Posted by OldFarmall450 on June 08, 2016 at 12:43:09 from (96.46.218.49):
In Reply to: Stuck motor posted by 37Chief on June 08, 2016 at 10:24:53:
My older brother turned wrenches all his life, had a dozen "projects" going when he passed away this January, and ALWAYS said "Save the motor overhaul for last, or not at all." If the motor used oil he said it would rarely lock up, because the worn rings let oil coat the cylinders and pistons. A rebuilt motor with new rings wipes the oil from both and if left alone will lock up in a hurry.
It seems some people will restore a tractor, car, plane, etc. Then they rebuild the motor and put it in their barn, cranking it when company shows up or family gatherings. That motor is destined to lock up.
If a motor doesn't have the compression to do what you want of it, then a rebuild is in order. But remember that motor MUST be turned over regularly or it will lock up tight as Dick's hatband.
Dad found a model A JD, the motor was locked from rain. He pulled the plugs and poured straight marvel mystery oil in them. He did this monthly, and after a year of this the motor broke free and is running today, 30 years later.
Good luck with your motor, don't rush it and you may not have to go thru it again.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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