Dirty and clean spark plugs?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=3388
Printed Date: May-06-2024 at 5:07pm
Topic: Dirty and clean spark plugs?
Posted By: 88skisupreme
Subject: Dirty and clean spark plugs?
Date Posted: April-18-2006 at 10:50am
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I just changed my plugs and on each side of the engine the front two looked good. Just a little discoloration nice and clean, the back two were darker. Is this common? does it indicate anything?
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Replies:
Posted By: Nautique2001
Date Posted: April-18-2006 at 12:32pm
When the engine is shutting off, sometimes fuel gets in the last cylinder or two that the fuel valves open up, but there's no spark for ignition. Were they wet with gas? Were the gaps fouled? I wouldn't worry about it. Also check the contact points inside the distributer cap to make sure the contacts aren't burnt or greenish. Maybe those cylinders aren't getting a healthy spark. You should worry if you're blowing smoke or raw fuel out the exhaust. This would indicate that the piston rings are worn or your cylinders are scorched.
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http://www.correctcraftfan.com/diaries/details.asp?ID=1052&sort=&pagenum=4&yrstart=1986&yrend=1990" rel="nofollow - Nautique 2001
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Posted By: 88skisupreme
Date Posted: April-19-2006 at 11:41am
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cool, I'll check the distributer. there werent any other problems just that the back plugs were darker.
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