spark plug didnt want to come out
#21
10-24-2011, 04:20 PM
pulled plugs when engine was slightly warm. yes, already installed new plug (with anti-seize) torqued to spec (18 ft lbs? --dont have manual in front of me right now). seemed to tighten right down. maybe i'll just leave well enough alone and not run a tap down
#22
10-24-2011, 05:20 PM
Elite HDF Member
changed my wife's spark plugs in 2010 xl low. front cylinder came right out, the rear was a bastard to get out. once out i could see the reason, but have no idea what would cause something like that--looks like the threads have been welded together. I guess waiting 2 years to change plugs was too long. any ideas what causes this?
J.B. Weld and antiseize do not interchange.
#23
10-24-2011, 05:29 PM
Seasoned HDF Member
Looks like you got it all figured out but you did ask what caused this and I had a thought. Although this probably isnt the case but never try to remove a hot spark plug from an aluminum head. The head cools faster than the plug and the plug has not cooled and contracted. This will also cause the plug to pull threads especially if no anti seize is used. Just some trivial information. Glad you got away cheep this time!
#24
10-24-2011, 06:29 PM
#25
10-24-2011, 07:08 PM
Looks like you got it all figured out but you did ask what caused this and I had a thought. Although this probably isnt the case but never try to remove a hot spark plug from an aluminum head. The head cools faster than the plug and the plug has not cooled and contracted. This will also cause the plug to pull threads especially if no anti seize is used. Just some trivial information. Glad you got away cheep this time!
#26
10-24-2011, 09:37 PM
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I wouldn't if it were in any of my car motors. I'd pull the head and do it the RIGHT way.
#27
10-25-2011, 10:00 PM
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#28
10-25-2011, 10:06 PM
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Yup. I had to do this in my mustang. Them smart ford engineers only had 3 threads holding the plugs in. Advance the timing a bit,high octane performance tune and a 125 hp shot of nitrous and BANG. shot out so hard it dented my hood
#29
10-26-2011, 06:29 AM
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Me too!
My bikes still under warranty till June. If i dont pull my plug myself today, then it will be done in the spring when i go in for service and a look over before warranty ends! Dang man!
#30
10-26-2011, 06:31 AM
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If they torqued up to spec , i bet they are fine. I wouldnt think your running nitrous or anything like that , right? Usally in my everyday experience at the gargage i work at. If its too bad stripped then it wont usually torque down. It may tigthten but you can still turn it. I know you guys know! Sorry!
Last edited by 2010IRON883; 10-26-2011 at 06:33 AM.