ok thanks for all the advice, the weather has cleared up and i was able to manage to pull out the master, took it over to my buds shop and using the vice the plug came off.
QUESTION: would it be wise to buy the rebuilt (sells for 39.99) or buy a rebuilt master for 49.99 (ebay) the concerned my bud said was that the inside of my master might be damaged due to being old? or unusable?