brown smoke??
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brown smoke??
hey, just finished doing the head on my 90 4runner 22re. the old head was cracked and had a bad valve guide on one cylinder. so bad, that it would foul the plug. But it wouldnt blow any blue smoke.
anyways, i just finished the head swap. and now it smokes. a little blue and when you rev it up....... brown smoke???? I have a feeling the blue smoke is just what was in the exhaust being burnt off as the tail pipe was black before. Now its a brownish colour. any ideas what would cause that??
cat is new as well as 02 sensor. rest of exhuast seems ok.
anyways, i just finished the head swap. and now it smokes. a little blue and when you rev it up....... brown smoke???? I have a feeling the blue smoke is just what was in the exhaust being burnt off as the tail pipe was black before. Now its a brownish colour. any ideas what would cause that??
cat is new as well as 02 sensor. rest of exhuast seems ok.
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update. did a compression test. 180-185 on all 4. plugs are clean. compresion before was 160, 120, 160, 160 and #3 plug was covered in oil.
gonna put a permit on it and drive it for a day or two and see what happens.
smoke now is more of a greyish blue colour and does not smell like oil or coolant.
gonna put a permit on it and drive it for a day or two and see what happens.
smoke now is more of a greyish blue colour and does not smell like oil or coolant.
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