Question about IMS oil leaks

[JFP in PA]

Originally Posted by truegearhead

I replaced my IMS with an upgraded unit a few years ago and just pulled everything back apart to replace a new IMS oil leak. I can see where the IMS oil seal failed. My question is where is this oil coming from? Is it passing through the bearing? It's a huge leak. I'm going to replace the bearing again due some metal shavings I found around the housing. The bearing still "feels ok" but it's obviously time for it to go. With as much oil is there was in the housing it really seems like a unsealed bearing would be the way to go.

Bonus question, I searched and searched yesterday but even with all the RMS depth talk out there I can't find a picture of one that is confirmed to be at the right depth. I don't have the tool. I seated mine 2mm past the housing face.

Whose retrofit kit is leaking?

The correct PTFE install depth is 13 MM from the flywheel face of the crank hub.

[truegearhead]

Originally Posted by JFP in PA

Whose retrofit kit is leaking?

The correct PTFE install depth is 13 MM from the flywheel face of the crank hub.

I don't think the bearing is leaking, I think it's just a seal leak, the kit probably performing well so I'd rather not wrongly incriminate someone.

[truegearhead]

UPDATE: Now I'm really in a pickle, the upgraded unit which failed has the larger center shaft which the IMS removal tool can't attach to. It's also very clean now after cleaning off the oil that oil is running through the bearing and pooling so both seals have failed. To add insult to injury the o-rings that came with this kit are not correctly sized and too loose. I called the company I bought this from and the answer they told me is "they haven't though about the larger shaft not matching up to the tool". I'll post up pictures tonight, not a happy camper. So I guess my option is to make a tool that works.

As promised here's a photo. I cleaned this area the day before (car doesn't have oil in it) and oil has already leaked through the bearing. I'm assuming it was full of oil, the seal can also be easy spun by hand. I'm really wondering if these would be better off with no seal. Again this is a 4 year old improved bearing.