CaveVan Forum

VW T4 "Eurovans" => Diesel Swap Tech and FAQ => Topic started by: JoshWa on September 29, 2015, 10:51:34 am

Title: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa 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
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: andrew 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 (https://translate.googleusercontent.com/translate_c?act=url&depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=de&tl=en&u=http://www.t4-wiki.de/wiki/Steckwelle&usg=ALkJrhgasZK37ZPP2ml3vEjSo79olPiiDw)
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: greaseworks 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
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: rcowan 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.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa 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.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: Farther on October 01, 2015, 12:42:57 pm: Dead blow hammers are worth the expense and are cheap at Harbor Freight.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa 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.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa 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.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: rcowan 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.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa on October 06, 2015, 06:22:38 pm: You were right. There's an oring in there. Has a little chunk out of it.
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: greaseworks 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
Title: Re: TDI AHU to 93 Eurovan, but really a question about my transmission
Post by: JoshWa 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.