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Old 05-08-2012, 04:16 PM   #1
Join Date: Apr 2011
Location: Port Angeles,wa
Posts: 47
Engine air intake 2001 8.5 ISC

Does anyone out there have a 2001 TS with the engine air intake mounted on the roof?
If you do, what do you do about the moisture collecting in the intake hose?
Do you expect that the moisture could result in damage?
I know it cannot reach the air filter as the hose enters the box prior to the air filter--just wondering what effect the moisture might have.
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Old 05-15-2012, 08:41 PM   #2
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Join Date: Jan 2012
Location: Wisconsin
Posts: 195
There's probably a drain somewhere that lets the moisture drain before it gets to the airbox
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Old 01-20-2013, 07:20 PM   #3
Join Date: Apr 2011
Location: Port Angeles,wa
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We have the 2001 TS with the roof air intake.
Have been told there is a restriction in the piping from the collection box to the roof.
How would you determine that?
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Old 04-08-2013, 05:48 PM   #4
Join Date: Apr 2011
Location: Port Angeles,wa
Posts: 47
engine air intake 8.3 2001 TS

Just checked the air intake system. Given all the reports from Cummins (said we had a restriction for the roof to the filter)as to hose restrictions no change from operating on the air cleaner alone or in conjunction with the hose leading to the roof. I am looking for suggestions from those who have a roof air intake as to keeping the moisture out.
Seems as though the crankcase blowby, could easily have been caused by excess moisture in the system.
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Old 04-27-2013, 03:23 PM   #5
Join Date: Apr 2011
Location: Port Angeles,wa
Posts: 47
8.3 2001 ds04 air intake

Still looking for some ideas on a roof air intake. The above picture explains what we have--lets a lot of moisture in.
Along with that my filter minder has been reading high--15" H20 with 25 " being the highest. Put in a new filter--same reading.
The 7" hose from the room is approx. 7' long leading to a 2'x2' collection box.
Then 3' of the same hose to the bottom of the filter.
Has anyone with the same setup moved the intake to the side of the coach?
It would be possible where the connection box sits to go directly from the side of the coach into the collection box and do away with the roof intake.
Hard to believe the restriction--but since we are the 2nd owner--do not know if it has always been that way.
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