LN Ceramic bearing
Does anyone use the LN ceramic double row IMS bearing anymore? Is that sort of old school technology that people have moved on from?. I notice on Facebook, many people in the IMS bearing group, especially in the last few months are using the EPS roller bearing.
I never see posted anywhere somebody putting in the ceramic bearing from LN. Sounds like when it comes to LN, it's either the solution or nothing at this point in time. I would like to replace mine with the stock Porsche bearing but cannot find it here in the United States. Can get it shipped from Germany, but still have to have the right tool to install it because of the internal spring design and getting it into the shaft. |
Sourcing for the bearing is mentioned in this thread. Also discussion on installing new bearing. I have not completed the installation myself because I was waiting for a flange and am now away on vacation... will get back to it in April.
http://986forum.com/forums/performance-technical-chat/81929-my-ims-bearing-replacement-thread.html |
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I had the LN Single Row Pro, the ceramic dual row replacement for the OEM single row used in my 2003 S. It was installed in my car, that I bought new, around 42,000 miles and failed around 77,500 miles. I did the frequent oil changes, filter inspections, magnetic drain plug and it still failed. My rebuilt engine has the LN IMS Solution, which, in retrospect, I should have gotten the first time around. LN has a sister company, RND, and they have a roller bearing for a price-point replacement, but it is a periodic replacement item. I recommend installing the IMS Solution if you're going to do something, and be done for good.
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Especially when there are several better choices available |
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The stock bearing has held up fine for 21 years and 85,000 miles. I just removed it and that was probably premature considering the condition it was in. I would not be scared to put another one in there with the dust seals removed and let it run. |
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I plan to reuse the old spring clip. For the installation I was thinking of using a metal collar (that I have already made from a piece of exhaust pipe) held in place by a tie wrap that will hold the spring down and the collar will slide back as the bearing is inserted. I am also pondering using a "pusher" rather than a hammer to install the bearing. I think a frame could be made that attaches to the block and then permits a threaded rod to slowly push the bearing into place. Doing this would allow one person to do it, pausing the operation to work the clip into place. I am on vacation so have not worked out the details of how this would work. I made a tool to remove the wheel hubs with a puller rather than a slide hammer when I changed all my wheel bearings. A puller or pusher is much less agressive than a hammer. |
I was able to tap the bearing myself while pressing the circlip into the groove but the IMS was out of the engine. I kept the bearing in the freezer overnight and heated up the bore with a heat gun so it required little force.
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