milky oil
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milky oil
i just bought a 460 from my neighbor and he told me that it was running and was very strong. when i drained the fluid out the oil was a lite brown solid milky color. can this happen overtime to a healthy motor? or does it meen that the motor has a blown head gasket or worse??
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Joined: Jan 2004
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From: b.c.,canada
I had similar recently,where my 460 had been sitting 6 months before use.Luckily,I changed oil before turning it over--out drained a bunch of clear water before the oil........I don't know where it came from-must have drained in,but now that the engine's running ,everything is fine and clear!!-hopefully you're as lucky!!--I'm sure you'll get better advice than any I can give you,but thought I'd inject some hope,as a start!!
Next thing to inject is some pressure through the spark plug holes-easy if you have a compressor and an old compression testor to adapt.Take the covers/pan off,rotate the engine so that valves close on a cylyndar and you'll see if it holds pressure,or if not add a bit of oil as in a comp. test. ......cheers!!!
Next thing to inject is some pressure through the spark plug holes-easy if you have a compressor and an old compression testor to adapt.Take the covers/pan off,rotate the engine so that valves close on a cylyndar and you'll see if it holds pressure,or if not add a bit of oil as in a comp. test. ......cheers!!!
Last edited by greasymonkey; Feb 5, 2004 at 05:37 PM.
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From: West Michigan
Milky colored oil = water contamination
Water comes from 2 places, cooling system leak or condensation
A pressure test of the cooling system should rule it in or out.
Condensation happens every time the air in the crankcase cools below it's dew point. The blow-by gases in the crankcase are heavy with moisture (notice the exhaust pipe drips until it is hot).
A few short (less than 5 minute) trips where the engine is allowed to completly cool off in between will discolor the oil. A longer (greater than 15-20 minutes) will boil away the water and make the oil look normal again.
Water comes from 2 places, cooling system leak or condensation
A pressure test of the cooling system should rule it in or out.
Condensation happens every time the air in the crankcase cools below it's dew point. The blow-by gases in the crankcase are heavy with moisture (notice the exhaust pipe drips until it is hot).
A few short (less than 5 minute) trips where the engine is allowed to completly cool off in between will discolor the oil. A longer (greater than 15-20 minutes) will boil away the water and make the oil look normal again.
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