Reynard
Guru
- Location
- Cambridgeshire, UK
'Ere, don't go saying I'm to blame when the spanner goes flying when you hit it.
My method is a stilson and use the extra leverage it gives.
When was the last time you removed those blades? That "stringy stuff", great technical explanation there, may actually be just that. String, or a fine piece of cotton fabric wrapped round, prior to the bolts being put in place. If that's the case WD40 won't free it.
It's not string. It're the tough, woody fibres from nettle stalks that've just worked their way into the blade spindle housings.
No evidence of any string wrapped around the bolts. Or grease or anything else.