Knock On Panasports - Spinner Threads

[ElliottN]

I have just fitted a set of knock on, 5" x 13" Panasports to my S4. Had them for a few years and finally got around to fitting some new tyres and putting them on the car.

The geometry of the Panasport wheel centre with the steel ring for the bearing the spinners reduces the number of theads I can get the spinners on with the Panasports to about 4 to 4 1/2 threads - or full spinner turns - each on the rear wheels (slight variance one side to the other). The fronts are fine as they always gave several more threads than the rear hubs with the steel wheels anyway.

I'm a little nervous about the rears with so few threads for the spinners.
Should I be?

[el-saturn]

.if you use the equation: 0,8 x thread dia. = min. thread length THEN there IS (that's steel nut with a steel bolt) i.m.o. something to worry about (brass steel'd call for even more?!) ------------ we'd wire the nuts anyways BUT much more thread of course!! sandy

[Panda]

Hi Elliot, My measuring makes that between 10-12mm of depth, which with a brass spinner doesn't seem enough. Have you enough thickness in the steel sleeve, which is removable, to enable machining a few mm. off, and still have clearance for the spinner? The other option may be to machine the alloy wheel inner hub face, again only if you have enough thickness.
cheers Alan P.

[ElliottN]

Alan,
Good input. Thanks.
Will measure the actual spinner/wheel spoke clearance and get the rings machined first (easy option). I should be able to get a couple of mm off and still leave room for fitting/tightening, If I can get at least 6 turns on by hand I'll feel a lot more comfortable.
Machining the wheel hub face would be a rigmarole and has pro's and con's - more threads for the spinners (and comfort for clearing the fenders with my new tyres!) but have to watch how close the tyres get to the spring perches (already beaten in) and wheels to the lower suspension/hub linkage bolt heads. My visual on these is that I have about 5-6mm clearance worst case with these now and I need to keep some room for flexing - but I'll measure to check.

We'll have to stop meeting like this!