All glow plug engines start to look grotty after a while, mainly due to baked-on oil from the fuel.<\/p>\n\n\n\n
But there\u2019s a simple way to bring your engine up to as-new appearance \u2013 in minutes.<\/p>\n\n\n\n
All you need is a spray can of oven cleaner and an old toothbrush.<\/p>\n\n\n\n
It\u2019s important to use a brand of oven cleaner that doesn\u2019t contain caustic soda, because this attacks aluminium. I use \u201dMr Muscle\u201d which I get at my local IGA supermarket, but no doubt there are other brands of the same thing.<\/p>\n\n\n\n
I spray \u201cMr Muscle\u201d all over the engine (some eye protection is a good idea but it doesn\u2019t irritate bare skin) and scrub it in to all the nooks and crannies like cylinder fins with the toothbrush. Plug any orifices such as the carb air intake and the exhaust port if you\u2019ve taken the muffler off with tissues or paper towel. Soon you\u2019ll see the baked-on oil coming off and bright aluminium showing through.<\/p>\n\n\n\n
Rinse the oven cleaner off in hot water, using your toothbrush again, and let it dry.<\/p>\n\n\n\n