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Offline JoshWa

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TDI AHU to 93 Eurovan, but really a question about my transmission
« on: September 29, 2015, 10:51:34 am »
I've got my swap started and will add the link at the bottom.  Wish I would have built it here originally.  My real question though is about removing the extension arm from the transmission.  I've removed the 4 bolts and the speedo sensor.  The arm doesn't want to come off, at least easily.  Is there something else attached inside main housing that is holding it together?

http://forums.tdiclub.com/showthread.php?t=443865

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Offline andrew

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #1 on: September 29, 2015, 01:10:29 pm »
You can't really see much on VagCat (although it references illustration 409-10 and I'm not sure how to find that), but it does look like the four bolts are the only thing holding on the case part.

I wonder if there may be a circlip holding it in.

There's more information on the T4 wiki, but my German is terrible so Google Translate is your friend. Hopefully this will help: Google Translate Link

Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #2 on: September 29, 2015, 03:00:35 pm »
You must gently but firmly beat the arm off the Trans housing. There is a strike pad built into the trumpet arm for this purpose. Just be smart and use a deadblow or other rubber malet, no steel!

Justin


2000 EVW 5-spd TDI
Justin
2000 EVW 1.9l TDI 5spd Syncro

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Offline rcowan

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #3 on: September 30, 2015, 05:03:53 pm »
I just did this last night. Pretty much what Justin said. I used a rubber mallet. I find it easier to remove the axle/flange first and leave the housing on the gearbox case. I used the flange that the CV bolts to as the point to hammer on with the rubber mallet. Once the axle is removed, the housing comes off a bit easier. Again, just the rubber mallet to get the housing off also.

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Offline JoshWa

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #4 on: October 01, 2015, 11:00:52 am »
Great, I'll give it a try.  I've got a rubber mallet.  I should have asked before, but I haven't been able to find the gasket that goes in there.  I'm sure that's the cause of the leak.  From diagrams I've looked at, there is just a flat ring.  Is that gasket sold on it's own, or would have to be in a kit?  I must not have set my options to get emailed upon replies, so thanks for the quick responses, I just didn't see them till I just went in.

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Offline Farther

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #5 on: October 01, 2015, 12:42:57 pm »
Dead blow hammers are worth the expense and are cheap at Harbor Freight.
Thanks,
~Farther

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Offline JoshWa

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #6 on: October 03, 2015, 10:49:27 am »
Still no luck getting the trumpet off with my rubber mallet.  Time to get a dead blow hammer.

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Offline JoshWa

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #7 on: October 03, 2015, 11:21:53 pm »
Trumpet came off just fine with the rubber mallet.  Just had to hit it harder.  The wasn't a gasket in there.  Probably the reason for the leak.

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Offline rcowan

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #8 on: October 05, 2015, 11:57:38 am »
If my memory is correct, there is a seal where the axle comes out and an oring where it mates with the transmission case. I don't think there are any gaskets in there.

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Offline JoshWa

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #9 on: October 06, 2015, 06:22:38 pm »
You were right.  There's an oring in there.  Has a little chunk out of it.

Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #10 on: October 08, 2015, 10:23:39 pm »
Here is the trumpet O-ring p/n: 098321183.  For reference it is 85x2.5mm.

Best,
Justin
Justin
2000 EVW 1.9l TDI 5spd Syncro

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Offline JoshWa

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Re: TDI AHU to 93 Eurovan, but really a question about my transmission
« Reply #11 on: October 08, 2015, 10:31:09 pm »
Thanks.  I was having a tough time figuring out a replacement, because I couldn't find the part number.