Darrah
Well-Known Member
Funny enough, I just added a bearing to mine. Mine is a '71 floor-shifted car and I installed the box without a lower bearing (or seal for that matter). About two weeks later, I installed a lower unit bearing, not because of anything steering related, but to keep the hot air from blowing up the column.With some boxes and/or installations clearly louder than others, I am beginning to think the column configuration could be contributing to the volume of the noise issue. The ‘71-72 floor shifted columns did not include a lower shaft support bearing, just a seal, only supported by the upper bearing. The ’73 rag-joint conversion I did required adding a lower bearing, curious now if the lower bearing alone could have resolved or reduced my noise issue to a tolerable level without the need for the rag joint.
BTW, both boxes I’m dealing with were purchased in the last 8 months or so.
The sound isn't appreciably different before or after bearing.
In my experience, one pump was SIGNIFICANTLY louder than another. I cannot explain it, but it was 100% the case. Original pump, quiet. Second pump, very loud. Original pump reinstalled, quiet again (it hisses, but not loud enough to be a big issue). As I mentioned earlier, I did loosen the pressure line into the box and it may have rotated slightly, but that's it. Can't really explain it.