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Thread: two ZF 4HP22 repairs

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  1. #1
    Join Date
    Dec 2003
    Location
    Atlanta, GA
    Posts
    236

    Default Thank you Winfred for being somewhat out of your mind.

    In a good way of course. Perhaps that's what it takes to become a motor master?

    Some of us can only dream.
    Last edited by G Feller; 02-12-2004 at 10:14 AM. Reason: mistake

  2. #2
    Join Date
    Dec 2003
    Location
    in a sexy house
    Posts
    272

    Default Incredible post Winfred--

    Great post - incredible information. I don't think I'll ever venture in there, but for anyone who is getting screwed by a tranny shop - here's the guide!

    Wrong tranny, but about 2 weeks ago, the tranny on my former 525iT went out. I've avoided talking to anyone bimmer related for a while, I had this though of buying the car back (sold it to my neice's fiancee) and sending it out to Brett Anderson. I really didn't need any of you merry band of misfits convincing me that it would be a great idea!!!





    --Micah

  3. #3
    Join Date
    Jan 2004
    Location
    NJ
    Posts
    240

    Default hmmm . . . too bad no one owes you a trip to OH :)

    I think a straight-up 5-speed swap might not even need a visit to OH. Maybe my local guy that works for $50-ish/hour could do it . . .

    Quote Originally Posted by MicahO
    Great post - incredible information. I don't think I'll ever venture in there, but for anyone who is getting screwed by a tranny shop - here's the guide!

    Wrong tranny, but about 2 weeks ago, the tranny on my former 525iT went out. I've avoided talking to anyone bimmer related for a while, I had this though of buying the car back (sold it to my neice's fiancee) and sending it out to Brett Anderson. I really didn't need any of you merry band of misfits convincing me that it would be a great idea!!!





    --Micah
    Drew Z
    Formerly 540iT/6, now . . . 3, 5, 7

  4. #4
    Join Date
    Jan 2004
    Location
    Bloomsbury, NJ
    Posts
    132

    Default Hey Winfred...my understanding was that this issue was 'fixed' (more)

    ...in the ZF's beginning in around mid/late-'88 in the ZF-HP422E (I believe was the model). The story I read indicated BMW (although never admitting this issue was worthy of a full "recall", of course) came up with a retrofit valve of some sort to allieviate the well-known blown clutch pack issue occuring when the tranny was revved for extended periods in "N" or "P". This valve was later incorporated into the '88 and later ZF-HP line of trannies.

    Is my info way off base? Are we talking about the same problem? (I haven't had coffee yet--pls be gentle with me.)

    Thanks for posting this info...always wanted to see the "inner-workings" of this issue...and having it well-narrated helps tremendously, too.

    Rgds,
    Tim G.
    '91 535iM
    ex-'91 535iA with ZF-HP422 (stolen, recovered & scrapped)

  5. #5
    Join Date
    Dec 2003
    Location
    in a sexy house
    Posts
    272

    Default

    pppplease stop tempting me.....


  6. #6
    Join Date
    Dec 2003
    Location
    in a sexy house
    Posts
    272

    Default

    I still have to work out where the replies get inserted - this was for Drew

  7. #7
    Join Date
    Dec 2003
    Posts
    868

    Default Muahahaha find a 4.4 and just do it

    BTW that was for YOU DREW

  8. #8
    Join Date
    Jan 2004
    Location
    NJ
    Posts
    240

    Default I think I'd patronize my Norwegian friends first . . .

    $6k for an extra 130hp . . .


    Quote Originally Posted by Scott H
    BTW that was for YOU DREW
    Drew Z
    Formerly 540iT/6, now . . . 3, 5, 7

  9. #9
    Join Date
    Jan 2004
    Location
    NJ
    Posts
    240

    Default Never!!

    You know you want to do it.

    Quote Originally Posted by MicahO
    pppplease stop tempting me.....

    Drew Z
    Formerly 540iT/6, now . . . 3, 5, 7

  10. #10
    Join Date
    Dec 2003
    Posts
    597

    Default Pictures/instructions now archived (m)

    Two ZF 4HP22 repairs

    (pictures now at bimmer.info so Winfred can reclaim some of his webspace.)

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