Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines
The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Scale Model Gas Engines - Hit & Miss - Throttle Governed - Non-Compression – etc => Topic started by: 70Rcode on February 04, 2020, 01:18:47 pm
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No problem , Christian...i learn something everyday & forget this is a popular international read forum ! ...How & what tool did you clean up the break-thru, hard metal burr ? Thanks, tom.
Hi,
With a scraper
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No problem , Christian...i learn something everyday & forget this is a popular international read forum ! ...How & what tool did you clean up the break-thru, hard metal burr ? Thanks, tom.
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Or maybe it's a cutting oil applicator..please explain..thx again,..tom.
Yes, excuse me, Wick is the no we give for a drill
French is a bit complicated, a word can mean different things depending on the previous or following words
Well, then, my apologies.
Christian.
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I was thinking (& still am) asking about just getting the hole drilling Bit matetial type & bit speed sorted and totally misinterpreted he's beyond the hole drilling issue & addressing his installed oiler arraignment that uses 2 cotton "wicks" for oil storage & drip rate regulation but still needs valve or compression cap turned very slowly ..i guess ...amazing how the late nite world (& text postings) can read better after a 1/2 lb of bacon & a few stiff mugs of morning coffee brew !! ...thx for the help gang ...tom.
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Hi,
Had same question when I first read post as "wick" lead me to in my head read -
add an oiler
With normal "drill bit"
Re-reading and just picking this phrase
"add an oiler
With normal wick"
Poster might mean an oil cup stuffed with wick material as you defined.
Len
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Or maybe it's a cutting oil applicator..please explain..thx again,..tom.
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Hi Christian,...good to hear you got your cylinder oiler hole sorted ! ...could you give me a "wick" translation. Here in north america they are usually woven fabric used to burn oil fuel for illumination & heating uses...thx,...tom.
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Hi
I drilled the cylinder to add an oiler
With normal wick and cutting oil
You have to turn slowly
but, I still used 2 wicks.
Christian.
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Thanks Ade, for the afforfable, pro grade carbide drill bit sourcing link. Anxious to get a clean, burr-free oil hole safely thru that super hard liner !!
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I was amazed and impressed with the materials used on the crank, liner and valves of these engines, 10/10 Microcosm.
Carbide drills for PC board drilling are available in very small sizes (RS components, Mouser, Rapid etc.) and will make short work of this suprisingly hard material, and a dremel grind stone to take the burr off the inside after.
Kind regards
Ade
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Have you tried diamond-tipped drills? Small ones are pretty cheap.
I have purchased them from Kingsley North inc. lapidary supplies.
The bits cut through agate which is really hard stuff but I've never tried
them on metal. If it was soft metal they might clog but I think that
since your metal is very hard it might work. Remember, use a water bath
of some sort for cooling while drilling!
Good Luck,
Wayne
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Hi Len,..yep,...simple enough tool for the usual cylinder wall issues, but this little M90 engineering marvel is kicking my a@# longtime engine experiences !!...When you find a full floating piston pin happily stroking away within a Steel con rod bushing Without any retaining clips or buttons & freely bumping & riding the cylinder liner Without causing any scuffing damage...it somehow seems to work within that unbelievably hard, thin, .065" non-magnetic liner that i can't manage to get Any size drill hole thru yet.....maybe this aint yo average iron liner deal...i've punched holes in usual iron,aluminum maybe titanium even but my first encounter with "undrillium" metal ?? Help !
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Hi,
I have no experience with M90 but this is what I have used on oil holes in liners.
A file or burr tool may be need to knock off a larger burr to start.
Len.
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Has anyone drilled thru the cylinder sleeve liner to add a oiler hole ? So far, this simple anticipated 0.065" thick liner has resulted in 2 broken 1/16" drill bits & just laughed at my other hss titanium coated bits !! What i expected to be usual iron cylinder liner material seems to be a drill proof misadventure failure. Even if i manage to get an expensive carbide bit thur it, what would i use to file or grind off any ragged edge metal ? ...i really could use a functional piston oiler hole but don't want to risk ruining the cylinder sleeve in the process...Will a solid carbide drill bit in a hand drill motor get the job done & will normal steel file & grinding stones take the anticipated break-thru burr off ?