=EF=BB
=EF=BB
Hi William etal,
Oops! Typo! Its simple 308 SS welding rod.
And here is my post-repair update:
Although I had my 0.098=9Dpins and reamer at the ready, I found I did n
ot need to use them.
I found the 3/32 welding rod fit very nicely in stock new hinge (without the
standard new slop, and no binding), so =9Cassumed=9D they would
still be too small for my worn hinges.. but, I found that when I i
nserted it into my worn hinges that it eliminated all *noticable* slop - so m
ission success (for now). I did find that when inserting the 3/32 into the l
ess worn outer aileron hinge that it went in tight, but that is without prep
ping/cleaning the hinge of it=99s lubricant/contamination.
I can only assume that my hinges were =9Chammered=9D with a pin-
groove out of round, and the 3/32 still provided enough remaining circular c
ontact area to provide a still snug fit? Time will tell how long this arran
gement remains play-free, but all my hinges (including the loose anti-servo t
abs) are now play-free.
I would highly recommend that all new hinges be modded with the 3/32 rod, as
it provides more circular contact area on the pin, reducing the point conta
ct hammering effect and wear, as per original referenced lancair builder
=99s website http://www.n91cz.com/HingePlay/hinges.htm (thanks again to J
im Butcher!)
Fingers x=99d :-D
Cheers,
PeteZ
> On Nov 2, 2022, at 9:16 AM, William Daniell <wdaniell.longport@gmail.com> w
rote:
> =EF=BB
> Pete
> I read your post with interest.
> My hinges have significant slop and have done from new.
> So (displaying my ignorance) were does one typically get a 3/32 3087 weldi
ng rod? I can see 308 weld rod on line but not 3087.
> Will
> William Daniell
> LONGPORT
> +1 786 878 0246
>
>
> On Mon, Oct 24, 2022 at 3:21 PM Pete Zut <peterz@zutrasoft.com> wrote:
>> Indeed I won't be surprised if the new rods to fit snugly into the pounde
d out holes... that would be "too easy" lol (but not ideal as they will pou
nd out again sooner de to uneven seating/support)
>>
>> In case they are too tight, I have also sourced a 0.098" reamer locally (
equates to a #40 drill size).
>>
>> Finger's x'd that this works, as the hinges on the aileron and anit-servo
tabs are glassed in on one side :-(
>>
>> Cheers,
>> PeteZ
>>
>>
>> On Mon, Oct 24, 2022 at 3:08 PM Dpc <dpc@knightonweb.com> wrote:
>>> Pete
>>>
>>> Glad you managed to source what you needed from the US. Can I ask how yo
u are planning to ream out the hinges to take this new, larger pin, or are t
he hinges sufficiently worn that a 2.5mm pin will just slide in anyway?
>>>
>>> Thanks
>>>
>>> David
>>> GBWJH
>>>
>>>> On 24 Oct 2022, at 18:16, Pete Zut <peterz@zutrasoft.com> wrote:
>>>> =EF=BB
>>>> update: just now I did manage to a place a credit card order using my o
ld zutrasoft inc. company. :-D
>>>> (last time they refused)
>>>>
>>>> Fingers x'd!!!
>>>>
>>>> Cheers,
>>>> PeteZ
>>>> C-GNPZ
>>>>
>>>> On Mon, Oct 24, 2022 at 1:08 PM Pete Zut <peterz@zutrasoft.com> wrote:
>>>>> Sadly McMaster Carr will not entertain any Canadian Customers unless t
hey are a large commercial account.
>>>>>
>>>>> My hinges are worn and require replacement or reaming/fitting larger p
ins (a common issue for all us flyers). Std 3/32" 3087 welding rod would be
a terrific idea for all new builders - to replace the factory-loose pins in
std aviation extruded hinge material, and prevent/reduce this wear issue. S
adly, once worn, 3/32" will no longer fix a worn hinge problem.
>>>>>
>>>>> Thus I am looking for a unicorn size 2.5mm (0.098") stainless (308/316
etc) close tolerance rod.
>>>>>
>>>>> The only place I've found it is of course Mcmaster Carr - who will not
take my order. Is there a kind USA-based Europa-ite willing to order for me
and re-post to me up here in Ottawa, ON, Canada K2S1L1?
>>>>>
>>>>> the item in question which may also be helpful for other builders/flye
rs:
>>>>> https://www.mcmaster.com/rods/diameter~2-5mm/
>>>>> "Combine these general purpose drive shafts with gears, sprockets, and
bearings to transmit rotary motion. All are precision ground to meet tight d
iameter and straightness tolerances.
>>>>>
>>>>> Stainless steel shafts are more corrosion resistant than steel shafts b
ut also more difficult to machine. 316 stainless steel shafts have excellent
corrosion resistance.
>>>>>
>>>>> Shafts with chamfered edges have their edges ground to reduce damage t
o bearings, housings, and other components during installation.
>>>>>
>>>>> 3D CAD models availableFor technical drawings and 3-D models, click on
a part number.
>>>>> Lg. Lg. Tolerance Straightness
>>>>> Tolerance Edge Type Hardness
>>>>> Rating Hardness Yield
>>>>> Metric=94316 Stainless Steel
>>>>> 2.5mm Dia. (Tolerance: -0.005mm to 0mm)
>>>>> 200mm -0.25mm to 0.25mm Not Rated Chamfered Medium Rockwell B83 42,000
1265K24 $15.67"
>>>>>
>>>>> Many thanks!
>>>>> PeteZ
>>>>> C-GNPZ
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