Rate my spark plugs...

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Rate my spark plugs...

Postby Technohedge » Sun Sep 09, 2018 5:32 pm

From Caldina GTT thats not been boosting like it should for a while now. Keep meaning to get to the bottom of it.

Pressure gauge reads normal boost pressure, but it smells a lot of unburnt fuel so im wondering if its rich?

seems a fair bit of carbon on the plugs?

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Left plug is from cylinder nearest river
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Re: Rate my spark plugs...

Postby Dell'Orto » Sun Sep 09, 2018 10:05 pm

If anything, the centre two are lean.
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Re: Rate my spark plugs...

Postby 85AW20v » Tue Sep 25, 2018 6:36 pm

Or not firing properly hence the unburnt fuel smell.....
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Re: Rate my spark plugs...

Postby Mr Revhead » Tue Sep 25, 2018 7:18 pm

If not firing properly they will be wet and dirty.
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Re: Rate my spark plugs...

Postby Technohedge » Tue Sep 25, 2018 10:18 pm

Hmmm its been bugging me for ages now, I have checked the resistance on all the coil packs and they seem to be consistent. Seems to be getting manifold pressure from the boost gauge reading (although Im unsure if its getting up to pressure as quickly as before, hard to tell from looking at a gauge).

Plugs arent that old either
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Re: Rate my spark plugs...

Postby Dell'Orto » Tue Sep 25, 2018 10:51 pm

Have the injectors tested perhaps?
1988 KE70 Wagon - Slowly rusting
1990 NA6 MX-5 - because reasons
2018 Ranger - Because workcar
OMG so shiny!

Quint wrote:Not just cock, large cock.
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Re: Rate my spark plugs...

Postby Technohedge » Wed Sep 26, 2018 8:48 am

Yea I haven't tried the injectors. How does one test these?
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Re: Rate my spark plugs...

Postby Bling » Wed Sep 26, 2018 7:57 pm

You take them to someone that can test them. Matt Dunn on here used to do it I think, likely still does.
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