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  #1  
Old 11-28-2003, 05:51 PM
mike690003's Avatar
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Join Date: Apr 2003
Location: Miami,FL
Posts: 807
300E Spark plugs are very crusty!!!

Hello Board,

For about a week now, I noticed my car idling bad and hesitating when I pressd the gas. Well, today I bought a set of Bosch Super H9DCO sparkplugs to replace my H9DC plugs. Well when I took them out they all had oil on the threads, but my #1, #2 and #6 plugs had a very thick crust on the electrode. What could be causing that thick crust build-up on the spark plugs? My old spark plugs were about 3 months old and have about 1000 miles on them.
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1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
HID/Xenon (D2S)
Keyless Entry
Monochromatic Paint (Custom Blue)
Smoked Tails
Flat Badged (front)
Debadged (rear)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS
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  #2  
Old 11-28-2003, 07:33 PM
mike690003's Avatar
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Join Date: Apr 2003
Location: Miami,FL
Posts: 807
Is this a relatively straightforward DIY job?

Will I need any special tools??

What parts will I need?

Will I need any special parts?

Are there any instructions on how to change the seals??
__________________
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
HID/Xenon (D2S)
Keyless Entry
Monochromatic Paint (Custom Blue)
Smoked Tails
Flat Badged (front)
Debadged (rear)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS
http://memimage.cardomain.net/member.../352975_67.jpg
http://memimage.cardomain.net/member.../748335_24.jpg
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  #3  
Old 11-28-2003, 07:47 PM
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Join Date: Nov 2003
Posts: 33
mike, Sounds like you have at the very least bad valve stem seals. The seals can be replaced in a few hours with the engine still in the car. Very common for the rubber seals to get hard as wood and allow oil to get past. New seals will even control oil consumption with moderately worn guides. S.
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