Have a very old (Ariens, 30 yrs of age) snowblower that has a cast iron,
apparently, gear case.
They sure did build them in those days.
Has a grease/oil fill plug on it (NPT I think) that I would like to remove,
Have tried the Liquid Wrench treatment, and also a torch on it.
Really frozen solid.
Nothing has worked.
Is there anything "better" than Liquid Wrench available ?
Any thoughts on how to remove would be most appreciated.
Yet more heat, on the case, around the plug. Like, with oxy-acetylene
burn tip (minus central oxygen jet of course) until it glows. I'd make
sure the plug was not in contact with the oil, and heat it quickly,
intensely, and carefully.
Especially if it's a cast plug, impact wrench likely will just shear it
Or, drill plug and use extractor. If really bad, you might try
drilling it out to just shy of the threads and then re-tap the threads.
Depending on orientation, you might have problem with chips getting
Some old-timer may have a can of Chrysler manifold heat-control-valve
solvent. Great stuff, with moderate heating, for getting frozen stuff
IF you figure out how to do it let me know. For the last 10 years, I've just
tipped mine over and emptied the oil out of the fill spout. IF you have the
same fill plug I have, I think your supposed to wedge a long srew driver
between the prongs and use it as a lever. I bent my screw driver....never
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