Hi Bob,
I read a lot about binding relief in the archives indeed - never a
mention of too much play...
Regards,
Jan
Robert C Harrison wrote:
>
> Hi! Jan
> It looks to me that you have serious discrepancy of tolerances.
> In my experience most folks had "binding" of these bushings and needed
> to "bed" them in by the use of a copper cleaning item called "Brasso" to
> free up any stiffness.
> Regards
> Bob Harrison .
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Jan de Jong
> Sent: 12 June 2009 11:16
> To: europa-list@matronics.com
> Subject: Europa-List: rear bearing play problem
>
>
> I would like some advice.
>
> I am at the end of Ch 13 where the aileron drives have been installed on
>
> the bottom of the cockpit module including cross tube and sticks.
> I find I have a problem. When exercising a stick sideways while holding
> the cross tube there is play in the corresponding rear bearing - tufnol
> CS06 and CS07 aluminium flange. Port side worst. Bang - bang - bang. I
> think there is about 10 mils (0.25 mm) room. The bearings.are not
> greased/oiled yet and I can actually see light through the crack. When
> one holds the cross tube the resulting play at the top of the port stick
>
> is about 0.5 mm (arm roughly doubled). It seems like a little but I fear
>
> this will be annoying in operation.
>
> I'm not looking forward to replacing the tufnol parts. Removing the CS07
>
> from the steel tube undamaged will be essential if I want to keep all
> the rest of the setup.
> If I have to then heating the tube from the inside with a halogen bulb
> may work best
> Another question is whether replacement CS06 from Europa will be a
> better fit (I don't remember doing anything to the insides of the
> offending ones).
> ACS has 1/2" micarta if necessary.
>
> Any thoughts very welcome.
>
> Jan de Jong
>
>
>
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