Today's Message Index:
----------------------
1. 05:48 PM - Elevator Push Rod Issue (David J. Fritzsche)
2. 06:01 PM - Re: Elevator Push Rod Issue (Linn Walters)
3. 06:45 PM - Re: Elevator Push Rod Issue (Robert Jones)
4. 09:23 PM - Re: Elevator Push Rod Issue (David Saylor)
Message 1
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| Subject: | Elevator Push Rod Issue |
I have fabricated the F-1089 elevator push rod, drilled the ends, and
deburred and smoothed out the inside of the tube. When I try to insert
VA-111 into the push rod it does not fit. I have used a Scotch brite
pad on the inside of the tube to try to expand the opening enough for
VA-111 to fit, but after quite a bit of circling the pad on the inside
do not seem to be making much headway. Anyone else had this problem and
if so how did you solve it.
Dave
Working again on 40813 fuselage
Message 2
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| Subject: | Re: Elevator Push Rod Issue |
Don't remember any problems .....
If you take your deburring tool to the inside edge of the tube and
outside edge of the VA-111 to create a 'ramp' you may have better
results. Just thinking out loud ....
Linn
On 1/28/2017 8:44 PM, David J. Fritzsche wrote:
>
>
> I have fabricated the F-1089 elevator push rod, drilled the ends, and
> deburred and smoothed out the inside of the tube. When I try to
> insert VA-111 into the push rod it does not fit. I have used a
> Scotch brite pad on the inside of the tube to try to expand the
> opening enough for VA-111 to fit, but after quite a bit of circling
> the pad on the inside do not seem to be making much headway. Anyone
> else had this problem and if so how did you solve it.
>
> Dave
>
> Working again on 40813 fuselage
>
>
Message 3
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| Subject: | Re: Elevator Push Rod Issue |
I made the push rods quite a while ago and I do remember that it was a tight fit.
I sanded the threaded end pieces a little and made sure the tube was really
smooth on the inside. I still had to screw a grade 8 bolt in the end to extract
them after drilling to debut and prime them on the inside.
Robert Jones
702-521-1840
> On Jan 28, 2017, at 20:00, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
>
> Don't remember any problems .....
> If you take your deburring tool to the inside edge of the tube and outside edge
of the VA-111 to create a 'ramp' you may have better results. Just thinking
out loud ....
> Linn
>
>> On 1/28/2017 8:44 PM, David J. Fritzsche wrote:
>>
>>
>> I have fabricated the F-1089 elevator push rod, drilled the ends, and deburred
and smoothed out the inside of the tube. When I try to insert VA-111 into
the push rod it does not fit. I have used a Scotch brite pad on the inside of
the tube to try to expand the opening enough for VA-111 to fit, but after quite
a bit of circling the pad on the inside do not seem to be making much headway.
Anyone else had this problem and if so how did you solve it.
>>
>> Dave
>>
>> Working again on 40813 fuselage
>>
>>
>>
>>
>>
>
>
>
>
Message 4
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| Subject: | Re: Elevator Push Rod Issue |
You might try just double checking the OD and ID to make sure they're
close. I'd guess they should be within two or three thousandths. If
they're close, try heating the tube with a heat gun--not too hot--and
putting the plug in a freezer for a while. For a close interference fit,
that usually helps a lot.
--Dave
On Sat, Jan 28, 2017 at 5:44 PM, David J. Fritzsche <dfritz@bpgsim.com>
wrote:
>
>
> I have fabricated the F-1089 elevator push rod, drilled the ends, and
> deburred and smoothed out the inside of the tube. When I try to insert
> VA-111 into the push rod it does not fit. I have used a Scotch brite pad
> on the inside of the tube to try to expand the opening enough for VA-111
> to fit, but after quite a bit of circling the pad on the inside do not seem
> to be making much headway. Anyone else had this problem and if so how did
> you solve it.
>
> Dave
>
> Working again on 40813 fuselage
>
>
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