I have tried the search but can't find anything about this problem. My 84 500SEL has been using oil at about 1 qt/1000 miles. I know this is not bad but the car started skipping at idle and I found #8 plug was oil fouled. I replaced the plug and all was well. Well I couldn't accept this so I started doing an investigation and found that #8 intake valve guide was loose in the head. Has anyone had/seen this problem and is there any easy fix short of replacing the head? This car is in very good condition and needs to be fixed but I can't see spendig a $1000+ because of the mileage (and I don't have that kind of money right now). Any words of encouragement?
Thanks

__________________
84 500 SEL (307,xxx miles)