Epoxy. I like that! Why didn’t I think of that?
Just epoxy that bitch on there with a socket over the plug. Create a shorty or whatever you have to do so you are sure you can remove the old plug after you’ve glued it in place.
Had to replace leaking fuel sump strainer connector on my airplane. Bottom of tank. You get the water out of the tank this way. It was leaking.
Anyhow, 65 year old airplane. Of course the treads came out upon removing the old fitting. To fix properly have to remove tank and recover wing with new fabric, tape, and paint. We are talking about a $10,000 job. Epoxied that shit in there with thread tape and never spilled a drop.
Screw it and glue it
Worse than the expense was the time down. FTS !!! I want to go flying !!! It would take months to repair properly and “legally” but fcuk that siht !!! I want to go flying !!!
Screw it and glue it
You talk about not having money but you fix airplanes?
If you thought cars are expensive you haven’t seen planes yet. Planes are a money sink like boats.
Not only that any work done on a plane has to be carefully documented, even just removing one screw.
Despite how much airlines charge for tickets they barely break even, and a fuel price spike can send them into losses.
I’ll send you photos. I removed every nut, bolt, rivet, cable, every inch of fabric, everything from my personal airplane (corporate airplane) - put that siht together again, had it signed off by an inspector who worked for Gulfstream, lined that bithc up on the numbers and took off !!!
Yea airplanes are expensive as hell to do anything with, and usually only rich folks does anything with planes. Actually most middle income people (who still makes more money in a day than I do in a year) don’t own airplanes, they join flight clubs where they can timeshare aircraft so they don’t have to pay for its upkeep and all that.
I’d love to fly airplanes but I can’t even afford to ride in one, let alone own one.
You must be actually very stinking rich, or you found ways to externalize certain costs.
What’s worse is there is NO general aviation in Taiwan, so if assuming I am as rich as Terry guo I would have to leave Taiwan to learn how to fly. But such wealth can only come from exploitation of the working classes, not honest work.
I’m just stuck on this shit island.
Really glad I didn’t bring the airplane here. No where to land. Hillside? Mountain? River? Road? No where to land in emergency.
The other problem is how are you going to fly it across the pacific? Extended fuel tanks? mid air refueling by meeting with a KC120? You can see how big of a problem it already is…
Then you got Taiwan’s limit for airspace… basically military and commercial only, and general aviation is really really rare stuff, rarer than horses.
Hell I can’t even fly rockets here. I would love to though.
I figure if I’m going to go to prison for something, it would be for illegally flying a home made aircraft… Actually I remembered a news about some guy bringing a Robinson R20 to danshui and flying it, of course illegally.
Meanwhile, back on the ground, this guy used to be an idiot doing the Internyet mechanical equivalent of pulling-the-wings-off-flies to amuse the redneck masses
(“Can you run your engine with a sump full of water? Lets find out” -No. Lets not, because its a stupid and pointless thing to do)
but latterly seems he’s doing some apparently fairly valid tests. Still has a really irritating voice though
Here’s one on thread repair
In this ideal situation, the inserts, even the cheapo Chinesium one, all come out stronger than the fastening.
The goo’s…er…dont. And they aren’t being heated.
So I don’t much fancy epoxies chances, but I suppose one wouldn’t loose much by trying it before tapping it out and trying an insert.
Some of the thread inserts have a tang that you have to break off, which might challenge the rheological properties of shaving foam if one was doing it in a spark plug hole.
Unlike head chips, they’d be hardened steel, so a significant threat.
Didnt have any cylinders firing for more than a couple of seconds. Theory before was carburettor issue. Stripped carb (twice, second time to remove the RTV I unwisely but very cautiously put on the first time because of a suspected air leak, and then thought better of) to no apparent effect.
Has spark, though MAYBE not a very “strong” one.
Just before the plug cockup it was looking like the static timing might have been out, though how that would happen on a car parked for 4 months I couldn’t explain.
Because of concern over the effects of residual shaving foam in the cylinder?
Hmm…OK, I’ll add that to my list of concerns. It’ll be way, way down toward the bottom though.
I could squirtt some water in and turn the engine over some more to skoosh more of it out.
Or aftershave…
or vodka 
Metal chips in the cylinder can’t be good. My main concern though is it’s going to be tough for an inexperienced mechanic to use the same spark plug he cross-threaded the hole with to uncross-thread it.
Yeh, thats my concern too.
Though I might use a differnt spark plug, or the gizmo I just bought.
(Not sure about the “inexperienced” bit though. I’ve screwed up lots of stuff. Just havn’t screwed up THIS before.)
Is the thread for spark plugs proprietary? Is it possible to find a bolt of the same thread and use the bolt as a means to fix the damaged thread?
I can give you the location of the tooling shop near Taipei bridge if you want. They have almost everything you can imagine.
Yeh, I was thinking that might be a better option, in that it would minimise any risk of the thing breaking off in the plug hole.
I’d think that risk is fairly small though, provided one was cautious. One isn’t trying to actually tap a hole here, after all
Its kind of odd that I havn’t seen it suggested ont nyet, despite poking around a lot and seeing multiple instances of the modded spark plug suggested.
Orientation of a bolt in a socket wont be as easy, but stacking a few extra nuts on it should help.
As above, they are 14mm X 1.25mm thread pitch, metric, (metric even on American cars, apparently).
I’ll probably try my new gizmo first though, and that may well close off other non-thread insert options.
That said, can’t find my plug socket, so I’d better go shopping, since I’d guess all the tool emporia will be sweeping tombs for the next few days
Keep me posted. If you absolutely can’t find any bolt or tap that works, I got a lathe and I can make you a bolt out of chrome moly steel and heat treat it. Though I have to change a bunch of gears to thread metric threads, because it has inch leadscrew for a lathe made in taiwan.
Edit I did find m14 x 1.25 taps on Google so that shop should have it cheap.