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Disc Carrier Tranny Rebuild

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Old 01-27-2014, 09:38 AM   #1
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Default Disc Carrier Tranny Rebuild

Hey peeps, I am in the process of buying some parts for the rebuild on my 00' A8L.

I need to buy the "A" drum, but upon inspection of other parts I noticed that what looks to be the disc carrier, (according to some diagrams I saw), has some wear on the bottom.

If this is not the disc carrier (part 72.180) please let me know, what part it is, if I need to replace it. THANKS.

I seemed fairly odd, since all other parts are extremely fine and smooth.

Do I need to replace this part? Or can I just put it back as it is.

Also, by looking at the pictures, any other concerns, or anything I should be looking for besides the drum and disc carrier?

Any answers would be great.

Thanks.
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Last edited by Cks69; 01-27-2014 at 09:40 AM.
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Old 01-27-2014, 10:06 AM   #2
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The top three pictures are indeed the disc carrier 72.180. The bottom are of the input shaft 70.010 and it looks like the spot where the circlip sits was worn off in the majority of the top lip. I wasn't able to tell from the pics how the disc carrier looked.


What was the transmission doing?
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Old 01-27-2014, 10:45 AM   #3
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I would go in to limp mode.

The carrier has a lot of wear in the bottom. You can see in the pictures, very fine grooves. And some wear as well...

Thanks for the reply.

Quote:
Originally Posted by nossisnave View Post
The top three pictures are indeed the disc carrier 72.180. The bottom are of the input shaft 70.010 and it looks like the spot where the circlip sits was worn off in the majority of the top lip. I wasn't able to tell from the pics how the disc carrier looked.


What was the transmission doing?
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File Type: jpg IMG_20140127_100425482.jpg (43.5 KB, 54 views)
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Old 01-27-2014, 11:17 AM   #4
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How did the clutch packs look? If the disc carrier was worn that much I would prob replace it. This is what mine looked like:
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Current:
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Previous:
9th 2001 A6Q 2.7 stock, fun, sold at 226k to a buddy
8th 1996 A6Q good transportation, wrecked and rebuilt
7th 1989 200 TQ Loved the classic styling
6th 1994 90 CS Quattro sold to return to an I5
5th 1990 90 amazingly smooth even at 130 mph, sold w/ 262k
4th 1990 Honda Accord 4dr sold at 252k
(When I didn't care what I drove)
3rd Oldsmobile Cutlass Sierra
2nd Plymouth Reliant
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Old 01-27-2014, 11:43 AM   #5
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Mine is MUCH MORE worn out.

So I will probably go ahead and replace it.

Clutch packs also being replaced as well. They where so so....so I will replace them.

Thanks for the reply!!!

P.S. Besides pentosin, what oil would you recommend?

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Originally Posted by nossisnave View Post
How did the clutch packs look? If the disc carrier was worn that much I would prob replace it. This is what mine looked like:
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Old 01-27-2014, 12:38 PM   #6
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Yeah the amount of wear would make me wonder if the trans ran low on fluid. Wow

Actually IIRC, ZF says don't use Pentosin but regardless the fluid must be ESSO LT 71141 compliant. I ran Wolf's Head synth tranny fluid in my 2.7 A6 for 50k mi w/ no issues and currently running Amalie full synth in my A8L after my rebuild. No need to spend for the Lifeguard fluid IMO. I'm sure Tozo and the rest of the AW crowd have some favorite fluids as well
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Previous:
9th 2001 A6Q 2.7 stock, fun, sold at 226k to a buddy
8th 1996 A6Q good transportation, wrecked and rebuilt
7th 1989 200 TQ Loved the classic styling
6th 1994 90 CS Quattro sold to return to an I5
5th 1990 90 amazingly smooth even at 130 mph, sold w/ 262k
4th 1990 Honda Accord 4dr sold at 252k
(When I didn't care what I drove)
3rd Oldsmobile Cutlass Sierra
2nd Plymouth Reliant
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Old 01-29-2014, 11:23 AM   #7
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That looks like the zf 5hp24 that I rebuilt in my bimmer. That part you have is generally called the a-drum. The usual failure is the uppermost ring snaps off. Yours doesn't look too bad, but while you're at it, a replacement wouldn't be bad. Be sure to replace the valve body casting and pressure regulator valve, as that is what breaks these transmissions. Either the a-drum will break (no go/limp) or the f-piston will flatten (no reverse) from pressure spikes. I got my stuff from eBay and thectsc.com both were excellent. I rebuilt mine at 160k and the clutches looked pretty good, within hundredths of a mm of new. PM me if you need any help, I did mine about a year ago.
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Old 02-04-2014, 07:15 PM   #8
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Can anyone tell me if these parts are the same as the ones in my 2000 A8L transmission?

I need a replacement and found this kit, but really don't know if they are the same. Also, are they the same from a XJ8 Jaguar as well?

http:// www . ebay . com /itm/231148992177?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Thanks.
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Old 02-05-2014, 12:00 AM   #9
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All 5hp24 transmissions should use the same internal components. Those certainly look the the parts in my bimmer transmission. I am wondering why you need planetary parts though, those should last forever.
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Old 02-05-2014, 09:53 AM   #10
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Well, here is why....long story short... a friend of a friend was gonna help me with the rebuild, he took with him a couple of parts stating that they needed to be replaced, and now he ditched town and nowhere to be found.

Now I am stuck with an incomplete transmission.

Now I need help!!

Can anyone tell me what parts am I missing ??

I have included some pictures of what I have. (Obviously there is more, but these are only the small moving internal parts that are loose, and from these same batch parts, are the parts he took).

I am 100% sure one of them is the B disc carrier. Also, I remember him taking some steels, but dont know which ones. And also, him taking another part, which "I BELIEVE" is the part in the lower right corner of the e*ay link I posted.

That is the reason I ask if they are the same, because if that is what I am missing, I need to purchase them.....

BUT, as far as I know, he took more parts, BUT, I really dont know, since I am not an expert here.

ALL HELP IS GREATLY APPRECIATED!!!!

P.S. The part circled in the pictures, has all the clutches inside, the picture does not show the inside...

Quote:
Originally Posted by RocketSurgeon View Post
All 5hp24 transmissions should use the same internal components. Those certainly look the the parts in my bimmer transmission. I am wondering why you need planetary parts though, those should last forever.
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Old 02-05-2014, 11:09 AM   #11
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That sounds like quite a mess to fix. Missing even a single part would result in a non-functioning transmission. Now as far as identifying the parts, I will try my best to get you a copy of the zf service manual for that transmission, it is hugely helpful. I'll toss it up on a server and pm a download link if you would like. Now if you are very thorough you may be able to acquire all of the missing parts, but your best option at this point would probably be to buy the cheapest used 5hp24 available and apply your rebuild kit to that, or scavenging the needed parts. It is much easier to methodically rebuild one clutch at a time and lay the parts out in order as you replace them. But since a bunch of things are missing that makes it difficult. I've heard of some salvage places being over stocked with 5hp24s and selling them for around $500. That may be cheaper than hunting down each component individually since planetaries, steels, and who knows what else has gone missing.
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Old 02-05-2014, 02:51 PM   #12
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If you want pm me w/ your email and I'll send you the spare parts catalog and the repair manual. For the transmission. Rocketsurgeon has a good point about a used one, since it would be together
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Current:
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Previous:
9th 2001 A6Q 2.7 stock, fun, sold at 226k to a buddy
8th 1996 A6Q good transportation, wrecked and rebuilt
7th 1989 200 TQ Loved the classic styling
6th 1994 90 CS Quattro sold to return to an I5
5th 1990 90 amazingly smooth even at 130 mph, sold w/ 262k
4th 1990 Honda Accord 4dr sold at 252k
(When I didn't care what I drove)
3rd Oldsmobile Cutlass Sierra
2nd Plymouth Reliant
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Old 02-05-2014, 03:24 PM   #13
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Thank you both very much for your replies, and the files.....

BUT, I know for a fact, that he took the B drum/hub, which is the one in the very first picture of this post, second he took some round steels, which where the smallest ones, if you can see in the pictures, the smallest steels are missing.

And the third and final part is the one I am missing and dont know which part it is..... as soon as I saw the parts in the e+bay link I posted, the part in the lower left, it immediately came to mind. BUT I am just guessing, because I am not 100% sure.

That is the reason I asked, you guys have more knowledge, and can provide me with more details.

I am pretty sure those 3 things are the only ones he took, but at the same time, it got me wondering if he took something else and I did not notice. He couldn't have taken much as the put everything in a small priority mail box.

So, again, any info by looking at the pictures is appreciated. I know he did not took anything else, (not even small parts or screws) because I was right there with him when he grabbed them. But since I was putting thing inside the trunk at the time, I did not see if he could have taken a small part (around the same size as the ones he took)

So basically, I am looking to see what I am missing in the range of parts I have in the picture, all parts are internal, and a few other things, I just didnt include in the picture. I just focused on the set of parts that where in one group of parts on their own.

Any HELP is greatly appreciated.

THANKS!!!!
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Old 02-05-2014, 07:54 PM   #14
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Well I went page by page with the manual you sent me....

Indeed, what I am missing is the planet set. (Page 95 of the manual you sent me) Also I am attaching the picture for reference.

According to the parts catalog for the BMX (5HP24) and the Audi (5HP24A0 all parts are the same, EXCEPT for part 42.010, which fortunately I hung on for.

So, I will go ahead and buy that.....also inside the tranny there where some clutch packs and the parking brake or something like that....

Anything else you guys see missing that could cause me setbacks?

Thanks!!!!




Quote:
Originally Posted by RocketSurgeon View Post
That sounds like quite a mess to fix. Missing even a single part would result in a non-functioning transmission. Now as far as identifying the parts, I will try my best to get you a copy of the zf service manual for that transmission, it is hugely helpful. I'll toss it up on a server and pm a download link if you would like. Now if you are very thorough you may be able to acquire all of the missing parts, but your best option at this point would probably be to buy the cheapest used 5hp24 available and apply your rebuild kit to that, or scavenging the needed parts. It is much easier to methodically rebuild one clutch at a time and lay the parts out in order as you replace them. But since a bunch of things are missing that makes it difficult. I've heard of some salvage places being over stocked with 5hp24s and selling them for around $500. That may be cheaper than hunting down each component individually since planetaries, steels, and who knows what else has gone missing.
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Old 02-06-2014, 02:55 PM   #15
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You are missing a lot of parts there. A couple of bearings, the whole clutch D-E assemby, the planets.........
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Old 02-06-2014, 04:38 PM   #16
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I hear from the master now!!!.....hehe

Thanks for jumping in tozo....

Well I excluded a couple of parts, but here it goes.....

Also cylinder F is inside the tranny so its not pictured. (third picture)

Also, I have included a couple more pixs of what I have... (see pictures)

And finally I purchased this exactly as you see it in the pictures (Seller had 2 listings alike) http:// www. ebay. com/itm/231148992177?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Apparently, that is what I was missing according to the parts catalog.

And finally, I bought this set (Last picture).... It comes with steels as well. I am 100% sure the SOB took with him about 4/5/6 steels, (you can see in the pictures the clutches alone), by the picture in this kit, are the ones I am missing in the kit I bought?

Thanks for the input, you guys are lifesavers.....

Any other noticeable parts I could be missing??

Quote:
Originally Posted by tozoM8 View Post
You are missing a lot of parts there. A couple of bearings, the whole clutch D-E assemby, the planets.........
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File Type: jpg A8 Set.jpg (42.3 KB, 13 views)
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Old 02-06-2014, 04:38 PM
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