transmission, directly below the fill plug is another bolt with 12mm head.
What does this bolt do?
It apparently threads into a movable (nut?) Inside the transmission.
The "movable" part is causing us trouble because it has become displaced making it impossible to replace the bolt.
Suggestions?
Tuesday, February 21st, 2012 AT 2:42 AM

7 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What is the transmission doing?
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Tuesday, February 21st, 2012 AT 2:48 AM
Tiny
LUMBERJACK_JEFF
  • MEMBER
  • 4 POSTS
The transmission was removed for a clutch replacement. The bolt was removed during the process and can't be replaced.

The car was driven in the driveway with no unusual behavior, but there's a hole in the side of the transmission and obviously something is loose inside.
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Tuesday, February 21st, 2012 AT 5:31 AM
Tiny
RASMATAZ
  • MECHANIC
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The best way to find out is to drop the tranny and investigate the purpose of that bolt-My references don't cover that bolt sorry-
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Tuesday, February 21st, 2012 AT 5:38 AM
Tiny
LUMBERJACK_JEFF
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Thanks rasmataz. I can see the (nut) inside the casing through the hole and can manipulate it *almost* into position to replace the bolt, but it is constrained somehow.

Oh well, back onto the lift.
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Tuesday, February 21st, 2012 AT 5:44 AM
Tiny
KHLOW2008
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You had mistakenly removed the bolt for holding the reverse gear shaft.

The bolt is tapered at the end so once the internal threads are almost centralised, use the bolt to slightly tap and turn in.
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Tuesday, February 21st, 2012 AT 1:10 PM
Tiny
LUMBERJACK_JEFF
  • MEMBER
  • 4 POSTS
Thanks for the diagram. The block is rotated about 30° from alignment and won't wiggle into place. Now that I know that it's part of the reverse gear, I'll try joggling the wheels on the lift while the transmission is in reverse.

If I have to take apart the transmission to fix this mistake, how many hours should I allow?
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Tuesday, February 21st, 2012 AT 3:36 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I don't have access to the labor time in our database but for me it should take about 4 hours inclusive of removal and installation of the transmission.

Try using a sharp pointer and with transmission in reverse and, slowly wiggle the hole into position. It is not really easy to move the shaft and you need to be gentle to avoid it getting stuck.
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Tuesday, February 21st, 2012 AT 4:24 PM

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