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Old 06-13-2015   #1
gasp1200
 
Join Date: Jan 2014
Location: Finland
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Default About spark plugs..

Why my 1990 ZR1 eating spark plugs..??
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Old 06-13-2015   #2
Racinfan83
 
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Default Re: About spark plugs..

Define "eating?...
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Old 06-13-2015   #3
Dynomite
 
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Default Re: About spark plugs..

Quote:
Originally Posted by gasp1200 View Post
Why my 1990 ZR1 eating spark plugs..??
Welcome to the Forum

A photo of an eaten spark plug would be informative
Also.....what Brand/Number are the Spark Plugs that are being eaten?

Last edited by Dynomite; 06-13-2015 at 04:22 PM.
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Old 06-14-2015   #4
gasp1200
 
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Default Re: About spark plugs..

I mean it feels like that car eating spark plugs..i have tested acdelco 41-602 and those works only few weeks then i tested acdelco platinum 41-913 and same thing. NGK BKR6E works about few months but then the car starts again misfire and hesitate. So that kind of problem i have with this Z..

And i'm sorry about my bad english..i'll try to do my best
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Old 06-15-2015   #5
Dynomite
 
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Default Re: About spark plugs..

I would suggest that your fuel ratio (rich or lean) may be causing plug issues......and a photo of a plug would be of interest.

It would also be of interest how long this has been going on and if you changed some other component (added a new chip or using different gas for example) when this issue with plugs began.

Did your ZR-1 "not eat plugs" at some point

I am not a plug person and am not familiar with those plugs as I use NGK Iridium BKR5EIX

You English is fine

Last edited by Dynomite; 06-15-2015 at 02:24 AM.
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Old 06-15-2015   #6
mike100
 
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Default Re: About spark plugs..

Is this occurring in all cylinders?
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Old 06-15-2015   #7
XfireZ51
 
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Default Re: About spark plugs..

What are u gapping them at?
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Old 06-16-2015   #8
ZRapid-1
 
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Default Re: About spark plugs..

This website has very good pictures of various spark plug conditions.
http://www.autolite.com/media/11838/plugtips.pdf

Post which one of the examples most closely match your sparkplugs. Then we can zero in on the root cause.

I hope that the "eating" is not detonation.

Also, 91 octane (US) fuel is required.
Note that octane measurements are different between the US and Europe.
  • Research Octane Number = RON
  • Motor Octane Number = MON
The European octane rating is RON, whereas the US octane rating is an average of (RON+MON)/2.

So, US octane of 91 ((RON+MON)/2) equals EU octane of 95 (Research Octane Number = RON).

Kippis!
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