Spark plug tip and electrode touching!!! ???
#1
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So i have a customer with a 2000 nissan sentra. Every now and then he gets his plug in cyl 1 and 4 spark plug electrode thing pushed down to the tip. However, i dont think the piston is touching it because i looked down the hole, i do not see any marks on the piston and also, on the perimeter edge of the plug, it looks beaten up. What can cause this to the plug? Detonation? I checked the part number on the plug, its the correct one.
Can someone help me out please. thanx
Can someone help me out please. thanx
#2
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If it were detonation, the electrode or grounding strap would start to be consumed.
Only thing I know of that would cause this is contact.
Sure plugs are correct length?
tom
Only thing I know of that would cause this is contact.
Sure plugs are correct length?
tom
So i have a customer with a 2000 nissan sentra. Every now and then he gets his plug in cyl 1 and 4 spark plug electrode thing pushed down to the tip. However, i dont think the piston is touching it because i looked down the hole, i do not see any marks on the piston and also, on the perimeter edge of the plug, it looks beaten up. What can cause this to the plug? Detonation? I checked the part number on the plug, its the correct one.
Can someone help me out please. thanx
Can someone help me out please. thanx
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So where do i even start with this. I never dealt with a car like this so idk what to check first. and lets say the rod bearings were bad. In that case, it would happen all the time. This only happens under load. When the car is idling, the plugs are fine, but when you drive, the 1st and 4th plugs get smashed in. I dont understand.
and the plugs are the same length as oem.
and the plugs are the same length as oem.
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