redynscire Posted June 22, 2011 Report Share Posted June 22, 2011 Pulled my spark plugs after about 500 miles since installing them... All the front plugs are nice and pretty.. Start on the rear, #2 the insulator is all brown and it was wet looking..#4 insulator is brown but does not look wet..#6 was as pretty as the front. Now there has been a bunch brown greasy crap i have been flushing from my radiator.. thought it might have been some stop leak from the previous owner....this brown crap is about the color of #2 and #4 plugs. but with #2 looking wet, it was kinda oily looking. would burning oil make the insulator brown? or could it just be the brown crap that is in the radiator and the wet look is from antifreeze? Guess i'm asking,...Blown head gasket or jacked up bottomend? Quote Link to comment Share on other sites More sharing options...
GTP091 Posted June 23, 2011 Report Share Posted June 23, 2011 flush and refill your coolant and see if it comes back. do you have white smoke coming from the exhaust?? Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 23, 2011 Author Report Share Posted June 23, 2011 here is a pic of the plugs.. no smoke. Quote Link to comment Share on other sites More sharing options...
Addicted to eaton Posted June 23, 2011 Report Share Posted June 23, 2011 l67? Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 23, 2011 Author Report Share Posted June 23, 2011 (edited) l67? yep l67..... autolite 606's Edited June 23, 2011 by redynscire Quote Link to comment Share on other sites More sharing options...
Addicted to eaton Posted June 23, 2011 Report Share Posted June 23, 2011 when was the last time the lower intake manifold gaskets were changed? that could be the gunky shit in ur raid, flush it out. top it off with anti freeze. then check for an oil like residue in the over flow tank after driving it a few miles if none.. keep and eye on it. If still none... ur ok. If there is oil. you need to do intake gaskets.. (if they have not been done. in 30-40k or do not know when the last time they were done. Id change them.. Also check the rear valve cover gasket for leaks (to cause the rear insulation getting oil on them problem) Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 23, 2011 Author Report Share Posted June 23, 2011 LIM gaskets i replaced a week ago..been flushing the cooling system with water since i put the car together.. has a brown oil like residue in the overflow tank.. Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 23, 2011 Author Report Share Posted June 23, 2011 ok did a compession test, here we go. dry test/ wet test(oil added) 1)105 1)170 2)85 2)170 3)100 3)165 4)95 4)150 5)100 5)150 6)95 6)150 Quote Link to comment Share on other sites More sharing options...
Thundernuts1979 Posted June 23, 2011 Report Share Posted June 23, 2011 "Brown Greasy Crap" can also be used to describe what happened when my ex gf added regular green coolant to my GR which had dexcool in it..they don't mix so well and form the said Brown Greasy Crap in the cooling system....sounds like a possible head gasket. Do you have access to a pressure tester? that would help determine it. They Are pretty cheap at Harbor Freight if you have one near you. Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 23, 2011 Author Report Share Posted June 23, 2011 no pressure tester..i will look into one. the brown greasy crap may just be what was left in the block from the car i got the motor from...looked like the car had cooling issues, but it has never even got close to overheating in my car? I am pretty sure it is ring related..hopefully the rings are just gunked up with carbon and "sticking"... time for some seafoam.. Quote Link to comment Share on other sites More sharing options...
Thundernuts1979 Posted June 23, 2011 Report Share Posted June 23, 2011 Just seafoamed my Lumina last week..love that stuff.. Quote Link to comment Share on other sites More sharing options...
DaveB Posted June 24, 2011 Report Share Posted June 24, 2011 Hear hear on the Seafoam! My oil is so clear I can barely see it. I had the brown residue all through my coolant system and overflow that seemed to go away after the LIM replacement. 18 months later and then I started losing coolant. I just did the head gaskets and cleaned the crap out of the coolant system. Tons of sludge built up in the block all around the pistons. Runs super cool now and the heater gets hot fast! If you replaced the LIM I say flush the heck out of it with a hose and see if it comes back. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted June 24, 2011 Report Share Posted June 24, 2011 ok did a compession test, here we go. dry test/ wet test(oil added) 1)105 1)170 2)85 2)170 3)100 3)165 4)95 4)150 5)100 5)150 6)95 6)150 Might as well start looking for parts to repair/replace that engine. Quote Link to comment Share on other sites More sharing options...
redynscire Posted June 24, 2011 Author Report Share Posted June 24, 2011 yeah. think i am going to start looking for a low mileage N/A bottom end.. Quote Link to comment Share on other sites More sharing options...
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