Guest spongebob Posted September 7, 2003 Share Posted September 7, 2003 im going to polish one, and am wondering what is used on this thing...also the intake has a slick black coating on the inside..could this be from a bad pcv valve?? Link to comment Share on other sites More sharing options...
Guest spongebob Posted September 8, 2003 Share Posted September 8, 2003 paint remover dosent work..next ill try the ole carb./parts dip... Link to comment Share on other sites More sharing options...
2seater Posted September 8, 2003 Share Posted September 8, 2003 I'm assuming the coating you are trying to remove is the black goo on the inside of the manifold. The dipping type of carb cleaner does work but it is tough to get it really clean. I did the same to mine and porting and polishing the inside is a time consuming job, and it will get full of that black stuff again, but it will still be worthwhile. The crud is normal and comes from the pcv, the EGR and the vapors from open intake valves when the engine stops. Since only air flows through intake, the stuff builds up rather than the solvent effect of gasoline. Link to comment Share on other sites More sharing options...
Guest spongebob Posted September 8, 2003 Share Posted September 8, 2003 actually im trying to remove the grey color, im going to polish the thing, but need to get past the coating 1st.. Link to comment Share on other sites More sharing options...
2seater Posted September 9, 2003 Share Posted September 9, 2003 Ooops, sorry. I always assumed it is plain old engine enamel so paint remover should work, or just sprinkle it with brake fluid <img src="http://www.aaca.org/ubbthreads/images/graemlins/grin.gif" alt="" />, at least it works where you don't want it to. Link to comment Share on other sites More sharing options...
Guest spongebob Posted September 9, 2003 Share Posted September 9, 2003 all brake fluid did was to bring the color back to bright..im gona try some corona beer next. <img src="http://www.aaca.org/ubbthreads/images/graemlins/smirk.gif" alt="" /> i have a feeling this thing will have to be blasted.. Link to comment Share on other sites More sharing options...
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