Same experience as Nick, used for 30 plus years, not had it happen, this has come up before. There are 4 options for fitting the plate and more than one type of sump plate/ magnet combo available., so given that its pretty difficult to make stuff idiot proof there probably is a combo of fits / magnets that will do something wrong.
71 Devimead A65 750 56 Norbsa 68 Longstroke A65 Cagiva Raptor 650 MZ TS 250 The poster formerly known as Pod
i have an ordinary office supply store magnet wired to tbe screen inside the oil tank on my old OIF.
not as immediate as one in the sump, but less controversial.
Into the distance a ribbon of black Stretched to the point of no turning back A flight of fancy on a windswept field Standing alone my senses reeled A fatal attraction is holding me fast how How can I escape this irresistible grasp?
I had the ball stick twice on a plate with a magnetic drain plug in the center of the plate. Switch to one from SRM with the drain in the back of the plate and no more problem. This is a quote from SRM: "Note our kits have the drain plug situated in the correct position, some on the market I have seen the magnet too close to the pick up pipe and the magnet holds the ball bearing down in the scavenge pipe, resulting in oil not being bale to be returned to the oil tank. Drain plug must be fitted facing rear wheel." Here's their ad http://www.eBay.com/itm/BSA-A7-A10-A50-A65all-years-sump-filter-kit-/272521684317?hash=item3f738ee55d:g:2nUAAMXQydtTNFZF&vxp=mtr
Some of the cheaper drain plates have the plug in the center.
Bit of a harsh statement. I bought a billet one with the plug in the centre. Never given a moments trouble. The previous one was a cast unit with the drain at one end, the threads came out with that one on one day.
Hi All Position of the drain plug is one consideration, the strength of the magnet is the other (there are magnets and there are magnets!!!!) I had the ball in the pickup stick on a pre unit BSA because of the magnet strength I reported the issue to the makers who now give instructions on the fitting position of the plate and drain plug