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06-18-2011, 12:19 PM
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#1 |
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3" Exhaust
Join Date: Feb 2010
Location: Chicago
Posts: 240
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The only thing I can think of that will increase compression is if something (carbon deposits, oil,coolant,fuel) is taking up space in the combustion chamber causing the air to be compressed into a smaller space. If there was coolant in the cylinder from a bad head gasket it could increase the pressure. Is the coolant low? Can you see anything in the cylinder? It does seem like an unusual symptom for a BHG although the other symptoms match. You could try pressurizing the cooling system with the #5 spark plug out and listen carefully for hissing or gurgling. Good luck.
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06-19-2011, 02:00 AM
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#2 |
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3" Exhaust
Join Date: Mar 2010
Location: Washington State
Posts: 125
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Carbon deposits increasing the compression to 200PSI?
I will suggest a stuck valve. Pull your cam covers and check #5 exhaust valve. |
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