Slave Cylinder/Transmission DETAIL photos - BMW Luxury Touring Community
 
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post #1 of 14 Old Dec 3rd, 2006, 7:40 pm Thread Starter
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Slave Cylinder/Transmission DETAIL photos

This is part 2: see "Slave Cylinder/Transmission removal photos" for the overview.

These are photos detailing the transmission housing and illustrates what to look for when you go to drill the weep hole in the transmission case.
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Regards,
John
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post #2 of 14 Old Dec 4th, 2006, 10:36 am
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John I assume the rear main oring will be changed with the trans input shaft seal. Your rear main seal looked like it was still doing the job. Was that just clutch plate dust without motor oil. Here is a pic of my rear main seal leak from last year.Good Job
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post #3 of 14 Old Dec 4th, 2006, 11:30 am
 
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Quote:
Originally Posted by murray
John I assume the rear main oring will be changed with the trans input shaft seal. Your rear main seal looked like it was still doing the job. Was that just clutch plate dust without motor oil. Here is a pic of my rear main seal leak from last year.Good Job
Pete, do you have a picture of the main seal install? I'm still trying to place where the darn thing is exactly.
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post #4 of 14 Old Dec 4th, 2006, 12:06 pm
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Tim it is behind the clutch housing in the previous pictures.I do not have a pic of that.

Pete Murray
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post #5 of 14 Old Dec 4th, 2006, 3:07 pm
 
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Tim it is behind the clutch housing in the previous pictures.I do not have a pic of that.
Pete,
That would be the rear of the engine where it meets the clutch housing in the main output area? Does the LT Service Manual show a picture of it?
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post #6 of 14 Old Dec 4th, 2006, 3:41 pm
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Weep Hole

Quote:
Originally Posted by jgburns
This is part 2: see "Slave Cylinder/Transmission removal photos" for the overview.

These are photos detailing the transmission housing and illustrates what to look for when you go to drill the weep hole in the transmission case.
John,

How snug of fit is the slave cylinder into the transmission housing and how far does the slave cylinder go into the transmission housing? My transmission housing has the weep hole drilled but looking into the hole you see the slave cylinder casting. It does not look like the hole could have been drilled much closer to the transmission case. If it would start leaking would the fluid have room to seep around the bottom of the slave cylinder and out the weep hole?

Jerry Mathison
Woodbine, Iowa
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2005 Ocean Blue (Sold)
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post #7 of 14 Old Dec 4th, 2006, 4:13 pm
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Quote:
Originally Posted by Jerrym
John,

How snug of fit is the slave cylinder into the transmission housing and how far does the slave cylinder go into the transmission housing? My transmission housing has the weep hole drilled but looking into the hole you see the slave cylinder casting. It does not look like the hole could have been drilled much closer to the transmission case. If it would start leaking would the fluid have room to seep around the bottom of the slave cylinder and out the weep hole?
Jerry if you have a hole drilled you will be good.If you look at my slave cylinder pulled a year ago fluid is all around the cylinder. The photo was shot immediately after removal.The cylinder protrudes far and the fit is a very light press fit.
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post #8 of 14 Old Dec 4th, 2006, 5:21 pm
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weep hole

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Originally Posted by murray
Jerry if you have a hole drilled you will be good.If you look at my slave cylinder pulled a year ago fluid is all around the cylinder. The photo was shot immediately after removal.The cylinder protrudes far and the fit is a very light press fit.
Thanks for the reply. My dealer did mind when he replace the seal on the out put transmission shaft. It was the first one he had ever done so I was in hopes it was in the right location. I keep a watch on the weep hole in hopes if the slave cylinder would start to leak it would show up before getting to the clutch. Thanks again.

Jerry Mathison
Woodbine, Iowa
2008 Gold Wing
2005 Ocean Blue (Sold)
BMWMOA #25294

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post #9 of 14 Old Dec 4th, 2006, 11:49 pm Thread Starter
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Quote:
Originally Posted by Jerrym
John,

How snug of fit is the slave cylinder into the transmission housing and how far does the slave cylinder go into the transmission housing? My transmission housing has the weep hole drilled but looking into the hole you see the slave cylinder casting. It does not look like the hole could have been drilled much closer to the transmission case. If it would start leaking would the fluid have room to seep around the bottom of the slave cylinder and out the weep hole?
It was pulled out by hand -- not too tight. The slave cylinder measured from the flange to the end of its' housing is 1-8/32" (note precision just for you ), the depth within the machined tranmission housing is approximately 1-17/64." ...there's no empty space.

I don't have the fortunate experience of having a weep hole to know whether it works. Maybe I can get back to you on that in three to five years .

Regards,
John
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post #10 of 14 Old Dec 4th, 2006, 11:53 pm Thread Starter
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Quote:
Originally Posted by murray
John I assume the rear main oring will be changed with the trans input shaft seal. Your rear main seal looked like it was still doing the job. Was that just clutch plate dust without motor oil. Here is a pic of my rear main seal leak from last year.Good Job
There was no transmission or motor oil in the clutch housing, only trace amounts of DOT 4 brake fluid. ... just enough to cost me hundreds of dollars

Regards,
John
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post #11 of 14 Old Dec 5th, 2006, 2:52 am
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Exact weep hole location

Hi John,

thanks for the informative report. What I am still missing is the exact location of where the weep hole should be drilled. Would you (or somebody else) happen to have a picture of where to drill? I would hate drill a hole in a wrong place...

Regards

Ari "the Farkle-Freak-Finn" Ignatius

Hyvinkää, Finland
2004 ('05) LT, Dark Graphite, "Sunset Cruiser II"

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post #12 of 14 Old Dec 5th, 2006, 2:59 am
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Never mind, I found it!

Quote:
Originally Posted by pozo_izquierdo
Hi John,

thanks for the informative report. What I am still missing is the exact location of where the weep hole should be drilled. Would you (or somebody else) happen to have a picture of where to drill? I would hate drill a hole in a wrong place...

Regards
I found the instructions made by Jack Homesley. That should tell the whole story...

Regards

Ari "the Farkle-Freak-Finn" Ignatius

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post #13 of 14 Old Dec 5th, 2006, 6:33 am
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Exclamation

Quote:
Originally Posted by jgburns
There was no transmission or motor oil in the clutch housing, only trace amounts of DOT 4 brake fluid. ... just enough to cost me hundreds of dollars
That is good news ,I would encourage you to change the rear main oring only and the plastic spacer. Dont forget to balance the clutch as per manual upon assembly.

Pete Murray
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2002 LT 171 K Gone
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post #14 of 14 Old Dec 5th, 2006, 9:14 am
 
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Originally Posted by murray
Jerry if you have a hole drilled you will be good.If you look at my slave cylinder pulled a year ago fluid is all around the cylinder. The photo was shot immediately after removal.The cylinder protrudes far and the fit is a very light press fit.
I had the same concern before I drilled the hole. "If" I have to replace the slave in the future, I plan on taking my Dremel tool and grinding a slight channel from the front slave barrel edge and down the underside back to where the weep hole was drilled. This way, if fluid does leak, it will show up rather quickly.
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