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Loose Camshaft Seal 850 1997

posted by  PBH on  Tue Mar 27 06:02 CST 2007
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last visit: Mon Jan 2 20:34 CST 2012
[RELATED]

Around New Years I replaced my head gasket. Car ran great for 4,000 km, then I developed a massive oil leak.

I have just figured out that the seal behind the camshaft position sensor basically 'popped' out. It fell out of the bore as soon as I touched it. It is possible that it was never properly seated. When I did the head I just set the seals in place, assembled the head and never pushed the seals all the way in. In hindsight I now realize I should have pushed the exposed seals home.

Since the seal was like new I greased the OD and put it back in. I was suprised by how easily the seal went in. No tools, no great force, just with my fingers. I tried to rotate it with a pick, and it did not rotate, but it doesn't seem right to me.

Should it be tighter than this? Will it blow out again from oil pressure? Should I remove it and add some adhesive?

It is not a huge problem, if it starts to leak I know where the problem is, but I'd like to do it once and be done with it.








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    Loose Camshaft Seal 850 1997

    posted by  someone claiming to be ra on  Thu Mar 29 01:15 CST 2007 [RELATED]

    Hi - you greased the OD - the outer diameter of the seal? Get your drip pan ready.

    Sorry, but the OD of the seal needs to grip the head to stay put.

    Some folks, after cleaning the head surface with brake cleaner, apply RTV sealant to the OD of the new seal before installing.

    You probably wouldn't want to do this, but I just glued in a cam seal with JBWeld on an old 240 of ours that wouldn't hold the seal (flame trap is clean and crankcase pressure is negative!!). It'll be good for 50k miles, then I'll dremel it out and install another.

    It's no fun to drive a vehicle when you are afraid a seal could go at any moment. If I were you, I'd plan a repair asap. May as well put on a new timing belt whilst you are in there. Good luck.








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      Loose Camshaft Seal 850 1997

      posted by  someone claiming to be ra on  Thu Mar 29 01:17 CST 2007 [RELATED]

      Oops, misread your post. CPS not camshaft seal. Forget the timing belt. You probably put on a new one with your head gasket anyway. Good luck.








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        Loose Camshaft Seal 850 1997

        posted by  PBH on  Sat Mar 31 08:58 CST 2007
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Mon Jan 2 20:34 CST 2012
        [RELATED]

        Yes I did replace the timing belt. I have used grease on lots of shaft seals and never had a problem with them coming out. The problem isn't the grease, it is the lack of interference in the fit. the seal should be tight to push in.

        If it was the other end I would have glued it. The CPS end is easy to get at, so if it leaks again I'll glue it.







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