Re: [DML] Digest Number 1820 Carbon buildup

[rbrogren@xxxx]

I agree with David Teitelbaum that modern gas (and hotter running engines) 
has reduced carboning problems, however, during my recent water pump replacement 
I noticed that the intake valves and ports had significant carbon buildup and 
looked horrible! The injectors were just as bad and I shipped them off to Rob 
Grady who cleaned and tested them. I wasn't in the mood to pull the heads so 
the carbon on valve stems and intake ports is still there. The oil consumption 
is negligable.The Bosch spark plugs looked just right, light grey/brown and 
no noticable electrode wear, but I replaced them with the same grade anyway 
(copper tips). My assumption is that the carbon has probably been there since 
the early 80's.

I am not about to run any Engine Top End Cleaner through this engine. I tried 
it on other engines years ago and that was quite a spectacle -- like 
Minnesota Mosquito Control was out pumping and the fog hung around the neighborhood 
for quite a while! I am not much of a believer in miracle concoctions to fix 
problems because in my experience they didn't do much good. (The exception is 
Marvel Mystery Oil, but that is another story!) 

Roger
Vin 1074


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