Subject: E-Shaft Bearing
From: Rotary Engine
Date: 11/1/2006, 1:21 PM
To: AA-me


On the needle [thrust] bearing in the end of the e-shaft, is it necessary to
remove the outer race? I dug out the bearings and cage but am having a time
with the outer
race.   Karibian

Which part are you having trouble with?

--
Paul Lamar ...No rotor no motor.

 I'm referring to the little needle bearings in the flywheel end of the E
shaft that Tracy said had to be removed. He said he sometimes had to
delicately grind it out. Karibian

Those are not the thrust bearings. Those are the manual
transmission input shaft pilot bearing. Yes it must be
removed to use Tracy's input shaft. Probably a Dremel
tool will work.

Paul Lamar ...No rotor no motor.

There is another mechanics trick to help in situations like this:
Make a nice fitting punch with a diameter just a few thou smaller
than the ID of the bearing, bushing, or shell, to be removed.
Fill the cavity with grease.
Push the tool  into the grease, at least enough to get it aligned.
Smack it sharply with a hammer.
Bingo the shell will be hydraulic'd backwards, and out.
Repeat as necessary

-Reeves




Save me some typing Paul (it is painfully slow and you are sooo organized)
and post one of you explanations of grease filling and dowel hammering.

John

Basically what Reeves is saying: you are converting the hole
to a hydraulic cylinder. The punch is the piston.
The grease is the fluid.
The open end bearing shell looks like a short piece of tubing.
It is a light press fit in the hole.
Since the bearing shell surrounds the piston forcing the piston
into the bearing shell with a hammer puts high pressure on
the inner edge of the open end bearing shell forcing the bearing
shell up and out of the hole.

Paul Lamar ...No rotor no motor.

Just got my new xpaint working.

Here is a diagram on Reeves's trick.
Red is the punch.
Blue is the grease.
Green is the needle bearing shell.

-- 
Paul Lamar ...No rotor no motor.

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