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Car Forum / Saab Cars / December 2005

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Replacing DI Cassette

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Valjean - 12 Dec 2005 21:33 GMT
A coil (I assume that's what it is; it's a black thing shaped like some gross cow's udder) snapped off my red DI cassette. I have another one; the coils appear to be part of a black underpiece that is just screwed into the red top; and that cassette is defective. Is the transfer going to work
Malt_Hound - 12 Dec 2005 22:19 GMT
> A coil (I assume that's what it is; it's a black thing shaped like some
> gross cow's udder) snapped off my red DI cassette. I have another one;
> the coils appear to be part of a black underpiece that is just
> screwed into the red top; and that cassette is defective. Is the
> transfer going to work.

Probably not.  I have not yet heard of anyone successfully repairing a
DI cassette.  The SOP is to replace the whole kahuna.  Some people even
carry a spare as when it goes, generally you don't...

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-Fred W

Dexter J - 13 Dec 2005 01:30 GMT
>> A coil (I assume that's what it is; it's a black thing shaped like some
>> gross cow's udder) snapped off my red DI cassette. I have another one;
[quoted text clipped - 5 lines]
> DI cassette.  The SOP is to replace the whole kahuna.  Some people even
> carry a spare as when it goes, generally you don't...

Merry Christmas Fred.

There are lose rumours that a DI can be repaired by replacing a coil if all that is wrong is the coil. I'm sure I've read a page on it somewhere - but exactly where I cannot remember.

It may be possible to replace a given coil with a donor coil and carry on - assuming that it is not a heat related fracture. In which case, it is most likely that whatever you put in there will blow again shortly.

I actually replaced my older, but known working, DI with a fresh one a while ago so as to have the spare. I haven't however worked out a good place to stow it in the hatch so as to keep it from being knocked about.

Any ideas along those lines?

Cheers.

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Malt_Hound - 15 Dec 2005 00:56 GMT
> Merry Christmas Fred.

...and to you my friend.  Happy New Year, as well.

> There are lose rumours that a DI can be repaired by replacing a coil if
> all that is wrong is the coil. I'm sure I've read a page on it somewhere
[quoted text clipped - 9 lines]
>
> Any ideas along those lines?

No, sorry.  I have always run loose and free on those lines.  I have had
 4 cars with these dreaded DI cassettes in them and (knock on wood)
have yet to experience my first DI failure.  But I also have been fairly
religious about spark plug replacements (using only the sacred NGKs) and
on the one 9000CSET that seemed to "use" plugs the fastest was at a
point where they were getting changed at 10-15k mile intervals (low
miles per annum) when they started to throw TCS errors.

Signature

-Fred W

Fatman - 13 Dec 2005 01:39 GMT
If the fault is isolated to a single coil, then yes, you can replace the coil with a known good coil.

It's not a big job to try..

BL

 A coil (I assume that's what it is; it's a black thing shaped like some gross cow's udder) snapped off my red DI cassette. I have another one; the coils appear to be part of a black underpiece that is just screwed into the red top; and that cassette is defective. Is the transfer going to work
yaofeng - 13 Dec 2005 14:36 GMT
> If the fault is isolated to a single coil, then yes, you can replace the coil with a known good coil.
>
[quoted text clipped - 3 lines]
>
>   A coil (I assume that's what it is; it's a black thing shaped like some gross cow's udder) snapped off my red DI cassette. I have another one; the coils appear to be part of a black underpiece that is just screwed into the red top; and that cassette is defective. Is the transfer going to work.

Could you tell us how?
Frosty66 - 15 Dec 2005 22:18 GMT
Replacing the black plastic cover and the individual coils is very easy. The cover comes off after you remove the 6 screws. the coils stay attached to the DI as they are plugged in to sockets " sort of like relays".  An easy pull straight up and they pop out. I will send you a few pics.
 A coil (I assume that's what it is; it's a black thing shaped like some gross cow's udder) snapped off my red DI cassette. I have another one; the coils appear to be part of a black underpiece that is just screwed into the red top; and that cassette is defective. Is the transfer going to work
Walt Kienzle - 17 Dec 2005 05:46 GMT
I thought this only worked with the "old" DI cassette, where the wiring harness was attached to the unit.  My understanding was that the "new" DI cassette (with a connector plug on the end for the separate wiring harness) did not have replaceable coils.

Walt Kienzle
1991 9000T
 Replacing the black plastic cover and the individual coils is very easy. The cover comes off after you remove the 6 screws. the coils stay attached to the DI as they are plugged in to sockets " sort of like relays".  An easy pull straight up and they pop out. I will send you a few pics.
   "Valjean" <jvaljean@nospamcharter.net> wrote in message news:yAmnf.13670$tQ7.6759@fe04.lga...
   A coil (I assume that's what it is; it's a black thing shaped like some gross cow's udder) snapped off my red DI cassette. I have another one; the coils appear to be part of a black underpiece that is just screwed into the red top; and that cassette is defective. Is the transfer going to work
Malt_Hound - 17 Dec 2005 13:30 GMT
> I thought this only worked with the "old" DI cassette, where the wiring
> harness was attached to the unit.  My understanding was that the "new"
[quoted text clipped - 18 lines]
>         underpiece that is just screwed into the red top; and that
>         cassette is defective. Is the transfer going to work.

I believe that you are right, Walt.  Also, many (most?) of the older
ones with the attached wiring were replaced with the newer
non-repairable type at first failure.  I beleive there is even a service
bulletin about the procedure due to the new cabling needed.

Signature

-Fred W

 
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