Ahh, memory...thanks Rob. I dug into the bowels of brain cells and remember first looking at the master cylinder, suspecting that it was a motorcycle component, then found the Cleveland part number. I now remember my relief, and recall also pricing a replacement, which I have not needed. Best I can tell, my master cylinder has never been removed. Certainly not while in my possession for 15 years or so, working perfectly with DOT 3. If I remove my gas tank for antenna wiring this spring, I probably ought to do preventative replacement of O rings/ seals. Regarding the BMW battery I mentioned earlier, that is the only one I have found that will fit the glass battery box/surround. All the aftermarket ones I find are about 1/4 inch taller. I run them about three years before replacement. Works out to about $5 a month, incidental to aircraft ownership.
On Mon, Jan 4, 2021 at 10:08 PM Rob Thompson <amessageto...@gmail.com> wrote: > Yep, fuel cap is from a BMW 2002. > > Master Cylinder is a Cleveland 10-5 > > https://aircraftpartsandsalvage.com/aircraft-parts/airframe/general-airframe/landing-gear/wheels-and-brakes/cleveland-brake-master-cylinder-10-5-2/ > > Make sure you replace the park brake shaft seals at the same time as the > cylinder seals. > > Highly likely that you could modify the mounts to accommodate a > motorcycle master cylinder at a tenth of the price! > > regards > Rob > > Rob Thompson > 0429 493 828 > > > > On Tue, Jan 5, 2021 at 2:22 PM Michael Stockhill <sto...@gmail.com> wrote: > >> It has been too long to be definitive but I recall researching this years >> back. Nearly poditive that I determined the Cleveland O rings are >> compstible with DOT 3. And I can be corrected, but I recall that the master >> cylinder is motorcycle. BMW, like the gas cap and battery. >> >> On Mon, Jan 4, 2021, 6:39 PM Ian Williams <i...@agcon.co.nz> wrote: >> >>> Gidday Kurt, >>> I may be able to shed some light there. >>> Not sure if yr H36 is ex Thai but military tend to ignore any >>> manufacturers type certificate, Plus the normal brake fluid they use is >>> the aircraft stuff. >>> So dot4 is of course automotive. >>> It does sound as if U will need to replace all the seals. As Rob said >>> the brakes themselves are Cleveland replacement seals should be easy to >>> get. Not sure about the master cyl tho >>> >>> Best regards >>> Ian Williams >>> >>> Sent from my iPhone >>> >>> > On 5/01/2021, at 2:17 PM, Kurt Redinbaugh <redinbau...@gmail.com> >>> wrote: >>> > >>> > Thank You Rob for your prompt response on my brake caliper question. >>> > I am a bit confused though... >>> > On pp44 of the HOFFMANN AIRCRAFT "instructions for continued >>> airworthiness" it emphatically states that DOT 3 brake fluid is used and >>> that MIL-5606 is NOT to be used. My brake reservoir had a red tint to it >>> when I put S/N 3660 back into service after 12 years as a hangar queen. >>> Last week I had a leak that drained the reservoir full of DOT 3. The >>> airplane is tied down on the ramp at the Reno-Stead airfield and is >>> completely covered. The weather has been freeze-thaw cycles lately. The DOT >>> fluid I used was fresh and stored in a factory sealed container. I have >>> ordered O ring number 101-02300 from Aircraft Spruce to replace the failed >>> seal in the caliper. >>> > I have seen in the DOG that MIL-5606 fluid is to be used. Is there an >>> explanation for this seeming contradiction? >>> > As always thanks for your support >>> > Kurt >>> >>> >>> --------------------------------------------------------------------- >>> 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: dog-unsubscr...@lists.riverland.net.au >>> >>>
