What could cause me to burn oil if compression is good, and no leakage on a leakdown!
08-14-2010, 10:42 PM
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What could cause me to burn oil if compression is good, and no leakage on a leakdown!
So, my d15b7 burns oil like a mufugga! I did a comppression. 155-160, all the way across. So, I did a leakdown, and no leaking whatsoever! What the **** is happpening? lol. how can oil be getting into the cylinders, and burning without a leakdown showing leakage? I am at a loss. any help would be much apppreciated!
08-15-2010, 12:18 AM
#2
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Re: What could cause me to burn oil if compression is good, and no leakage on a leakd
So, my d15b7 burns oil like a mufugga! I did a comppression. 155-160, all the way across. So, I did a leakdown, and no leaking whatsoever! What the **** is happpening? lol. how can oil be getting into the cylinders, and burning without a leakdown showing leakage? I am at a loss. any help would be much apppreciated!
vale stem leaks are usually more prominent when first started after a long stand and lots of blue smoke which goes away after a while, also shows after accelerating after a long decelerate or downhill run
08-15-2010, 08:16 AM
#3
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Re: What could cause me to burn oil if compression is good, and no leakage on a leakd
Your Oil Control Rings could be stuck causing excessive amounts of oil consumption. The oil control ring is below the two Compression rings so your compression rings can be ok even though the Oil ring is not. The oil will get by the oil control ring and the compressions rings won't wipe it back off the Cylinder wall causing it to be burnt in the Combustion Chamber.
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