ausmini :: View topic - WTF NGK spark plug

he also said my dash pot oil is to thick ( i was told to use engine oil)

he had some of his grinding gear ( really expensive oil) he used that, he said it is very close to sewing machine oil or su oil.

told me to buy some sewing machine oil or su oil though.

so happy days

yeh good idea. kirby ill hit them up..

might get some spark plugs free out of it

was pretty upset but i was stressing over nothing it seems.

just rotten luck

Thick oil (like motor oil) makes it rich, not lean.
ATF generally works OK and is easy to find.

I thought that the thick oil would have prevented the needle from rising quickly

The needle would drop too slowly....too rich, once the vacuum steadied?

MG Rocket wrote:

I thought that the thick oil would have prevented the needle from rising quickly

Correct, when means a lower volume of air flowing over the bridge but in the face of higher vaccum, at higher velocity therefore drawing more fuel. Hence richer

Author:	NG [ Fri Jan 28, 2011 5:01 pm ]
Post subject:	WTF NGK spark plug
Just put a NGK spark plug in my car twisted it By hand as you do felt nice. Then proceded to do it up and it felt to tight. The thing has a lip of weld in the thread And now my spark plug won't do up, it has threaded The top of the thread only! I tried another new spark plug with a good thread , same deal. Stuck at autobarn while dads cylinder head Mate is gonna jet down. I did not do it up far at all, it's just the top Of the thread. I hope he can clean it up??? Autobarn said NGK will pay if something is wrong, such a pain! Im pretty Pissed off. I'll make sure I check the threads from now on then.

Author:	Fiji [ Fri Jan 28, 2011 5:40 pm ]
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hope you havent stripped the thread that would suk

Author:	MiniDna [ Fri Jan 28, 2011 6:24 pm ]
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Good luck with that NG. and let us know what is going on

Author:	Mick [ Fri Jan 28, 2011 6:25 pm ]
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Perhaps its only ruined where the thread takes up. Run a hardened sparp point (like an awl) from a good spot on the thread and screw it backwards up the thread till you feel or spot the section which causes the thread to cross. Then pick it away or file it out carefully. You can rely on the remaining threads to take the load. Spark plugs will seal just fine even ifg they are little more than finger tight anyway. Anything more is good for amti rattle only, so you don't need much. If it's trickier than that, for years I have made what's called an "Emergency Tap" to get me out of a bind. Its an old trick, and is pretty well known. Take an old spark plug, and taper the first half dozen threads by rolling it between your thumb and index finger while holding it against a bench grinder or a linisher if you can find one. Then, cut a groove with a hacksaw along the thread to a shallow depth. The taper will allow the thread to pick up on the remaining good threads, and the groove will allow swarf to be removed. It works exactly as a real tap would, the difference is that it will wear out after a few uses (although they tend to last years in my collection, they come out once in a while). I hope it helps. Here's an example made for a 3/8 UNF bolt. This one I used to create a helicoil thread for a 5/16th UNF insert. 5/16th and 3/8th have the same TPI as opposed to every other UNF insert.

Author:	NG [ Fri Jan 28, 2011 7:49 pm ]
Post subject:
mic at northside cylinder heads fixed it up for me! legend he said it was nothing, he said i was lucky i did not do it up much at all or would have been head off. towed it back to the shop 40mins later fixed! but was surprised with the plug and reckons it happens now & then as well. he use to own a original LS so he knows mini's loves them! even gave my car a little tune as it was running pretty rich. not missing a beat now he also said my dash pot oil is to thick ( i was told to use engine oil) he had some of his grinding gear ( really expensive oil) he used that, he said it is very close to sewing machine oil or su oil. told me to buy some sewing machine oil or su oil though. so happy days

ausmini https://www.ausmini.com/forums/

WTF NGK spark plug https://www.ausmini.com/forums/viewtopic.php?f=2&t=68541	Page 1 of 2

Author:	Mick [ Fri Jan 28, 2011 7:52 pm ]
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Happy days indeed. Well done on the fix.

Author:	kirby [ Fri Jan 28, 2011 8:16 pm ]
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Probably not woth pursuing now but ngk are very good with their quality control and would have sorted you out if the repair was exy. They have recalled entire lines for minor faults before.

Author:	NG [ Fri Jan 28, 2011 8:29 pm ]
Post subject:
yeh good idea. kirby ill hit them up.. might get some spark plugs free out of it was pretty upset but i was stressing over nothing it seems. just rotten luck

Author:	MG Rocket [ Fri Jan 28, 2011 8:36 pm ]
Post subject:
NG wrote: he also said my dash pot oil is to thick ( i was told to use engine oil) he had some of his grinding gear ( really expensive oil) he used that, he said it is very close to sewing machine oil or su oil. told me to buy some sewing machine oil or su oil though. so happy days When you tramped your foot it would have run pretty lean.....low power. It must feel much more responsive now.

Author:	drmini in aust [ Fri Jan 28, 2011 8:38 pm ]
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Thick oil (like motor oil) makes it rich, not lean. ATF generally works OK and is easy to find.

Author:	NG [ Fri Jan 28, 2011 8:49 pm ]
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yeh i was just using what i put in my engine 20-50 engine oil. it is to thick & the dash pot is not returning fast enough. nah mg it had power but it felt slower it's much more responsive now. he said it needs a good tune, he cleaned it up a bit, it was running to rich booked in for tomorrow though.

Author:	sgc [ Fri Jan 28, 2011 8:56 pm ]
Post subject:
NG wrote: yeh good idea. kirby ill hit them up.. might get some spark plugs free out of it was pretty upset but i was stressing over nothing it seems. just rotten luck At least let them know they have at least one faulty product out there and their QA guys need a kickedy split

Author:	MG Rocket [ Fri Jan 28, 2011 8:56 pm ]
Post subject:
drmini in aust wrote: Thick oil (like motor oil) makes it rich, not lean. ATF generally works OK and is easy to find. I thought that the thick oil would have prevented the needle from rising quickly when you planted your foot...less response. Have I got that backwards? The needle would drop too slowly....too rich, once the vacuum steadied? I use ATF too.

Author:	sgc [ Fri Jan 28, 2011 8:59 pm ]
Post subject:
MG Rocket wrote: I thought that the thick oil would have prevented the needle from rising quickly Correct, which means a lower volume of air flowing over the bridge but in the face of higher vaccum, at higher velocity therefore drawing more fuel. Hence richer MG Rocket wrote: The needle would drop too slowly....too rich, once the vacuum steadied? The piston damper is asymmetrical -- it will fall faster than it rises.

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Author:	MG Rocket [ Fri Jan 28, 2011 9:02 pm ]
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sgc wrote: MG Rocket wrote: I thought that the thick oil would have prevented the needle from rising quickly Correct, when means a lower volume of air flowing over the bridge but in the face of higher vaccum, at higher velocity therefore drawing more fuel. Hence richer AH huh! Thanks for clarifying it for me.