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Topic: spark plug stuck (Read 1045 times) |
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solarpanel
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spark plug stuck
« on: Oct 19th, 2005, 7:00pm » |
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any special tools needed to remove the head of 24v as had tuning man round today and the plug in no 6 is stuck fast ,so i will have to remove head to get it fixed he read for codes and found one telling him that the right bank was running rich as the plug is not firing.
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bertie
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before you go down the drastic route.......buy some diesel and pour it down the spark plug and let it soak over night........if that doesn't work, pour some diesel in a pot and heat it up.....hot...then pour it down......this should release the threads in the head against the spark plug.......
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martin_rowe
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Re: spark plug stuck
« Reply #2 on: Oct 20th, 2005, 8:22am » |
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use a bigger bar at the worst it will break & you still have to get the head off, at best it will come out, bigger question is why is it so tight, did it move at all, if so then may be corroded on the end, signs of coolant ingress, could also try with the engine hot, alluminium expands. exhaust all possabilities befor head off job, thats a bigie.
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Rally Drivers Do It Sideways
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howiedintheplace
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Based near Evesham
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Re: spark plug stuck
« Reply #3 on: Oct 20th, 2005, 9:19am » |
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As said the last thing you want to do is take the head off. 
Do as said as it would be harder to remove it anyway if you took the head off 
If by some chance the plug breaks up & falls into the cylinder then you might consider such a drastic action 
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Dave
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solarpanel
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Re: spark plug stuck
« Reply #4 on: Oct 20th, 2005, 9:38pm » |
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hi had ago getting plug out with torque bar and all it did was to slip round on plug,so will get better socket on it and give it THE BIGUN if it snaps so be it,anyway it sounds as if you are all afraid to pull the heads off a cossie.with all the help and knowledge on this site i managed to rewire a large part of the loom pull both fuseboxes to bits and refit them.plus djwerks got some heads if it all goes t*ts up.
solarpanel
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howiedintheplace
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Based near Evesham
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Re: spark plug stuck
« Reply #5 on: Oct 20th, 2005, 10:47pm » |
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Point is solarpanel it will be harder for you to get the plug out if you took the head off.
Socket is slipping round, oh dear you might be in trouble, give it your best shot, would be worth buying a new good quality socket just for the job as it will save you money, remember to spray some WD40 in the hole & let it soak. It would also be worth letting the engine run & warm up then try to undo it as it cools.
If you have to take the head off you will understand why we say it is a last resort mate
Good Luck.
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Dave
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solarpanel
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Re: spark plug stuck
« Reply #7 on: Oct 21st, 2005, 7:55pm » |
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nice picture will look to see if the local toolmart has anything like it.english not bad.
solarpanel
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solarpanel
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Re: spark plug stuck
« Reply #8 on: Oct 21st, 2005, 8:03pm » |
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hi howiedintheplace,if i can not get the plug out and have to take the head of i would take it to the local engineers and get them to drill it out the helicoil the head,because my lad has now taken a motor bike head with a snapped off plug and thats what he said would need to be done to that ,and he could do the cossie head also
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solarpanel
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Re: spark plug stuck
« Reply #9 on: Oct 23rd, 2005, 3:30pm » |
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ho hum its off with the cossie head..........
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Snoopy
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Re: spark plug stuck
« Reply #10 on: Oct 23rd, 2005, 4:36pm » |
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Try using an air hammer with the correct socket on it , rather than just brute force.... It requires a mechanical shock to break the seal, could even use an impact wrench.... .
Thats what I would try before taking the head off.
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brewer
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Re: spark plug stuck
« Reply #11 on: Oct 25th, 2005, 11:40am » |
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Often a seized thread can be loosened by turning the socket spanner in a tightening direction.Also , as already mentioned,a sharp jerk is better than smooth pressure.
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Baz
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S Reg. 1998 24v Cosworth S2.9 COS (Deceased)
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Re: spark plug stuck
« Reply #12 on: Oct 25th, 2005, 4:55pm » |
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Plenty of them on here brewer!!
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Highlander
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Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: spark plug stuck
« Reply #13 on: Oct 25th, 2005, 5:04pm » |
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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solarpanel
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I love YaBB 1G - SP1!
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Re: spark plug stuck
« Reply #14 on: Jan 3rd, 2006, 1:04pm » |
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at last i had time to play with this problem,took off the inlet and rocker cover etc,snapped off the top of the plug so i could hammer on a 15mm normal multi fit socket then spent 45mins back and forth and finally it came out.luckily the thread was still good and in went the new plug,refitted everything and fitted battery,now this car has stood for atleast 3 months plus its done 162k[no wear on cam] turned key and its away no rattle from chains, now its reset its self its running great and boy does it fly.reason for all this was the car misfired and ran lumpy having got plug out it looked ok until i held the plug up the right way the centre electrod covering fell down to touch the hook part resulting in no gap.thanks for all the help gents.
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Dave
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Tourmallard 24v (ex-owner)
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Re: spark plug stuck
« Reply #15 on: Jan 3rd, 2006, 1:36pm » |
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Thats what I like, a happy outcome
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Life after the Scorpio ain't easy..
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DJWerkz
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Excellent, good to hear your head did not have to come off like mine did!
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