Originally Posted by
mlmack
The manual for my White Rotary 77 says to use "special motor lubricant or petroleum jelly" in the grease cups for motor lubrication.
Petroleum jelly working its way into the motor would seem to indicate a problem beyond the use of petroleum jelly.
Thanks, Mark for the info from your White manual. I had been wondering if the vaseline would become too runny and somehow get into the motor. I guess Singer's admonitions were based solely on money.
Now I am wondering if the old Singer tubes are made of lead, and if this could be a potential hazard. The metal feels very soft and malleable, like lead. I am thinking things like -- if there are traces of lead in the lube, will it vaporize at temperatures attained by the gears or the motor? If lube gets on your skin, could lead be absorbed by the skin? I confess to being phobic, in case y'all didn't notice that already.