Fixing bolt *hole* elongation, rather. On Tue, Jul 1, 2025 at 5:05 PM Kristin Nowell <[email protected]> wrote:
> Righto Ian - come to think of it, I found oval elongation in the fixing > bolts there ! I reamed it (carefully, minimally) back to round and fitted a > thin shim around the bolt shaft until all was tight again.🙂 > > On Tue, Jul 1, 2025 at 5:00 PM Ian Williams <[email protected]> wrote: > >> Yep I’m thinking about that. Also the cable steering bracket on top of >> the tailwheel shaft maybe loose. >> Sent from my iPad >> >> On 1 Jul 2025, at 21:46, Kristin Nowell <[email protected]> wrote: >> >> >> The tailwheel shimmy might also be a loosening in the bearing set that >> holds the tailwheel fork - quite a lot of pieces to the assembly ! >> >> On Tue, Jul 1, 2025 at 4:42 PM Kristin Nowell <[email protected]> >> wrote: >> >>> If your brakes still work it might be the reservoir or associated tubing >>> leaking (?) The tubes stiffen over time, and the reservoir becomes brittle. >>> >>> On Tue, Jul 1, 2025 at 10:12 AM Ric Sutton <[email protected]> >>> wrote: >>> >>>> Hi Gyozo. >>>> Depending on where its leaking from it may be easily repairable. >>>> Mine (dimona mk1) was leaking from the park brake valve portion of the >>>> master cylinder. if memory serves me correctly I replaced the o-rings on >>>> that valve and it was good to go. >>>> cheers >>>> ric >>>> ------------------------------ >>>> *From:* [email protected] <[email protected]> on >>>> behalf of Laurie Hoffman via dog <[email protected]> >>>> *Sent:* Tuesday, July 1, 2025 2:13 AM >>>> *To:* [email protected] <[email protected]> >>>> *Subject:* Re: [DOG mailing list] Master brake cylinder >>>> >>>> We found that tightening the steering cables rectified bad shimmy on >>>> the straight shaft tail wheel. >>>> Although the suspension tailwheel with the rubber blocks still shimmied >>>> badly after that >>>> I suspect it might be related to softening (or hardening?) of the >>>> blocks over time that may be involved. >>>> With the super Cub we found keeping it highly inflated helped a lot on >>>> sealed surfaces which would have been due to less tread surface making >>>> contact with the bitumen I think. >>>> The other possibility is a slightly bent vertical shaft due heavy >>>> landings and thus throwing the geo.etry out. There is a hell of a lot of >>>> load on the tailwheel on landing particularly on rough ground. >>>> Laurie >>>> >>>> Yahoo Mail: Search, Organize, Conquer >>>> <https://mail.onelink.me/107872968?pid=nativeplacement&c=US_Acquisition_YMktg_315_SearchOrgConquer_EmailSignature&af_sub1=Acquisition&af_sub2=US_YMktg&af_sub3=&af_sub4=100002039&af_sub5=C01_Email_Static_&af_ios_store_cpp=0c38e4b0-a27e-40f9-a211-f4e2de32ab91&af_android_url=https://play.google.com/store/apps/details?id=com.yahoo.mobile.client.android.mail&listing=search_organize_conquer> >>>> >>>> On Tue, Jul 1, 2025 at 8:15 AM, Ian Mc Phee >>>> <[email protected]> wrote: >>>> Over inflation can start it - we have rubber shock version. >>>> >>>> Ian McPhee >>>> +61 428847642 >>>> >>>> On Mon, 30 June 2025, 20:03 Ian Williams, <[email protected]> wrote: >>>> >>>> Hi all, >>>> I have just had an interesting flight in a Dimona at Swansea in the UK. >>>> … operating on a sealed strip >>>> Had real bad tailwheel shimmying on landing >>>> The tailwheel asst is one of those rubber sprung types >>>> Any ideas the best approach to fix the prob >>>> >>>> Ian W >>>> In uk but normally New Zealand >>>> Sent from my iPad >>>> >>>> On 21 Jul 2022, at 13:02, pattoninfl.aol.com via dog < >>>> [email protected]> wrote: >>>> >>>> >>>> Gyozo, >>>> >>>> It's a master cylinder used in Piper Cherokees. I replaced mine about 1 >>>> year ago. I bought mine from a aircraft junkyard here in the US. >>>> >>>> Regards, >>>> Bruce Patton >>>> >>>> >>>> -----Original Message----- >>>> From: Győző Horváth <[email protected]> >>>> To: [email protected] >>>> Sent: Thu, Jul 21, 2022 2:55 am >>>> Subject: [DOG mailing list] Master brake cylinder >>>> >>>> Hi, >>>> >>>> It seems that there is a leakage at master brake cylinder of my Dimona. >>>> The belly is full with brake fluid, however the brake still works well. Do >>>> you have experience with it? Is it a Cessna cylinder? What kind of parts >>>> should be ordered for repair and do you know the specifications and source? >>>> >>>> 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] >>>> >>>>
