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  #1  
Old 04-27-2012, 04:55 PM
chuck01835 chuck01835 is offline
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Smoke from oil filler....

I have a gt225 with low hours. Kohler Command 15 hp. I have positive pressure with smoke coming from the oil filler. Also Making a rattling noise sounds like a rock in the flywheel. Other than that, seems like its running strong. I'm thinking broken rings. Any other opinions?

Thanks, Chuck.
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Old 04-27-2012, 05:07 PM
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Patriot Services Patriot Services is offline
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Sounds fragged. Pull a head and see how bad the cylinders are scored.
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Old 04-28-2012, 06:58 AM
Sensenig's R&S Sensenig's R&S is offline
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When is smoke coming from the oil filler? ... If there is excessive pressure it can be from a blown head gasket.
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Old 04-28-2012, 08:49 AM
Bashby Bashby is offline
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I assumed he meant air filter, as in excessive blow by from the breather.
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Old 04-28-2012, 09:55 AM
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piston slapper piston slapper is offline
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If you remove the oil fill cap on any running engine...it will blow out oil and or smoke. When you remove the cap you lose the crankcase vacuum...the absence of crancase vacuum always results in crankcase pressure...
You need to insert a vacuum gauge in the tube to check for crankcase vacuum.
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Old 04-28-2012, 11:34 AM
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Patriot Services Patriot Services is offline
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Quote:
Originally Posted by piston slapper View Post
If you remove the oil fill cap on any running engine...it will blow out oil and or smoke. When you remove the cap you lose the crankcase vacuum...the absence of crancase vacuum always results in crankcase pressure...
You need to insert a vacuum gauge in the tube to check for crankcase vacuum.
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And the rattling?
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Old 04-28-2012, 12:14 PM
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piston slapper piston slapper is offline
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One symptom at a time...
There may be a rock under the flywheel.....or broken flywheel magnets...
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Old 04-28-2012, 02:29 PM
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Patriot Services Patriot Services is offline
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Well it aint gonna fix itself. Did you bust out the wrneches yet? Did the rattle start at the same time you noticed more crankcase pressure? Or was the filler cap the first thing you pulled when you heard the rattle start?
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Old 04-28-2012, 02:37 PM
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piston slapper piston slapper is offline
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Did you check the oil?
Does the oil have any silver in it?
Was there much oil left in it after you removed the cap and let it blow out?
Just figured I would add a few questions to cut to the chase.
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Old 04-29-2012, 09:46 AM
chuck01835 chuck01835 is offline
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not sure about the rattling yet, but the head gasket was definitely blown. every else looked fine. did not pull the piston to inspect the rings. the cylinder walls looked great. I'm just going to throw a new head gasket in, put everything back together and hope for the best, altthough I am tempted to replace the lifters. Maybe the rattling was unrelated. I'll report back when i know more..

Whats the best way to remove the junk from the pistontops valves etc, seafoam?
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