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Old 02-19-2010, 06:19 PM   #1
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Default What is the best way to pull a bearing?

May have to pull a bearing from a motor and was curious to how to do it without having to pay out the 60 bucks for a bearing puller?
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Old 02-19-2010, 06:26 PM   #2
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May have to pull a bearing from a motor and was curious to how to do it without having to pay out the 60 bucks for a bearing puller?
The best way to get bearings out of an engine is to heat it up in the oven and then the bearings fall out.be sure to take the carb off.
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Old 02-19-2010, 06:59 PM   #3
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If you race ask a local with a bearing puller. The oven method works although sometimes need a wooden dowel to give it that extra umph
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Old 02-20-2010, 12:01 AM   #4
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i like to use the propane torch it applies the heat much faster and the bearings dont expand as fast so they come out easier
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Old 02-20-2010, 07:24 AM   #5
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I have a Milwaukee Heat gun and it heats the motor up in a vise to well over 250 and quick, grab the motor with a welding glove, tap on a piece of wood and they fall right out.
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Old 02-20-2010, 08:03 AM   #6
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I have a Milwaukee Heat gun and it heats the motor up in a vise to well over 250 and quick, grab the motor with a welding glove, tap on a piece of wood and they fall right out.
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Old 02-20-2010, 08:34 AM   #7
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I use my wifes little toaster r oven set at 275 for about 8 min .. use an oven mit to grab it and have a 4x4 piece of wood to smack it on (back plate side) if it doesnt fall out turn the heat up a little some motors are tighter then others...
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Old 02-20-2010, 11:40 AM   #8
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hey ive never pulled bearings before but i need to on a jpx.21..just to be clear the rear bearing comes out through the backplate?? is this the same way to remove the front bearing only out the front i would asume?
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Old 02-20-2010, 12:43 PM   #9
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Heat gun and a wooden dowel for me...Just make sure to not use anything metal...You can't get yourself into trouble with a dowel.
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Old 02-20-2010, 02:52 PM   #10
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When you put the new bearing in, heat up the engine and put the bearing in the freezer for about 10 min. then press the new bearing in. My brother uses a socket that just hits the outer race of the bearing to tap in in. Don't put any pressure on the inner race, could cause damage to the bearing.
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Old 02-20-2010, 03:15 PM   #11
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Be sure to place the bearing(s) in the right way.

For the rear bearing it is better to put it first on the crankshaft and drop in the shaft with the bearing. It takes out the possibillity the bearing goes wrong.
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