GyroSE wrote: cafe latte wrote:
blakep wrote:As I said in the other thread, I've run motor oil in both the original and inverted Michell bearings, as per Michell's instructions, for 35 years, 21 with the original bearing and the past twelve with the new inverted bearing.
No problems with either. Is my bearing damaged? If it is, I sure can't hear it. Sounds good enough to me.
But I'm supposed to listen to two guys (as opposed to the manufacturer), both of which seem to have no experience with my table, and whose advice is totally contradictory to the manufacturers' instructions as well as 35 years of positive experience from following those instructions.
OK. Seems very rational to me.
I also can't recall once in the the 20 years that I've been reading audio forums ever reading about anyone having to replace a Michell bearing.
All fine but the oil advice the manufacture is giving does not make sense for the reasons I stated, not at all. Google oils yourself it is quite interesting read about the differences between motor oils (modern ones and older ones) and machine oils too. Then check out compressor oils with safe anti wear additives available synthetic and any weight you want. Then you may understand why I dont get it about mobile 1 in this application.
The thing is that we are several owners of Michell decks that have stated that none of us have any of the problems that you describe. The bearings in both of my Michell turntables looks minty and shiny, blakep who probably has had his Michell deck for the longest time in here also stated that he has had no problems with the bearings he has used during the years.
Yes but it does not mean you have optimum oil.. I have a Dozer that ran for years with injector pipes crossed over and it did loads of work like this, it is fine and all seems well, or is it??
YOU where YOU live it is fine with engine oil in a turntable bearing, but would it be the same story in the wet season where I live?
Also how to you measure wear, how long does it take suspended particles due to an oil additive being wrong to wear a bearing to audibly increase rumble?
It could be years and years, depending on turntable use it could be decades to see issues.
Point is engine oil in the application is not correct and this is known fact have a google. The oil you guys are using may be ok, but a correct weight machine oil WILL be better in so many ways, less wear and less corrosion. Still waiting for Mitchell to email me, me thinks they are maybe doing their own research after my email... Or they dont know what to say....