engine and drivetrain replace valve stem seal

[02dag]

I am trying to refurbish the valves on a head for my turbo engine. The head is ok, and while at it I decided to change the valve stem seals. Ordered new seals from WN but it turned out that this head have had the seals and whatever you call it replaced with the late style type.

 

I am wondering what the part number is for that particular type of seal, and how the ##@# do I get them off?

 

 

[Buckeye]

Don't know part number for what you looking for, but reading section 11 in the following link should help you with removal and specifications.

Good Luck!

[02dag]

It actually doesn't say anything about the seals, and this service manual is for the 2002.  the late style seals are from e30 318i. Found the bmw part number from another thread and it is 11349059169.

 

I guess one just have to pull the seals off?

 

 

[02dag]

Found this article on head and it shouldn't be more difficult than pulling them off. Tried this before but nothing happened. Have to try one more time.

 

http://www.e30zone.net/e30zonewiki/index.php/Stripping_and_Rebuilding_an_M20_Cylinder_Head

[TobyB]

Grab with pliers. 

Pull.  Wiggle.  Pull.

Be careful not to damage top of valve guide.

 

It takes a real pull to get them off.

 

Replacement should be the 1985 E30 stem seal- realoem can get you the number.

Also, it shows up as 'new style' in the aftermarket parts chain.

I usually have to buy them separate from the kit, and they're not very expensive.

Get a couple extra, because getting them back on is harder than getting them off.

 

t

[02dag]

Thanks for the heads up on getting them back on. I have tried once more now, but the seals are stuck. I am afraid to damage the top of the valve guide,  so I haven't used full force.

 

Thought of maybe using a sort of slide hammer, if you know what I mean?

['76mintgrün'02]

I know what you mean.

I modified one by cutting the threaded end off the shaft and welding a new one on, which fits into the adjuster on a pair of vise grips.  I believe it was a 5/16" bolt.  Now I can grab stuff with the vise grips and hammer it off.  This would probably work well for your needs, if you put something inside the seals, so they do not get deformed while squeezing them.  I looked for the photo of my tool, but could not find it.  Let me know if you want to see it and I will snap another photo.

Tom