Try about 2 washers under rubber shocks as makes tail wheel slightly more vertical which should help.
Ian McPhee +61 428847642 Box 657 Byron Bay NSW 2481 Australia On Tue, 22 Sep 2020, 15:36 Győző Horváth <[email protected]> wrote: > Hi Ian, > > Thank you for your answer. > I have the later version tailweel with rubber shocks. > Unfortunately I experienced the shimmy with different pressure in tyre > between 2,5-3,1. > > BR > Gyozo > > 2020. szept. 21. dátummal, 13:25 időpontban Ian Mc Phee < > [email protected]> írta: > > > I find slightly less pressure in tail wheel tyre helps. Do you have the > rubber shocks in tailwheel on later versions or is it fixed without any > rubber springing?. If former version I add a few washers to make the tail > wheel more vertical. Go to google and tail wheel shimmy and you will see > pawnee scott tail wheel and poor angle and better set up. > > Ian McPhee > 0428847642 > Box 657 Byron Bay NSW 2481 Australia > > On Mon, 21 Sep. 2020, 20:04 Győző Horváth, <[email protected]> > wrote: > >> Hi Rob, >> >> Is it possible to quantify somehow the tightness of the turnbuckles? >> Just making the experiments is problematic because of the need of taking >> out the fuel tank.☺️ It would be good some objective measurement. >> >> BR >> Gyozo >> >> >> Az iPhone-omról küldve >> >> 2020. szept. 21. dátummal, 10:09 időpontban Rob Thompson < >> [email protected]> írta: >> >> >> If there is not much movement in the bearings, my suspicion is that the >> tail wheel spring turnbuckles are not tight enough. >> If the tailwheel spring turnbuckles are too tight you get VERY immediate >> response on the rudders on the ground. >> If they are too loose you get a "waffling" "inconclusive" response to >> rudder input. This can lead to shimmy. >> >> regards >> Rob >> >> Rob Thompson >> 0429 493 828 >> >> >> On Mon, Sep 21, 2020 at 6:01 PM Győző Horváth <[email protected]> >> wrote: >> >>> Hi Rob, >>> >>> Thanks for your advice. >>> We checked the shaft. >>> There is a tiny movement of the shaft. >>> Is there any acceptable limit (if yes, how it should be measured) or no >>> movement is required? >>> >>> BR >>> Gyozo >>> >>> 2020. szept. 20. dátummal, 8:45 időpontban Rob Thompson < >>> [email protected]> írta: >>> >>> >>> If your cables are properly adjusted, it is likely that the bearings on >>> the tailwheel shaft are a bit worn or the nut on the top of the shaft is >>> not tight enough. >>> Lift up the tail and check to see if there is any movement up and down >>> or side to side. >>> A small amount of forward pressure on the stick stops the shimmy. >>> >>> >>> regards >>> Rob >>> >>> Rob Thompson >>> 0429 493 828 >>> >>> >>> >>> On Sun, Sep 20, 2020 at 3:42 PM Győző Horváth <[email protected]> >>> wrote: >>> >>>> Hi, >>>> >>>> I often experience shimmy of the rear gear when I operate on concrete. >>>> It is linked to a certain speed during acceleration for take off and after >>>> landing as well. >>>> Springs and cables seem to be OK. Tyre is not worn. Pressure is OK. It >>>> happens on international airports with good quality asphalt as well. >>>> Does anybody of you have such experience? Why is it not allways, just >>>> often? >>>> How can I avoid it? How dangeruos it is to the glassfiber material of >>>> the tail. >>>> With many thanks and best regards >>>> Gyozo >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> --------------------------------------------------------------------- >>>> You are subscribed to the Dimona Owners Group mailing list. >>>> This list is archived in public. http://waikeriegliding.com/dog/ >>>> To unsubscribe, send email to: [email protected] >>>> >>>>
