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Clutch change DIY with pics

105K views 110 replies 52 participants last post by  jskylarwilson  
Question about sealant on rear main seal metal piece

VantaaM5 (or anyone with insight) -

I have attached an image below that you took, but added a square around the area I'm talking about.

I replaced the rear main seal earlier today with the entire metal housing, so I don't have to press fit it in.
My question is if I need to put sealant below the housing. The RMS came with housing and the gasket that goes behind the RMS housing, but there is no gasket below the RMS housing, and there was none when I took it off. My question is if a gasket or some form of sealant is required there?
I notice something blue-ish poking through on your pic.

Also the other pic is of my clutch with 75,000 miles of my kind of driving. I think its going in for another round of 75,000 miles of driving (120,000km) until I have to replace the next RMS.
 

Attachments

The transmission and flywheel is installed. Used the clutch alignment tool, and even used a special tool to tension the springs on the pressure plate since the clutch/plate is self adjusting.

When the car was turned on with the transmission in place, but with no drive-shaft or exhaust the sound was amazing....but the output flange (no. 1 on illustration / part no. 23211222770) with the drive-shaft removed, kept turning slowly even in neutral position.

If I pushed the clutch down it stopped rotating, but with clutch released in neutral it started rotating again.
The rotation was rather weak since it was stopped with a plank just by applying some pressure on the output flange (no. 1 on illustration / part no. 23211222770). There was literally zero variation on the engine sound or RPM's since it's very audible with exhaust removed.

My thought is that possibly the viscosity of the oil is causing it to rotate slight and is completely unnoticeable when driveshaft is on car is on all 4 wheels. But I want someone else opinion.
So the question is: Is this normal?

Image
 
I'm sorry Raikku i don't understand what you mean. Is the new plate supplied with something to tension the springs properly?


@ 3:50 and on explains the process

<iframe title="YouTube video player" src="http://www.youtube.com/embed/qIf5nbjFFJI" allowfullscreen="" frameborder="0" height="390" width="640"></iframe>
 
Thanks. Based upon Terabass' question earlier, I was under the impression that he was either unaware that the gasket was their or that an additional sealant is needed to be put in place under the rear main seal.

Prier to this thread and your earlier post, I would have been under the impression that nothing additional was necessary on top of the existing oil pan gasket after looking at other threads, RealOEM & BMWfans websites as well as BMW TIS - 11 14 151 Replacing crankshaft radial seal (M62/S62)
Image
After seeing Vaantam5's pics, I was unsure if additional sealant was an extra measure or 100% required.

Nothing is necessary on top of the existing oil pan gasket,-- I didn't add anything and it holds fine. The oil pan gasket does the job. Vaantam5 just added extra sealant for good measure.
 
Hey guys. Just had a question on the RMS. I replaced it about 10k miles ago but only replaced the seal and not the cover gasket. I will be taking my clutch apart this weekend to check a problem I'm having with it slipping, so my question is should I replace the cover gasket now? Thanks in advance for any help.
If your clutch is slipping after installing the original clutch back in after doing RMS it might be because you did not tighten the pressure plate before installing it back on.

The pressure plate is self adjusting and needs to be tightened to max before installing. New pressure plates come pre-tightened.
Here's a video I got on RMS with tightening pressure plate- check at 4:00min
DIY: BMW M5 E39 - Clutch Removal & Rear Main Seal Repair - YouTube

My clutch slipped only for a short single moment in 3rd gear up a steep hill right at start of first test drive. Appears that after oil residue, etc. was burned there's zero slip.