Great job Winfred! Thanks...
Quote:
Originally Posted by winfred
i took a few pics of core tranny parts to give a strong idea on how to repare this common defect, this tranny is in m20 bimmers, m30 bimmers after about 84, volvo 740 without overdrive non turbo, peugot and jag don't know which. this is how to repare the main problem with the tranny, when the car will only move in reverse and in extream cases not move at all.
Though I will never attempt any tranny repair in my life (okay, MAYBE a clutch if I ever get a manual again), that doesn't stop from appreciating your post! Thanks for your efforts.
Oh, and enjoy that beer. ;-)
Peter
Bravo Winfred...one of the most important posts I have
ever read on the board. Hats off! Excellent review of a common and expensive failure for ZF autobox owners like me. As to drilling the little relief hole...I am right with you. Best to not drill the hole. No less an expert than Kirt Koeller does not drill a relief hole in any of these transmissions he rebuilds either and he does a lot of them.
A question...if I were to run into this failure...do you now take on these repairs from forum members? Is so, what would be your price less shipping
for a standard rebuild of clutches and seals?
Many Thanks for your contribution Winfred...really good stuff.
George
90 735iL/149k...original ZF 4HP 22EH that still shifts like new..but for how
long?
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.
..too funny about the guy...
who did the neutral slams. See what you mean. Tranny work is tough...both in pulling the trans, repairing them and then seeing if they stay together after the fact....why Kirt Koeller bought a dyno for his shop so he could test everything he rebuilt...a lot of steps involved...best to check one's work if possible and a dyno helps.
Have you ever had the autobox apart on your 535i?
George
winfred, would you mind....
commenting on my driveshaft posting below? thanks.
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 crazy 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
Love your timing on posting this procedure
My '89 525iA (224,000 km) has been sitting motionless since early Dec 2003 with tranny problems. Can you comment on my symptoms matching your fix? I drove the car about 20 miles around town, then at the bottom of a gully with steep climbs either way out it stopped making headway. Having heard of this problem with the early E34's I coasted backwards up a driveway and turned around thinking that I could drive the remaining half-mile home in reverse. However, left it parked there because reverse was like driving with the hand brake on. Lots of resistance, whereas forward just didn't grab at all. I left it there for four days until I could borrow a 4wd truck on the weekend. When I went back for the car it drove fine again, at least the last half-mile back home. Reversing it up my driveway it again developed the heavy resistance after reversing about 30 feet.
It's the problem in reverse that has me worried that the standard fix, your beautifully documented procedure, isn't going to go deep enough to get me back on the road again.
Thanks for your feedback...
Bill K. in Sydney, Australia
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)
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 crazy 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
Muahahaha find a 4.4 and just do it
BTW that was for YOU DREW ;)
I think I'd patronize my Norwegian friends first . . .
$6k for an extra 130hp . . .
http://www.esstuning.com/img/mvc-220.jpg
Quote:
Originally Posted by Scott H
BTW that was for YOU DREW ;)
Pictures/instructions now archived (m)
Two ZF 4HP22 repairs
(pictures now at bimmer.info so Winfred can reclaim some of his webspace.)
ill bump it again cos this bit is "winfred"
Quote:
and a turd hauls ass and is hard to stop with your hand
George if you need to look the process up sometime and you can't find Winfred's pics
Then you can look at the procedure in the TIS under Service/automatic transmission/240387000/ service action... Its virtually the same procedure there.
Quote:
Originally Posted by George M
darn...trans link pics wouldn't load. Winfred must have pulled them off this site. Will try to find out where the pics are let the board know.
George