1982 300CD Tranny B2 Piston replacement

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caviterruptor - 27 Feb 2006 00:57 GMT

I've begun replacement of the B2 tranny band piston
on my '82 300CD per the link

http://articles.mbz.org/transmission/b2/repair/

Has anyone out there done this? Can anyone expound on Step 6? I can
push in the piston cover, & I believe this proverbial circlip has about

3/4" between ends, but what to do with them? Expand/compression with
limited mobility/space seems unlikely here & could even prove difficult

on a bench.

Am I missing something, or is this article describing a pipe dream?

C

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caviterruptor - 28 Feb 2006 02:40 GMT

Does anyone know if the flange side of the plastic sleeve faces in?

Does the conical spring go outside the B2 piston with the smaller end
butting against the cover?

I want to attach a pic of my presumed orientation, but don't see how.

Thx, y'all

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Richard Sexton - 28 Feb 2006 22:12 GMT

>Does anyone know if the flange side of the plastic sleeve faces in?

No way. Won't fit That flange is what retains the sleeve.

>Does the conical spring go outside the B2 piston with the smaller end
>butting against the cover?

To be honest, not sure, but I think:
no, other way, that centers the spring against the cover.

it *should* be obvious; look for a mating groove.

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Richard Sexton - 28 Feb 2006 22:24 GMT

>>Does anyone know if the flange side of the plastic sleeve faces in?
>
[quoted text clipped - 7 lines]
>
>it *should* be obvious; look for a mating groove.

Why is the spring out? Isn't it an internal part of the B2
assembly? That's what I'm guessing from my pics. The
big spring might be out but the small spring faces big side
out into a little saucer thing that's part of the cover.

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caviterruptor - 01 Mar 2006 08:39 GMT

Circlip removal revelation: there's a slot in the housing @ about 5
o'clock. A long, narrow, regular screwdriver inserted over the exhaust
pipe into this slot allows circlip removal.

I installed cone spring w/ small end out, as mating groove in cover
suggested.

I installed sleeve w/ flange facing in, as it seemed a good fit against
the seal in the housing. Tho, in hind sight, it then acts as a spacer,
not a sleeve. Tapered side-in wouldn't fit in hole for piston shaft
any way.

Now I'm thinking that's b/c the metal sleeve was still in there, tho
what comprised the inner diameter of the piston shaft hole didn't
appear to be a removable sleeve.

Whether or not I put the new sleeve in backwards, it now drives fine.
But for how long?

Guess I should go back in.

Leck mich am Arsch!

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Richard Sexton - 01 Mar 2006 13:36 GMT

>Circlip removal revelation: there's a slot in the housing @ about 5
>o'clock. A long, narrow, regular screwdriver inserted over the exhaust
>pipe into this slot allows circlip removal.

Great, I added that to the article.

>I installed cone spring w/ small end out, as mating groove in cover
>suggested.

Studying my pictures agani I noticed that all 5 of them had the sprig
facingthe same way in each pic. While it wasn't assembled I remember
putting things for the photos the way they were in real life, so that sounds
right.

>Now I'm thinking that's b/c the metal sleeve was still in there, tho
>what comprised the inner diameter of the piston shaft hole didn't
>appear to be a removable sleeve.

Do you mean you didn't remove the old metal sleeve?

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caviterruptor - 04 Mar 2006 17:36 GMT

Not sure. I thought it was with the handful of pieces that dropped
out, but if what I described above sounds like it, & the new plastic
sleeve's non-flanged side is to face the center of the car & fit into
the piston shaft hole, then I guess I didn't remove the old, metal
sleeve.

Looks like I'm going back in.

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Richard Sexton - 04 Mar 2006 19:08 GMT

>Not sure. I thought it was with the handful of pieces that dropped
>out, but if what I described above sounds like it, & the new plastic
[quoted text clipped - 3 lines]
>
>Looks like I'm going back in.

Oopsie.

I dorve arond wth my B2 busted for about 6 months and it was right
chewed up. But intact. The bits that fell out were part of the B2
asssembly.

Here's a pic of my B2 sleeve and the new plastic one.

http://images.mbz.org/by_chassis/Sedan/126/parts/trans/b2/b2sleves.jpg

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caviterruptor - 07 Mar 2006 22:10 GMT

How do you attach pictures to these replies?

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Geoff Miller - 08 Mar 2006 14:16 GMT

caviterruptor <mikeslane@sbcglobal.net> asks:

> How do you attach pictures to these replies?

You don't. You post them to an appropriate binaries newsgroup,
and post a pointer to them here.

Geoff

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Hernando Correa - 08 Mar 2006 17:06 GMT

> caviterruptor <mikeslane@sbcglobal.net> asks:
>
[quoted text clipped - 4 lines]
>
> Geoff

I'm curious. Does this NG allow posting pictures/images/drawings in
MIME format? They would be read as "text" by everyone but it would be up
to the reader to convert them to JPEG format, if so desired.

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Geoff Miller - 08 Mar 2006 17:39 GMT

> I'm curious. Does this NG allow posting pictures/images/drawings
> in MIME format? They would be read as "text" by everyone but it
> would be up to the reader to convert them to JPEG format, if so
> desired.

It's "allowed" in the sense that no one can stop you. But posting
image files that appear as screens and screens and screens of text
to anyone who doesn't have the right kind of newsreader is generally
frowned upon in non-binaries newsgroups, whatever their format.

Geoff

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"It looks like you're having a Jules Verne day. Even with 20,000
possible responses, you're still out of your league and out of
your depth." -- Tim Mefford

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Hernando Correa - 08 Mar 2006 20:00 GMT

>>I'm curious. Does this NG allow posting pictures/images/drawings
>>in MIME format? They would be read as "text" by everyone but it
[quoted text clipped - 7 lines]
>
> Geoff

Thanks.

Hernando

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