YS110 spinner question

Oct 12, 2004 11 Replies

Hi Chaps,



For the first time ever I bought an aluminium spinner (JP 64 mm diameter type). This is the sort that has an adaptor that screws onto the prop shaft and then the spinner is retained by a bolt that screws into the adaptor. (There is also an adaptor that sits in the base of the spinner and takes up slack there, this bit works great).



I specifically bought the spinner for use with a YS 110 and had the presence of mind to measure the shaft on this engine first. It measures 7,97mm which I presumed to be an M8 thread.



However although I bought the appropriate M8 adaptor at the same time as I bought the spinner it doesn't seem to fit. There was another adaptor supplied with the spinner and this one screws on for around a turn and a half, the M8 adaptor I bought however only screws on for a half a turn or so.



So it seems I was wrong about the thread on the YS ? Or something ? Can anyone tell me what I'm doing wrong ?



Thanks,


The thread is M8 Fine which has a pitch of 1mm Normal M8 has a coarser pitch

Doug

Thanks Doug, so can anyone tell me where I can get hold of an M8 fine thread spinner adaptor for a JP 64mm spinner ?

Thanks again,

Just Engines is probably your best bet.

HTH John.

Try Probuild Tel: 01258 840111

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They do everything for YS engines.

David.

Including spinners at £33 a pop... :-(

Well, I had a quick look on their webite and it doesn't mention spinners or adaptors at all. I got an email back from JP saying there isn't a fine pitch M8 adaptor available so it looks like I've wasted a tenner there anyway.

Thanks to all who replied.

What's the thread of the screw for the spinner?

Doug

The engine prop shaft is threaded M8 Fine and the internal thread of the adaptor is M8 coarse :-(

No, I meant what's the thread of the screw which holds the spinner to the adapter.

Oh ISWYM : M4 according to the packaging, it's 3.86mm in diameter anyway.

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