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03-31-2013, 06:47 PM
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#1
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Winnebago Camper
Join Date: Nov 2012
Posts: 35
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Slobber Tube
I have done a search for "slobber tube", but perhaps my question is too simple.
I have a N/T/M 04 Journey with the CAT 330. I can see nothing that meets my expectation of a slobber tube extension, so figure that modification has not been done. My basic question...where does one find the slobber tube?
Thanks.
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03-31-2013, 06:56 PM
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#2
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Winnebago Owner
Join Date: Sep 2012
Location: Peru heading for Brasilia, Brazil
Posts: 55
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Slobber tubes were to describe those on two stroke diesels ie 8V71, that really did slobber - but with more modern engines probably refers to the crankcase ventilation tube that originates on the "rocker cover". My 3126 Cat has one. More modern engines probably have closed crankcase ventilation systems so there is no slobber tube to worry about.
Problem with the open tubes is when they are combined with rear radiators so half the area gets gunked up with oily dust and the engine overheats on grades.
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Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
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03-31-2013, 06:59 PM
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#3
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Winnebago Owner
Join Date: Oct 2009
Posts: 86
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Quote:
Originally Posted by rogo88
I have done a search for "slobber tube", but perhaps my question is too simple.
I have a N/T/M 04 Journey with the CAT 330. I can see nothing that meets my expectation of a slobber tube extension, so figure that modification has not been done. My basic question...where does one find the slobber tube?
Thanks.
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Her is a 2 page thread on this subject w/photo's http://www.irv2.com/forums/f101/slob...be-149503.html for you to read.
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03-31-2013, 07:30 PM
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#4
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Winnebago Camper
Join Date: Nov 2012
Posts: 35
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Palehorse;
Yes, I have seen that thread and the photos of the slobber tube "filter" which is mounted at the end of the extension. I'm seeking the origin of the slobber tube itself...does it come from the valve cover?
Thanks.
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03-31-2013, 07:49 PM
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#5
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Winnebago Master
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 1,742
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rogo88,
Yes, to answer your question, the slobber tube or, also known as a "blow-by" tube, does originate in and or, around the valve cover area. The tube, which on your engine, which is just like the engine in our '04 Itasca Horizon, if not extended, will exit about the middle length of the oil pan, almost at the pan gasket level, on the passenger side. Ours does have the extension which, is nothing, and I mean NOTHING but, a 1/2" pipe nipple, about 2" long and, some Gates Greens stripe 1" inside diameter hose, about 3.5-4' long. There's a couple of hose clamps to clamp everything together.
So, that's all there is to it.
Now, I could go on about this subject since I'd done a bit of studying on it but, suffice to say, if, you have the exact and correct amount of oil in you engine, (I'm assuming you have the small oil pan and it's a 19 quart change, with filter) then you should have very little blow-by that exits from that tube. But, extending it will surely help prevent the build up of oil mist that coats the charge air cooler and the surrounding edges of the exposed radiator fins.
Hope this helps some.
Scott
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04-01-2013, 06:01 AM
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#6
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Winnebago Camper
Join Date: Nov 2012
Posts: 35
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Fire Up
Thanks, I'm sure I will be able to find and evaluate it now.
Ron
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04-01-2013, 10:16 PM
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#7
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Winnie-Wise
Join Date: Mar 2011
Location: Fairfield, CA
Posts: 261
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rogo88, we have the same year engine and I read on the forum some time ago about using a plastic jar with lid on the end of the slobber tube. I used a small peanut butter jar; drilled a hole in the middle of the lid to fit the slobber tube and then drilled several 1/2" holes around the perimeter of the lid. I slide the lid over the tube, used a hose clamp around the tube under the lid, then screwed the jar on. Has been that way for two years and so far so good. It lets the slobber tube "breath" but catches the oil blowby in the in the bottom of the jar; I just unscrew it to clean it.
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