Ivan K Posted April 29 Share Posted April 29 Dont think there's one wit 0-8" H2O but these minders can easily be tested with handheld vacuum pump if in doubt. Typical range for diesels is 25" H2O for an alarm, if so equipped. It is a good practice resetting them once a while, a sudden drop in reading is an indication of a potential trouble just as an increase. Link to comment Share on other sites More sharing options...
96 EVO Posted April 29 Share Posted April 29 3 minutes ago, JeffM31 said: Does this seem too high. Not a smooth path for air. Pretty normal setup to keep rain/ wash water out of your intake. 1 Link to comment Share on other sites More sharing options...
JeffM31 Posted April 29 Author Share Posted April 29 13 minutes ago, 96 EVO said: Pretty normal setup to keep rain/ wash water out of your intake. I agree with you 100% just seems like the air path isn’t smooth Link to comment Share on other sites More sharing options...
JeffM31 Posted April 29 Author Share Posted April 29 Im thinking of cutting a piece out of it or even drill some holes in it. Above the water line of course Link to comment Share on other sites More sharing options...
96 EVO Posted April 29 Share Posted April 29 (edited) 20 minutes ago, JeffM31 said: Im thinking of cutting a piece out of it or even drill some holes in it. Above the water line of course Before I went to that trouble, I would disconnect the intake at the filter inlet, zero the filter minder, and take her for a run with some hard pulls, getting your turbo boost up to max. *Oh, obviously on a nice "dry" day! Edited April 29 by 96 EVO 1 Link to comment Share on other sites More sharing options...
JeffM31 Posted April 29 Author Share Posted April 29 (edited) 5 minutes ago, 96 EVO said: Before I went to that trouble, I would disconnect the intake at the filter inlet, zero the filter minder, and take her for a run with some hard pulls, getting your turbo boost up to max. Yes I was thinking that too, I have to wait, I have her tore apart at the moment changing coolant, belt, hoses, pulley, etc. 5 minutes ago, 96 EVO said: Before I went to that trouble, I would disconnect the intake at the filter inlet, zero the filter minder, and take her for a run with some hard pulls, getting your turbo boost up to max. Question of the hour, which minder is supposed to be on there? Mine max is 25 I see donaldson has a 30. Am I chasing a lost cause due to the wrong minder on there? Edited April 29 by JeffM31 Link to comment Share on other sites More sharing options...
Ivan K Posted April 29 Share Posted April 29 Your engine manual should have a section similar to our M11/ISM to reference the max limit but I think this is true for most diesels Link to comment Share on other sites More sharing options...
JeffM31 Posted April 29 Author Share Posted April 29 2 minutes ago, Ivan K said: Your engine manual should have a section similar to our M11/ISM to reference the max limit but I think this is true for most diesels I just have the Monaco book, is this from there? I think 25 is standard though Link to comment Share on other sites More sharing options...
Ivan K Posted April 29 Share Posted April 29 1 minute ago, JeffM31 said: I just have the Monaco book, is this from there? I think 25 is standard though It is from M11 spec document, there should be one for your respective engine. Not sure if in the coach manual. Link to comment Share on other sites More sharing options...
JeffM31 Posted April 29 Author Share Posted April 29 (edited) 8 minutes ago, Ivan K said: It is from M11 spec document, there should be one for your respective engine. Not sure if in the coach manual. Found it on Quickserve, from this 10 is normal??? Maybe I am for sure chasing nothing Maximum Intake Restriction Clean Air Filter Element 254 mm H2O [10 in H2O]Dirty Air Filter Element 635 mm H2O [25 in H2O] Edited April 29 by JeffM31 Link to comment Share on other sites More sharing options...
VinceB Posted April 30 Share Posted April 30 A few years back, I noticed that the "cobra head" elbow was collapsed and replaced it. Boost went up a bit after that. In a recent rain storm I noticed the minder is now in the yellow range but I still get 30-32 PSI of boost. It bounces back and forth between the 2 and always has. My main air intake is a scoop on the roof at the rear with a long accordion tube running down to the air box - VERY similar to what/where Jeff M pictured. I've never understood or figured out how rain water would not make its way to the air filter. Link to comment Share on other sites More sharing options...
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