stripped #6 sparkplug any suggestions?
#1
stripped #6 sparkplug any suggestions?
so the othe day i decided to change my sparkplugs because my truck runs rough on start up fpr about iit will miss then run regularly.
i have a 1992 4runner 3.slow with 208,000 on it.
so while puling the plugs on the driver side, plugs 2&4 came out fine the plugs looked fine no corroding at all. (the plugs were changedabout a year ago when i bought the truck.) while taking off the wire boots i had 2 rip completely off
called up the local part store and sent my mom to pick up new wires.
moving on to the #6 cylinder it would not budge!
in a lapse of my greater judgement i took a 1/2 inch breaker bar to it and the threads got trashed. pulled the plug and the end was badly corroded compared to the other two the last 3 threads have aluminum on there really good it appears that it was melted on?
i got through and worked on the other side and #1 sparkplug is not budging i left it as it was, 3&5 came off fine no problems. so i getting the 14X1.25 tap tomorrow and i thinkk im gonna try and re tap that hole. my friends dad told me he fixed that before and to do it he pulled the head and did a helicoil in there. so thats my next step if the tap doesnt work. i guess. while taking the top end off is there enything else i should change besides the HG?
i have a 1992 4runner 3.slow with 208,000 on it.
so while puling the plugs on the driver side, plugs 2&4 came out fine the plugs looked fine no corroding at all. (the plugs were changedabout a year ago when i bought the truck.) while taking off the wire boots i had 2 rip completely off
called up the local part store and sent my mom to pick up new wires.
moving on to the #6 cylinder it would not budge!
in a lapse of my greater judgement i took a 1/2 inch breaker bar to it and the threads got trashed. pulled the plug and the end was badly corroded compared to the other two the last 3 threads have aluminum on there really good it appears that it was melted on?
i got through and worked on the other side and #1 sparkplug is not budging i left it as it was, 3&5 came off fine no problems. so i getting the 14X1.25 tap tomorrow and i thinkk im gonna try and re tap that hole. my friends dad told me he fixed that before and to do it he pulled the head and did a helicoil in there. so thats my next step if the tap doesnt work. i guess. while taking the top end off is there enything else i should change besides the HG?
#2
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#6 does not sound normal. Do a compression check while you have the plugs out. PB Blaster the #1 spark plug & let it set for a couple of hours & try again. It's going to have to come out eventually....
Last edited by TNRabbit; 11-29-2011 at 04:32 AM.
#3
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i did the same thing but it was a long time ago i think i just retaped it but for some reason i remember helicoiling it but i would say try the tap then see if it works and if not u will have to heil coil it!
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And start spraying / soaking the exhaust manifold bolts with PBlaster now, as they are probably rusted on good.
Last edited by 93toyrunner2; 11-29-2011 at 04:53 AM. Reason: add on
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[QUOTE=808 4 runner;51827179]so i getting the 14X1.25 tap tomorrow /QUOTE]
Don't use a tap! It will just blow out down the road. Ask me how I know
Can you start one of the other old spark plugs? Even just a few threads? If yes then go and get a thread CHASER. It should just be able to restore the old threads in the head. If you cut new ones with a tap they will be to weak.
If that doesn't work then it sounds like you need a new head. I've had helicoils and time serts blow out(Currently putting a new head on my 22RE because the timesert blew apart)
Good luck. Hope I helped
Don't use a tap! It will just blow out down the road. Ask me how I know
Can you start one of the other old spark plugs? Even just a few threads? If yes then go and get a thread CHASER. It should just be able to restore the old threads in the head. If you cut new ones with a tap they will be to weak.
If that doesn't work then it sounds like you need a new head. I've had helicoils and time serts blow out(Currently putting a new head on my 22RE because the timesert blew apart)
Good luck. Hope I helped
#7
Chased the threads out today, and after doing that I left the plug out, hooked up my batt and turned it over, it turned over once and stopped the battery was weak, so I ran to the back & hooked up my second battery, now when I crank it the starter just clicks?
It won't turn over,
Does anyone know anything that could cause this?
It won't turn over,
Does anyone know anything that could cause this?
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#8
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The bendix may be stuck out... put her in gear and give it a shove to rock the truck... you may her a click as the bendix drops back in... it should start normally if that was the issue...
#9
i havent read what any1 else said but what you say it sounds like #6 wasnt replaced they couldnt get it out so they letf it and i would helicoil but let a pro do it. can cause serious damage.
#10
ok so now your problem is wont start take and turn the engine over by hand. you may have to man up on it but if you cant you dropped something down into the head, so then pull the head and check the damage.
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Chased the threads out today, and after doing that I left the plug out, hooked up my batt and turned it over, it turned over once and stopped the battery was weak, so I ran to the back & hooked up my second battery, now when I crank it the starter just clicks?
It won't turn over,
Does anyone know anything that could cause this?
It won't turn over,
Does anyone know anything that could cause this?
In a totally unrelated event, I broke a valve cover bolt today... right on the driver's side rear corner above #6.
#12
Tried again today & nothing it won't turn over, tried jumping it and it has more than enough in the battery but all the starter does is click once and nothing! Any other suggestions?
#13
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talk about a stroke of bad luck! i would pull the head. im sorry.
when i pulled an exhaust man. stud, my friend told me to timesert it. he says he uses them on plugs for bikes and loves them. i did a helicoil kit from napa and it holds torque like a champ.
seeing as to how your repair will be subject to DIRECT air pressure, i would say timesert. they have better resistance to leaks by design. best option short of, imo,. . . . .
welding. however, i weld for a living, ferrous and non-ferrous, and typically shy away from cast, aluminum, critical, motor parts. due to factors potentialy including, alloy and heat treatment identification, the amount of crud embedded in the aluminum, and warpage.
find your local machine/welding shop with the oldest man running it. ask him what he thinks, if he says do an insert, do it yourself. if he says he can weld it, ask about the factors i listed above. seriously. if he gives strait, logical answers, and a fair price, do it. if he says he will have to re-deck it after welding and cutting the new hole, ask what it will do to your compression ratio. GOOD LUCK!
whats a bendix?
sorry 'bout the essay
when i pulled an exhaust man. stud, my friend told me to timesert it. he says he uses them on plugs for bikes and loves them. i did a helicoil kit from napa and it holds torque like a champ.
seeing as to how your repair will be subject to DIRECT air pressure, i would say timesert. they have better resistance to leaks by design. best option short of, imo,. . . . .
welding. however, i weld for a living, ferrous and non-ferrous, and typically shy away from cast, aluminum, critical, motor parts. due to factors potentialy including, alloy and heat treatment identification, the amount of crud embedded in the aluminum, and warpage.
find your local machine/welding shop with the oldest man running it. ask him what he thinks, if he says do an insert, do it yourself. if he says he can weld it, ask about the factors i listed above. seriously. if he gives strait, logical answers, and a fair price, do it. if he says he will have to re-deck it after welding and cutting the new hole, ask what it will do to your compression ratio. GOOD LUCK!
whats a bendix?
sorry 'bout the essay
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That's another way to get the bendix to drop back in place if that's the problem... this way is better if you have an auto trans. [my way works better with manny trannys and keeps you clean when your dressed for work/night out]. lol
#16
http://www.amazon.com/Powerbuilt-640...2870253&sr=1-2
A little late I know, but this tool might make your life a little easier... I did the same thing to one of my SP threads and thought someone should make this tool, but couldn't find one. After I pulled my heads and heli-coiled my threads (which worked well for me btw) I found a similar tool to this, but was 140$ or something ridiculous. Apparently you can find them cheap now.
It expands after being inserted through the spark plug hole to chase the threads from the mint bottom threads back up through the damaged top threads. I've never tried it, but i cant see why it wouldn't work. good luck.
A little late I know, but this tool might make your life a little easier... I did the same thing to one of my SP threads and thought someone should make this tool, but couldn't find one. After I pulled my heads and heli-coiled my threads (which worked well for me btw) I found a similar tool to this, but was 140$ or something ridiculous. Apparently you can find them cheap now.
It expands after being inserted through the spark plug hole to chase the threads from the mint bottom threads back up through the damaged top threads. I've never tried it, but i cant see why it wouldn't work. good luck.
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