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Engineering/Technical Ask technical questions about cars. Do you know how a car engine works? |
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07-22-2002, 07:36 PM | #1 | |
The Red Baron
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Need some information regarding spark plugs.
I just changed my spark plugs from a set of Bosch Platinum’s to a set of NGK Iridium IX spark plugs. Under hard acceleration the car would misfire with the Bosch plugs in. This is why I bought the NGK, I have heard they are the best and last the longest. However; when I pulled the Bosch plugs nothing really looks wrong, I was expecting them to be burnt. Instead there are two with a white corrosion on the tips, I forget what that means. Could someone rectify that for me? Also if the damn thing keeps misfiring what could be the problem? What causes misfires besides burnt plugs? I know that having to large of a gap with too weak of an ignition system can cause this in older cars. Do anybody in here know the answers to my questions?
Thanks in advance ~ Polygon |
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07-22-2002, 08:35 PM | #2 | |
AF Enthusiast
Join Date: Mar 2002
Location: Toronto
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White spark plugs mean overheating. Here's what I found on a site...
* Incorrect spark plug (too hot heat range). * Low octane fuel. * Timing is not set properly. * Cooling problems, (dirty cylinder fins, no or low water if water cooled, low or no engine oil). * Carburetor air/fuel mixture is too lean. * Leaking crankshaft seals, no oil, base or head gasket leaks, or crankcase leaks on two stroke engines.
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