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Spark Plugs??

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sickzuk1

az supporter

Joined: Mon Jul 12, 2010 8:04 am
Posts: 289
Location: Cairns, Queensland

Posted: Tue Oct 12, 2010 1:42 am

Ok I took my spark plugs out yesterday to give them a bit of a clean and they aren't just covered in carbon (Black hard chalky stuff) as they should be..
But they also have quite alot of black sticky shit.. Like oil almost..

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ck13488

az supporter

Joined: Wed Feb 10, 2010 10:30 pm
Posts: 452
Location: newy

Posted: Tue Oct 12, 2010 1:59 am

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue Oct 12, 2010 2:54 am

What plugs are you running.

The heat range is a biggy, IMO NGK are the ones.

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sickzuk1

az supporter

Joined: Mon Jul 12, 2010 8:04 am
Posts: 289
Location: Cairns, Queensland

Posted: Tue Oct 12, 2010 5:19 am

I am running NGK

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zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Tue Oct 12, 2010 5:53 am

oil and compression rings maby?

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue Oct 12, 2010 6:10 am

What NGK, heat range ?

Does sound like an oil bypass problem, but start at the basics.

Have you tested the lead to see if its delivering a full voltage.

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royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Tue Oct 12, 2010 6:27 am

was the engine hot when you pulled em out or just run cold? can be fuel from teh choke too

pull em out hot and have a look or just chuck new ones in, they arent dear and its pretty common

change your oil too if it needs it

CairnsZook

az supporter

Joined: Tue Jul 18, 2006 11:30 pm
Posts: 872
Location: West Coast
Vehicle: Zookless

Posted: Tue Oct 12, 2010 6:35 am

Does anyone bother running the blingy Iridium plugs in their Zook?
I run them in my bike, but then again I only have to buy two.

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Tue Oct 12, 2010 6:45 am

I reckon teh big drama would be an engine that wouldnt clog up a set in 100000km

sickzuk1

az supporter

Joined: Mon Jul 12, 2010 8:04 am
Posts: 289
Location: Cairns, Queensland

Posted: Tue Oct 12, 2010 7:12 am

Yes the engine was hot.. They are new spark plugs. And new leads.

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue Oct 12, 2010 8:30 am

Test them, new means nothing, thats why there is such a thing as warrenty.

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sickzuk1

az supporter

Joined: Mon Jul 12, 2010 8:04 am
Posts: 289
Location: Cairns, Queensland

Posted: Tue Oct 12, 2010 8:33 am

Ok.. Well how do I go about testing them?

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alien

Joined: Wed Mar 24, 2010 10:30 pm
Posts: 16343
Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.

Posted: Tue Oct 12, 2010 8:53 am

lick it.

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue Oct 12, 2010 9:04 am

Do you have a multimeter, this is the way to test leads, if not, 0pull the plug, put it on the lead, hold it by the rubber and have the motor turned over
it should thro a nice spark, if not, it could be the plug, lead, or cap, without the multimeter there is no way that I know of to pinpoint the problem.

If no or little spark, you know the problem.

Pull a good one and see what the spark is like, that way you have a comparison.

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bakerboy

Joined: Sun Oct 25, 2009 10:30 pm
Posts: 2291
Location: Perth

Posted: Tue Oct 12, 2010 1:02 pm

sickzuk1 wrote:

Yes the engine was hot.. They are new spark plugs. And new leads.

no no, they meant the plug heat range, eg BPR5ES-11, where the 5 indicates the heat range, with NGK, the lower the number the hotter the spark (the r refers to it being a resister plug, -11 means a 1.1mm gap)

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