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PB Blaster and stuck spark plug, fixed #4760355
05/17/18 08:43 PM
05/17/18 08:43 PM
Joined: May 2005
Posts: 532
Idaho
sprite1741 Offline OP
sprite1741  Offline OP

Joined: May 2005
Posts: 532
Idaho
Had a stuck plug on number 2 on the 2.2 aluminum head. I knew it was not over torqued since I installed it with never seize and I just snug them up. Not sure what happened but it would unscrew about a quarter a turn and stop. Hit it with PB blaster and slowly worked back and forth with added blaster. Took about an hour letting it sit, working it again and again. It came out and the threads are fine. Just an FYI for anyone this happens to. Don't panic and think the worse. Cold engine, no heat. All the others were fine.


2005 Grand Prix GXP 5.3L Supertech Synthetic Dexos 5w30 Fram Ultra 3506
1986 Dodge Lancer 2.2L Turbo, Supertech Synthetic 10w30 Fram Ultra 3614
Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760380
05/17/18 08:57 PM
05/17/18 08:57 PM
Joined: Jun 2005
Posts: 5,324
North Texas
ARB1977 Offline
ARB1977  Offline

Joined: Jun 2005
Posts: 5,324
North Texas
Sweet. I always think the worse. Glad it worked out for you.


2015 Tacoma 4.0L 60K (as of 02/23/18)
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2018 CRV 1.5L (as of 05/11/18)
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Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760387
05/17/18 09:01 PM
05/17/18 09:01 PM
Joined: May 2010
Posts: 9,851
out there
spasm3 Offline
spasm3  Offline

Joined: May 2010
Posts: 9,851
out there
Back and forth is the key. Probably carbon on the exposed threads. Back and forth knocks the carbon loose a bit at a time and avoids stripping the threads.

Good job!


13 elantra 75k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
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Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760391
05/17/18 09:06 PM
05/17/18 09:06 PM
Joined: Jan 2013
Posts: 2,496
Texas
WyrTwister Offline
WyrTwister  Offline

Joined: Jan 2013
Posts: 2,496
Texas
That makes sense .

Congrats on the win ! :-)


Wyr
God bless
Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760400
05/17/18 09:12 PM
05/17/18 09:12 PM
Joined: Dec 2006
Posts: 1,024
midwest
JamesBond Online content
JamesBond  Online Content

Joined: Dec 2006
Posts: 1,024
midwest
Did the pb-blaster go down past the plug? Good job getting it out.

Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760415
05/17/18 09:26 PM
05/17/18 09:26 PM
Joined: Jun 2003
Posts: 18,411
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 18,411
Deplorable in apple valley, ca
What brand was the plug?


02 Wrangler carlube 5w30
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Z400 castrol T 10w40
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Re: PB Blaster and stuck spark plug, fixed [Re: JamesBond] #4760442
05/17/18 10:03 PM
05/17/18 10:03 PM
Joined: May 2005
Posts: 532
Idaho
sprite1741 Offline OP
sprite1741  Offline OP

Joined: May 2005
Posts: 532
Idaho
Originally Posted By: JamesBond
Did the pb-blaster go down past the plug? Good job getting it out.

Yes it did, the top of the piston was very wet. I used a lot of blaster. I put a piece of paper towel taped to a dowel and soaked it up. Wanted to make sure it was PB and not coolant.


2005 Grand Prix GXP 5.3L Supertech Synthetic Dexos 5w30 Fram Ultra 3506
1986 Dodge Lancer 2.2L Turbo, Supertech Synthetic 10w30 Fram Ultra 3614
Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760501
05/18/18 12:05 AM
05/18/18 12:05 AM
Joined: Jun 2012
Posts: 1,822
USA
oldhp Offline
oldhp  Offline

Joined: Jun 2012
Posts: 1,822
USA
Or let the engine cool over night. Next morning start the engine and pour MMO into TB, PCV etc. Shut it off and let it sit. Now the MMO, PB-Blaster etc is on the inside threads of the plug soaking the carbon loose.


2018 RAM 1500 3.6/8 speed.
2017 Jeep Sahara Unlimited 3.6
"U kan't fixe it......if'n it ain't broke."
Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760680
05/18/18 08:16 AM
05/18/18 08:16 AM
Joined: Sep 2004
Posts: 8,009
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,009
Marshfield , MA
The back and forth in increasing arcs is SOP for any stuck bolt. The motion forces the lube further down the threads.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: PB Blaster and stuck spark plug, fixed [Re: andyd] #4760731
05/18/18 08:50 AM
05/18/18 08:50 AM
Joined: May 2005
Posts: 532
Idaho
sprite1741 Offline OP
sprite1741  Offline OP

Joined: May 2005
Posts: 532
Idaho
Originally Posted By: andyd
The back and forth in increasing arcs is SOP for any stuck bolt. The motion forces the lube further down the threads.

Yes, I took it slow and didn't try to force it. 32 year old aluminum heads and steel plug. First time this ever happened. I had those plugs out 3 years ago. The plug didn't look fouled so still a mystery why just one, but it's an old engine. The threads were really gunked up, black carbon and anti-seize. Maybe I used too much. Anyway I cleaned up everything and installed new plugs, wires, cap and rotor. All good.


2005 Grand Prix GXP 5.3L Supertech Synthetic Dexos 5w30 Fram Ultra 3506
1986 Dodge Lancer 2.2L Turbo, Supertech Synthetic 10w30 Fram Ultra 3614
Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760744
05/18/18 08:59 AM
05/18/18 08:59 AM
Joined: Aug 2010
Posts: 6,229
Champlain/Hudson Valley
Kira Offline
Kira  Offline

Joined: Aug 2010
Posts: 6,229
Champlain/Hudson Valley
As stated, lube and go back and forth as necessary. Be kind to your machine and forget rushing any "nothing job".

To oldhp: If your process works, GREAT. It seemed a little involved to me as I don't think the MMO would cooperate so effectively.
My guess is that it'd just burn off like fuel:air mixture would.

Cheers,

Re: PB Blaster and stuck spark plug, fixed [Re: sprite1741] #4760763
05/18/18 09:08 AM
05/18/18 09:08 AM
Joined: Sep 2003
Posts: 5,834
Waterloo, ON
Bluestream Offline
Bluestream  Offline

Joined: Sep 2003
Posts: 5,834
Waterloo, ON

Last edited by Bluestream; 05/18/18 09:08 AM.

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