Black spark plugs
Discussion
QBee said:
And no stupid electrical gremlins, unlike my daily Vorskin Durch Technik. In the recent rain I have had handbrake warning light on, car locking and unlocking itself 10 times a minute at 60 mph, flashing its headlights, alarm going off for no reason, front doors deadlocked while the rears were unlocked, not responding to the key, brake lights stuck on for 15 miles, etc etc. Bloody German rubbish..... 
Thank the lord for CAN-bus faults and BCM's 
Just bumping this because the pictures show what I wanted to ask.
Pulled my plugs and wondered why do you get a small amount of oil collecting on the plugs compression washer, all mine have it to a greater of lesser amount. I dont think it comes from the rocker gasket, must be burnt oil condensing and being pushed up the thread? Mine had been in for 5 years, although have not done more than 5k miles.
Pulled my plugs and wondered why do you get a small amount of oil collecting on the plugs compression washer, all mine have it to a greater of lesser amount. I dont think it comes from the rocker gasket, must be burnt oil condensing and being pushed up the thread? Mine had been in for 5 years, although have not done more than 5k miles.
I have had a slight misfire that I have been trying to get to the bottom of, I changed the leads, did away with the plug extenders, then changed the distributor cap and rotor arm, then the coil and amplifier finally changed the distributor after it was pointed out to me that it was 20 years old and problem solved, I now have an electrical system that hopefully will be trouble free for years to come, just need to get it on the track to give it a final test.
I had a better look yesterday when fitting new plugs.
When idleing from cold for a few minutes and then pulling a plug there is small amount of wet oil on the metal part of the plug. I also noticed some oil accumination on the compression washers of the old ones. All the cylinders are the same. No blue smoke out the back ever.
However after a 10 minute drive up the road the plugs are completely clean and dry.
I assume when idleing it is pulling some oil down the valve guides due to the high vacuum.
When idleing from cold for a few minutes and then pulling a plug there is small amount of wet oil on the metal part of the plug. I also noticed some oil accumination on the compression washers of the old ones. All the cylinders are the same. No blue smoke out the back ever.
However after a 10 minute drive up the road the plugs are completely clean and dry.
I assume when idleing it is pulling some oil down the valve guides due to the high vacuum.
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