ivanuke Posted November 5, 2019 Share Posted November 5, 2019 (edited) I have a 2005 CHN613 that started shooting oil out of the air dryer whenever the compressor reached max PSI and leaving oil circle stains on the floor. I'm not familiar with this problem should I replace the air dryer or could is this signs that my compressor is going bad? It still builds pressure fine and when I manually drain the air tanks nothing but air comes out and a little bit of moisture at first. Any advice is appreciated. Thanks. Edited November 5, 2019 by ivanuke Quote Link to comment Share on other sites More sharing options...
Mack Technician Posted November 6, 2019 Share Posted November 6, 2019 I’d service the dryer before winter and monitor how long it goes till the oil starts showing again. Oil coating beads in the dryer neg affects their ability to saturate water. If you want a measurement take the compressor air line off the dryer and shoot it at a white piece of paper while running. See how much oil is actually coming through. Also can check fresh air supply to compressor to make sure there isn’t negative pressure causing oil to pull past the rings of the compressor. 1 Quote Link to comment Share on other sites More sharing options...
ivanuke Posted December 2, 2019 Author Share Posted December 2, 2019 (edited) I just got around to trying to fix this issue, I did what you recommended and this is the amount of oil it put on the paper in 1 minutes time. Any advice on where to check next? I'm not sure how to verifdy if oil is being pulled past the rings of the compressor. Paper was about 24" away from supply line for 1 minute. Update: I ran the truck for 30min and then did another 1 minute paper test. This is the results. Im assuming the first test was maybe risidual, dont know if itll clean up after a while. Thoughts? Edited December 2, 2019 by ivanuke Updated Quote Link to comment Share on other sites More sharing options...
Mack Technician Posted December 3, 2019 Share Posted December 3, 2019 Time for a compressor. Quote Link to comment Share on other sites More sharing options...
ivanuke Posted December 3, 2019 Author Share Posted December 3, 2019 (edited) 2 hours ago, Mack Technician said: Time for a compressor. The compressor on my truck is a meritor system saver 318, i cant seem to find any for sale. Any compressor brand should do as long as it fits and same CFM? Im thinking one from bendix as those seem easier to find. I'll have to take a closer look tomorrow. Edited December 3, 2019 by ivanuke Quote Link to comment Share on other sites More sharing options...
Mack Technician Posted December 3, 2019 Share Posted December 3, 2019 If it’s hardline plumbing you have a challenge, otherwise there will be alternatives. 1 Quote Link to comment Share on other sites More sharing options...
Mack Technician Posted December 3, 2019 Share Posted December 3, 2019 You buy the Granites you were looking at? Quote Link to comment Share on other sites More sharing options...
ivanuke Posted December 3, 2019 Author Share Posted December 3, 2019 3 hours ago, Mack Technician said: You buy the Granites you were looking at? I decide to skip on them because there's more lower mileage ones coming soon. They sold for 5000 and 6000 flat price I should of got one regardless! 1 Quote Link to comment Share on other sites More sharing options...
jekkytorris Posted March 6, 2020 Share Posted March 6, 2020 dual filter design increases the oil flow rate to the engine by 5 times that of a conventional oil filter while increasing filtering efficiency to 99% of contaminants at 25 microns. That’s a huge increase from the 52% that a standard filter can do. https://www.dieselworldmag.com/diesel-technology/tested-hubb-oil-filtration-system/ Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted March 6, 2020 Share Posted March 6, 2020 If air filter is plugged the engine has to get air some were ..? 1 Quote Ed Link to comment Share on other sites More sharing options...
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