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Discussion Starter · #1 ·
Hi guys, I'm new to the forums and I ran into a problem with my 1991 Honda CRX Si (D16A6) spark plugs. I am trying to replace them and I ran into a problem with one of the spark plugs, it will not come out!!! I removed the valve cover to see if it would help me out better but I was wrong. I was wondering if anybody knows another way to take the little bugger out. Thank you for your time.

-= Justin =-
 

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Are you using a spark plug socket? Are you unable to unscrew it? Like it's frozen in there?
 

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i hate to have to say it but if it absolutely will not come out you might have to take the head to a machine shop. and if it comes out with a lot force the threads may be damaged. either way a machine shop will have to fix it.

Do you know what kind of plugs they are? Ive heard of a problem with champion plugs over expanding when heated basically welding itself to the head. I dont know if a penetrating lube like pb blaster would work, even so you probably wouldnt want to use it there anyway and have it get inside the engine.
 

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Discussion Starter · #5 ·
No...I'm not sure what plugs are in it right now...I just bought 4 new Bosch Platinum+4 spark plugs and now I have this problem :? .
 

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Is the engine cold when you are trying to remove the spark plugs? I know it's a simple thing, but you're supposed to wait for the engine to be cold before removing them. Just trying to cover all bases here.
 

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I would spray a litttle pb blaster on the plug and let it sit for a day. . .. then spray it agian and gently try it. . . . . .failing in that. . .. .i would start the vehicle up.... by running it. . . . i know you are suposed to remove them cold but obviously this is not working for you . . . get the engine warm. . . . . the aluminum head will heatup and expand faster than the steel threads of the spark plug. .. .and you should be able to crack it loose...
then if you wanted you could wait till it was cool agian to take it out. . . ]

good luck . . .. .failing in this. .. .you are looking at taking the cylinder head off. .

Chris
 

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Discussion Starter · #9 ·
Thank you SO much toxiclows. I greatly appreciate this help. I'll give that a shot and I thank you again for helping me out. Have a nice day everyone!

-= Justin =-
 

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Also if you get it to start moving work it back and forth little by little while spraying lube/penetrant in there every so often.
I've saved a few heads by doing that.

Oh and I'd return the bosch +4's and get some regular NGK's
Bosch seem to suck for our cars, less power and gas milage.
 

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yeah great info shorte once its cracked the penetrant can get in there alot better.... working it back and forth will help displace and dissolve the corrosion.... give it a shot and work it slow. . . . if its not coming out b hand then you are going to break off the plug. . .
personally i would rather run around with one bad plug than to have it brake off and only have 3 cyls.. . . if you think its going o break then stop untill you are ready tro yank the head and do it ..
Chris
 

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Just caught Shorts's last part. . . .yeah i ran Bosch in my Porsche they seem fine for german cars... . . vw porsche audi etc.... but hondas like there NGK's not sure why.. . it just seems like certian cars get a certian plug. . .and thats just the way it is

ford autolite
Gm ac delco
amc chrysler ( and your push mower ) Champion
Jap cars NGK NGK-r ( type R hahaa )
Germans Bosch

etc
etc
etc

go figure.. . . .I didnt make the rule . . .. it does however seem to work out well.. . . .

dont even get me started on the 10 dollar a plug plugs...

stock NGK's will serve you just fine..
 

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Discussion Starter · #14 ·
Oh...Any recommendations on spark plug wires? Should I match it up with the NGK spark plug wire set? Thanks.

-= Justin =-
 

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marine said:
I am unable to unscrew it, yes. I am using a 5/8 spark plug socket. Any ideas?
are you saying that the stuck plug is spinning? just not coming out?

as far as plug wires i use either the honda wires or bosch wires. on my crx i have the bosch wires w/ no problems good fit, but on my 00 civic one wire is like 3 or 4 inches too long. dont think its a big problem but im stickin to oem on that car.
 

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Discussion Starter · #16 ·
It's not spinning, the wrench wont go over the spark plug actually. It's not seized or anything like that. The wrench works on the other 3 spark plugs but just not this one.

-= Justin =-
 

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Discussion Starter · #18 ·
Ok..I'll try that real quick right now. I'll repost if I have luck/noluck, thanks!

-= Justin =-
 

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Discussion Starter · #19 ·
No it won't fit down the hole...I've decided that I will take the head cylinder out and flip it upside down so I can get them out that way.

-= Justin =-
 

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marine said:
No it won't fit down the hole...I've decided that I will take the head cylinder out and flip it upside down so I can get them out that way.
Any chance there is still a peice of the plug wire on top of the plug?
I've had them do that, the metal part comes off the wire and stays on the plug keeping the socket from going all the waay down onto it.
 
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