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NGK Spark plugs
Topic Started: Jan 19 2010, 07:50 AM (1,879 Views)
rstenicc
Advanced Member
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my metro died yesterday cranks wont start. when i pulled plugs found they were NGK. They where black from running rich. the center electrod was was a point not squared off like normal. is this the way NGK plugs are.
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starscream5000
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Got 70 MPG?

No, they are normal looking just like any other plug.
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JAMES
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:news I checked out the ,NGK website and found they offer a plug called an LRIDIUM LX, with an Lridium electrode tip .It has a small skinny tip like yours and they sell for 7.99 each that maybe what you have. ^o)
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rstenicc
Advanced Member
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the center electrope starts out wide like normal the tapers to a point. I will look on there web site and see if it similar. thanks guys
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rstenicc
Advanced Member
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the iridium plugs they show the tip is differnt then mine. well i was going to change plugs any who so i will just get some regular NGK's
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Bad Bent
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Facetious Educated Donkey

Application chart for a 1991.
http://www.sparkplugs.com/results
You can change that on the Home page.

If you 'mouse over' the plugs the picture change :D :gamerz

So we know why it was running rich? :dunno
Edited by Bad Bent, Jan 19 2010, 07:24 PM.
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iamgeo
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Big League

Does the plug have the name and part number on it?
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Spock
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Live Long and Prosper.

So what about the no start condition? pull the dist cap and see if the rotor is turning when you crank it. If no spin, timing belt is your culprit. If it's spinning when you crank the engine, report back. But definetly get the spark pluggs figured out.
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rstenicc
Advanced Member
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put new plugs in it still wont start trys to but just wont kick over. I am going to pour a little oil in the cylinders because i think the got washed with fuel. also going to make sure timing belt has not jumped. need to remove cover any way to replace waterpump. this all started after i did 2/3 of the seafoam treatment. just did oil and fuel have not done intake yet. poured 1/3 in oil , 1/3 in gas and drove it like 135 miles. died out at my apt.
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bogs
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Duct tape heals all wounds

Nice sparkplug chart BB :thumb Odd set of timing, Seafoaming then not running. Wonder if something large got knocked loose :hmm
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Bad Bent
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Facetious Educated Donkey

Thanks bogs.

So the distributor was recently removed, I wonder if the coil wire has come loose. If you reworked your headlights maybe a wire/ground has become loose.
You are getting fuel, it's flooding, if you floor the pedal does it start? Then we ask is it flooding because of a bad MAP, TPS or maybe TB coolant hoses? But the last things I did to the engine and things that make it run rich are what I'd test. :hmm
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rstenicc
Advanced Member
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nope never pulled dizzy as it died before i could do the seal. I am thinking i might just pull motor and rebuild as the car body is still in real good condition. Just will be a slow rebuild as funds are low. This way i can do some other work to engine such as cam, shaving head, etc. But will see what is the problem first. i am going to do a compression test then leak down and see what i got.
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rstenicc
Advanced Member
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well did compression test found #2 at 80lbs put oil in cylinder went up to 83Lbs rotated engine over so valves were closed put som compressed air in cylinder air leaking thru intake. so i have a burnt or bent valve. so i will start to take head off and rebuild the head. Or does anybody have a good used head laying around for cheap
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Nick
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Jack Of All Trades Master Of None

:news what if any specific size of sparkplug do we use on the stock 4 clyinder
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