25-08-2022, 09:01 AM
Just thinking to myself while sitting here in hospital. All passageways must have got there somehow.....I think usually by drillings. Where corrosion build up suspected....nay almost certain......try work out where a drill could have been inserted. Even drill a new opening down into passageway. Nothing to loose if all other cleaning methods used and bits unusable anyway. Part fill passageways with fine sharp sand and carry part around in your cars......never know, may just "sand blast" clean enough. 
