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| What causes this? https://auszookers.com/forum/viewtopic.php?f=5&t=17677 |
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| Author: | Joe [ Wed Dec 22, 2010 2:43 am ] |
| Post subject: | What causes this? |
Yesturday arvo my car (96 vitara efi) developed a bit of a missfire when under load only every now and then so i got new spark plugs and missfire is gone 
but looking at the plugs i took out there is oil on the thread and black crap around the top of the threaded bit  but the bit that sparks is sort of white
These plugs are about 15,000 to 20,000 kms old if that helps 
Cheers Joe |
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| Author: | zooky08 [ Wed Dec 22, 2010 3:09 am ] |
| Post subject: | Re: What causes this? |
oil or fuel additives, bad fuel, might be oil ash |
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| Author: | Joe [ Wed Dec 22, 2010 3:30 am ] |
| Post subject: | Re: What causes this? |
zooky08 wrote: oil or fuel additives, bad fuel, might be oil ash
When it started to miss yesturday i put in a bottle of injector cleaner Im more worried about the oil on the thread and the black crap on the top
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| Author: | stockman [ Wed Dec 22, 2010 3:38 am ] |
| Post subject: | Re: What causes this? |
The oil on the out side and on the thread could be coming from the rocker cover. |
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| Author: | Joe [ Wed Dec 22, 2010 3:39 am ] |
| Post subject: | Re: What causes this? |
stockman wrote: The oil on the out side and on the thread could be coming from the rocker cover.
Nah no leaks that i can see
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| Author: | royce [ Wed Dec 22, 2010 3:43 am ] |
| Post subject: | Re: What causes this? |
under the rocker cover there are 4 little rubber washers that seal between the cover and the tubes the sparkplugs sit in, they are leaking into the tubes, which also then shorts out the ends of the leads 
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| Author: | Joe [ Wed Dec 22, 2010 3:51 am ] |
| Post subject: | Re: What causes this? |
Bugger  ill pull it apart and fix it once ive moved house then
Cheers |
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