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Thanks Mark and Barny for the information on pulling a 20B
apart.
I guess what I need now is that e-shaft puller and a diagram
of what you were describing to me Mark.
Anyone got one for rent?
I'll need it two weeks from now.
Wade
----- Original Message -----
Sent: Monday, September 15, 2003 6:16
PM
Subject: [FlyRotary] Re: 20B
Wade,
My eshaft was extra ornery to get off. I hope
this isn't going to be a big problem for you. Tried several hydraulic and
hammering devices. What finally worked was renting Bruce Turpentine's
eshaft puller. With several hours of attempting to remove it, Bruce's did it
in less than 5 minutes. As usual the right tool for the job.
Way to go Mark.
Barny
MGDQ 20b
----- Original Message -----
Sent: Monday, September 15, 2003 7:10
PM
Subject: [FlyRotary] Re: 20B
Wade,
The 20B has a 2-piece eccentric shaft that must be
split to disassemble the engine. You should remove the #1 rotor, rotor
housing and front shaft, then #3, and finally #2. There is a threaded
hole in the rotor journal of the front shaft that you can thread an
all-thread into. I first tried a slide hammer approach, but that
didn't work. A good friend loaned me his home made adapter. It
consists of an all-thread, and a 1" thick plate with a hole that slips over
the all-thread. The 1" plate should be about 4" wide and 8 - 10" long,
but that's not critical, you just need the length for added
leverage. Using the plate and a large nut, you position the 1"
plate down onto the all-thread until it touches the end of the main shaft
(extends through the smaller shaft out the front of the engine). It
should touch the e-shaft about an inch or so from the all-thread.
Screw the nut down to where it is touching the 1" plate, and then go about a
half a turn extra. One or two blows with a medium sized hammer/mallet
on the outer edge of the 1" plate will pop the small shaft off the main
shaft. Suggest you use a piece of aluminum or brass between the 1"
plate and the front of the e-shaft to prevent damaging the threads. I
was amazed at how well this simple puller worked.
Note: the e-shaft
should be supported from the flywheel end when you smack the 1" puller plate
with the hammer.
Hope this helps,
Mark Steitle
20B - First run
of rebuilt engine 9/14/03 ! ! !
At 02:35 AM
9/15/2003 -0700, you wrote:
Guys,
I'm in the process of
pulling the housings off of my 20B.
I have Bruce
Turrentine's video and I knew it would be a little different from a
13B.
I got the rear side housing, rear rotor
housing and rotor off, but I cant seem to find the way to get the
next side housing off. I tried the method as shown in the video. I've
lifted the shaft but the housing but it doesnt want to move toward the
eshaft so I can rotoate it off.
Anyone know the
method for a 20B?
Thanks,
Wade Bush
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