Barry W Posted March 30, 2023 Share Posted March 30, 2023 Fan blade broke off and into radiator, could not be repaired. Part number on fan was easy to find and fan replaced. Radiator was another problem, but eventually found. My dumb question is does the fan suck air thru radiator and air cooler or does it blow air out thru radiator and air cooler. Fan can be turned either way. I thought it would suck air as any other vehicle. Barry Wilson 2006 Monaco Diplomat 400 ISL rear radiator Link to comment Share on other sites More sharing options...
Dr4Film Posted March 31, 2023 Share Posted March 31, 2023 (edited) The fan should pull cooler air from the outside through the condenser pack versus pulling hot engine air from the engine compartment through the stack. The latter is not a logical solution for cooling off a condenser pack. Just my opinion. Edited March 31, 2023 by Dr4Film 1 Link to comment Share on other sites More sharing options...
Solution Robert U Posted March 31, 2023 Solution Share Posted March 31, 2023 Barry, Fan blows out not sucking in. If you stand behind motorhome with engine running it will almost blow you away. By the way how long did it take you to remove radiator ? Bob U 2000 Dip Rear radiator on Diplamat not side radiator Bob U 2 Link to comment Share on other sites More sharing options...
Dr4Film Posted March 31, 2023 Share Posted March 31, 2023 I guess since there is a fan then it makes more sense that it would push air out instead of pulling air in. That's how the twin cooling fan works on my 2006 Saturn Vue. 1 Link to comment Share on other sites More sharing options...
Jdw12345 Posted March 31, 2023 Share Posted March 31, 2023 (edited) On rear radiator coaches it usually pushes hot air out the back! That’s why a rear radiator coach should be inspected on the engine side of the radiator for debris causing air flow restriction. Edited March 31, 2023 by Jdw12345 2 Link to comment Share on other sites More sharing options...
BradHend Posted March 31, 2023 Share Posted March 31, 2023 (edited) Well if you’ve ever had your crankcase breather tube melt off because of a really bad exhaust leak on a cross country holiday in east coast Canada, you’d find out that the engine side of your radiator will get completely covered and clogged in oil, indicating that the fan is indeed blowing the hot engine air through the radiator to the outside. Ask me how I know. 😡 Edited March 31, 2023 by BradHend 1 Link to comment Share on other sites More sharing options...
Guest Ray Davis Posted March 31, 2023 Share Posted March 31, 2023 1 hour ago, Barry W said: does the fan suck air thru radiator and air cooler or does it blow air out thru radiator and air cooler. Fan can be turned either way. Many fan blades do have a front and backside. The blades usually have a slight curve on the output side. However IMHO turning the fan around will not change the air direction. Link to comment Share on other sites More sharing options...
Barry W Posted March 31, 2023 Author Share Posted March 31, 2023 Well consensus being airflow is to outside, then I need to turn fan around. Just need to remove air cooler then put back, two hours of work for this old man First time removing radiator was about three hours of work. But since have learned how much faster. Link to comment Share on other sites More sharing options...
guy_ethier Posted March 31, 2023 Share Posted March 31, 2023 Any chance you could post pictures long the way? That would certainly help anybody else out here who needs to change out their radiator and get access to these rear mounted ISL fans. Thanks for any pics/videos! Link to comment Share on other sites More sharing options...
BradHend Posted March 31, 2023 Share Posted March 31, 2023 My ISB fan is easily removable with just four bolts. No need to remove the radiator. Just have to be a bit of a contortionist. 1 Link to comment Share on other sites More sharing options...
guy_ethier Posted March 31, 2023 Share Posted March 31, 2023 I assume that you must access the top part through the bedroom closet inside the coach as that would be the only way to reach the top bolts, from what I am able to see crawling underneath my '06 Endeavor (sister coach to the Diplomat)? I find just changing out the oil filter enough of a contortion for these 'ol bones! Link to comment Share on other sites More sharing options...
BradHend Posted March 31, 2023 Share Posted March 31, 2023 Bedroom closet yes. Have had some good times under there. Lol. Link to comment Share on other sites More sharing options...
Barry W Posted April 1, 2023 Author Share Posted April 1, 2023 On 3/31/2023 at 10:08 AM, guy_ethier said: Any chance you could post pictures long the way? That would certainly help anybody else out here who needs to change out their radiator and get access to these rear mounted ISL fans. Thanks for any pics/videos! I did not see your post until I had removed CAC and reversed fan. But here are some pics as I was finishing put everything back together. When removing loosen this clamp and use small screwdriver to pry rubber from CAC. This is on the left side standing in back of Coach. On right side open access door in bedroom and loosen clamp on hose attached to the turbo. This show two of the three bolts that attach the CAC to the top of the shroud. Bottom of bracket bolts to frame. One on each side. Bracket uses two bolts into CAC. Right hand side Three brackets from shroud bolt into side. Left hand side That secures CAC, Radiator is just held in place by bottom frame and CAC. Z shaped panel screwed in with sheet metal screws Right hand panel Left hand panel. Some of the sheet metal screws were not holding tight so I bought next size to replace loose screws. Replace right hand panel Left hand panel Finished, fingers and all. Link to comment Share on other sites More sharing options...
guy_ethier Posted April 1, 2023 Share Posted April 1, 2023 Barry, Thanks for the pics. Approximately how much coolant did you lose when doing the CAC RE and RE? Did you let it fall into a bucket and, if so, where is the best place to place it? Also, is the CAC very heavy? One man job, or 2 like Radiator? Any other words of wisdom/precautions are much appreciated. Thanks again for the pics...as Monacomama would say: "A picture is worth a thousand words." I miss her sayings of wisdom on the IRV2 site. ~ cheers, Link to comment Share on other sites More sharing options...
Barry W Posted April 1, 2023 Author Share Posted April 1, 2023 37 minutes ago, guy_ethier said: Barry, Thanks for the pics. Approximately how much coolant did you lose when doing the CAC RE and RE? Did you let it fall into a bucket and, if so, where is the best place to place it? Also, is the CAC very heavy? One man job, or 2 like Radiator? Any other words of wisdom/precautions are much appreciated. Thanks again for the pics...as Monacomama would say: "A picture is worth a thousand words." I miss her sayings of wisdom on the IRV2 site. ~ cheers, Lost all of coolant mainly because of where fan blade hit radiator, replaced nine gallons. After motor warm up, will check, probably add part of another gallon. CAC is not that heavy for me anyway. I had a mechanic friend help take apart to get to radiator, after received parts he was tied up with other projects so I did all the replacement myself. Reason for his help to begin I was not sure could do by myself, but now am confident that if you are mechanically inclined it is not a really hard repair. Radiator sits on frame at bottom, with one hose at bottom and other at top, then the CAC rests on top of radiator (rubber between the two) then all of the brackets bolted to the CAC. Barry Wilson Link to comment Share on other sites More sharing options...
guy_ethier Posted April 1, 2023 Share Posted April 1, 2023 Barry, Thanks again! 👍 Link to comment Share on other sites More sharing options...
Scotty Hutto Posted April 7, 2023 Share Posted April 7, 2023 Thanks Barry! Looks like I'm going to be doing this in a few weeks... Scotty Link to comment Share on other sites More sharing options...
Barry W Posted April 7, 2023 Author Share Posted April 7, 2023 1 hour ago, Scotty Hutto said: Thanks Barry! Looks like I'm going to be doing this in a few weeks... Scotty Any questions, will try my best to answer. Link to comment Share on other sites More sharing options...
96 EVO Posted April 7, 2023 Share Posted April 7, 2023 On 4/1/2023 at 12:30 PM, guy_ethier said: Barry, Thanks for the pics. Approximately how much coolant did you lose when doing the CAC RE and RE? Did you let it fall into a bucket and, if so, where is the best place to place it? Also, is the CAC very heavy? One man job, or 2 like Radiator? Any other words of wisdom/precautions are much appreciated. Thanks again for the pics...as Monacomama would say: "A picture is worth a thousand words." I miss her sayings of wisdom on the IRV2 site. ~ cheers, No coolant in a charge air cooler. Link to comment Share on other sites More sharing options...
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