Posted by: gipf - 02 October 2010 15:28:20
Hi, could someone tell me the size (in mm ) of the fan nut on a 30hp engine. Thanks Marc.

Posted by: Sunroof53 - 02 October 2010 16:36:05
Thread size,spanner size ,or dimensions to make one? The thead size is M12 x1.5mm pitch .Early nuts were 36mm across the flats(spanner size)and later were 21 mm. Mike.

Posted by: gipf - 02 October 2010 23:08:37
[quote=Sunroof53]Thread size,spanner size ,or dimensions to make one? The thead size is M12 x1.5mm pitch .Early nuts were 36mm across the flats(spanner size)and later were 21 mm. Mike.[/quote] Thanks. It was the spanner size i was looking for, so now i can take the fan off.