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6080 mystery noise |
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Jim 8030
Bronze Level Joined: 28 Sep 2009 Points: 1 |
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Posted: 28 Sep 2009 at 10:51am |
6080 has a noise from injector side of engine. noise sounds like a cleaning tool from a compressor going phht..phht etc. It has the frequency of an old johnny popper working when the 6080 is idling. Oil is not creamy and not using any. Water is ok and not using any. I thought at first it was belt noise, but I tightened the belt. (It needed it). I could use some suggestions as to how to find this. It sounds like air not knocking especially when shutting down. I can't tell if it is vacuum or pressure. Thanks for any help. Regards, Jim
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skipwetle NWIA
Silver Level Joined: 14 Sep 2009 Location: Danbury, IA Points: 94 |
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Sounds like an injector is leaking compression, usually has a slight miss. Sometimes you can see the dust seal around the injector move in time with the noise. Usually with the roosa master injectors and not the bosh injectors. Check the hold down bolts for loose ones, idle the eng and keep looking around the injectors, sometimes run the rpm up and look for the smoke. HTH
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Hurst
Orange Level Joined: 11 Sep 2009 Location: Midway, Ky Points: 1212 |
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Soap and water around the injector to see if you have bubbles?
Hurst |
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1979 Allis Chalmers 7000
5800 Hours |
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