Swapping engines

[elgyqc]

Originally Posted by LoneWolfGal

Grant, I understand you installed one of these after removing its seals, correct?

Yes. One only removes the outer (rear) seal. This resolves one of the problems with the original bearing... the seal leaking enough to wash the grease out of the bearing but not enough to allow oil back in. Fuller explanations are available elsewhere.

[LoneWolfGal]

Originally Posted by elgyqc

Yes. One only removes the outer (rear) seal. This resolves one of the problems with the original bearing... the seal leaking enough to wash the grease out of the bearing but not enough to allow oil back in. Fuller explanations are available elsewhere.

So it's the outer part of the bearing that's exposed to oil and not the inner part? That's counterintuitive to me, but I have yet to remove the bearing from the new engine.

[Homeoboxter]

Originally Posted by LoneWolfGal

So it's the outer part of the bearing that's exposed to oil and not the inner part? That's counterintuitive to me, but I have yet to remove the bearing from the new engine.

In fact, both sides are exposed, but the inner meets used/trapped oil within the shaft, while the outer side gets relatively fresh oil from the sump. In that sense it's better to remove the outer seal. On the other hand, if you remove both seals (obviously this can only be done if you extract the bearing and install a new one) the oil can go freely through the bearing and won't get trapped in there.