Check Your Spark Plugs!!
#1
Check Your Spark Plugs!!
well after 70k miles on my fit i blew a spark plug out of my engine head and destroyed a coil pack (and theyre not cheap) plug came out clean with the threads intact bought a new coil put a new plug in, and eveything was fine.... until tonight samething happened but coil was fine limped home on 3 cylinders to find out that the coil pack is melted and most likely the threads in cylinder head are gone. has anybody else had an issue like this?
#4
Yeah, but that doesn't explain how they would explode. I've never heard of such a thing.
#5
Sorry, when I wrote this thread I was exhausted. Both times, the spark plug was completely intact, but the first time this happened my guess is that the compression pushed the sparkplug out with such force that it ripped the coil pack off the bracket and destroyed the boot that sits on the spark plug
#6
Sounds more like a head problem to me. The spark plug hole wasn't drilled properly or the hole expanded over time. I would take it to Honda and see if they can help even if it's not in warranty because this was a machining problem.
#7
Blowing the same plug twice is most likely going to cost you a new head, sorry to say.
First time an insert might do the trick, but twice and there's nothing left to thread into.
Also, by driving it, that cylinder has taken a bath in raw fuel, not good for cylinder walls/rings.
A compression test will be needed to determine any damage.
Never heard of a Fit blowing plugs before.
First time an insert might do the trick, but twice and there's nothing left to thread into.
Also, by driving it, that cylinder has taken a bath in raw fuel, not good for cylinder walls/rings.
A compression test will be needed to determine any damage.
Never heard of a Fit blowing plugs before.
#8
the stock spark plugs or the ik22's?
#11
That's really amazing... I've never heard of something like this on an engine of this size. The only way I can see this happening is if the plug was cross-threaded several times into the head and inserted anyway. The threads would have had to been demolished beyond recognition because even several thread will hold a plug in where compression won't blow it out. Good luck on the repair. I've installed inserts into other engines of higher compression and they've always held okay.
#12
Yikes! I ruined my Subaru's engine because I didn't properly tighten a spark plug and it blew out of the head at an intersection. Once that happens, the threads are ruined and the spark plug will keep popping out until there are no threads left.
I had a mechanic heli-coil new threads. Then I made the mistake of changing the plug out later, loosened the heli-coil threads and really ruined it. The whole head was unusable. I ended up throwing in a used Japanese motor, instead.
I'm sorry to hear that man. I'd say have Honda heli-coil it. And if that doesn't work, plan to replace the head.
I had a mechanic heli-coil new threads. Then I made the mistake of changing the plug out later, loosened the heli-coil threads and really ruined it. The whole head was unusable. I ended up throwing in a used Japanese motor, instead.
I'm sorry to hear that man. I'd say have Honda heli-coil it. And if that doesn't work, plan to replace the head.
#13
I've never touched the plugs but my father said that they have to insert compressed air into the cylinder via the sparkplug hole? If this is true then honda north of danvers ma ruined the threads for the sparkplug I'm going to helicoil it on saturday probably pull the whole engine out to do it because access to the plugs is quite limited and since it is cylinder #4 it would be beneficial to do it that way ill keep you guys posted but can someone confirm that they do have to insert compressed air into the cylinder for the LMS Recall? Thank you
#14
Blowing air into the cylinder is an attempt to blow out and metal shavings resulting from the thread coil install - nothing related the the LSM recall. Some claim there's no need to do that, but it all depends on how much drilling and tapping you end up doing.
#15
This might save you the head, but it will have to be pulled to do the job properly.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
#16
This might save you the head, but it will have to be pulled to do the job properly.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
#17
This might save you the head, but it will have to be pulled to do the job properly.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
More common than you might think.
#18
How do you figure?
100psi in the chamber to keep the valves seated while they pop out the keepers and springs are not going to cause damage or strain the spark plug and threads, considering the compression of the piston alone without combustion will do twice that.
Or are you intimating the tech may have cross threaded the plug hole when he put the compressor fitting in? Cuz they are going to fight you tooth and nail on that one.
100psi in the chamber to keep the valves seated while they pop out the keepers and springs are not going to cause damage or strain the spark plug and threads, considering the compression of the piston alone without combustion will do twice that.
Or are you intimating the tech may have cross threaded the plug hole when he put the compressor fitting in? Cuz they are going to fight you tooth and nail on that one.
#19
Yea, since the plugs were never touched by me so since the only person to touch the spark plugs is the honda tech that did my recall I would believe that he cross threaded the plug threads its going to be a hard thing to prove so I just wanted some closure to this and would rather human error than a freak occurence